Combustion engine with at least one exhaust gas cleaning arrangement

Claim 2

A combustion engine comprising a plurality of combustion spaces or cylinders, fuel and combustion air supplying means, exhaust conduits for the individual combustion spaces for delivering the exhaust gas from said combustion spaces, an exhaust gas cleaning arrangement connected in a common branch of said individual exhaust gas conduits, sensing means coupled to said combustion spaces for sensing characteristic conditions of the individual cylinders, means reponsive to an individual sensed condition when the individual condition of a cylinder deviates from a predetermined magnitude and developing a signal when such deviation occurs, means responsive to said signal for regulating the fuel flow to said individual cylinder when said deviation occurs, a temperature sensor means coupled to said exhaust gas cleaning arrangement for sensing the temperature thereof and for producing a signal when said temperature of said exhaust gas cleaning means deviates from said predetermined value, a gate circuit means having a pair of inputs, the output of said individual sensing means sensing the condition of the individual cylinder being connected to one of said inputs of said gate circuit means, the output of said temperature sensor means coupled to said exhaust gas cleaning arrangement being coupled to the other one of said input of said gating circuit means, said gating circuit means passing the output signal of said temperature sensor means of said exhaust cleaning arrangement when an output signal is present at said first output thereof, said fuel supply means comprising operating means, the output of said gating circuit means being coupled to said operating means for energizing said operating means for effecting regulation of said fuel supply to said individual cylinder when the conditions thereof deviate from a predetermined magnitude.

Claim 3

The combination as claimed in claim 1, wherein said combustion engine comprises a combustion air dosing means for each of said individual cylinders said combustion air supply means having an operating means for controlling the poSitioning of said combustion air dosing means, the output signal of said gating circuit means being coupled also to said operating means for said combustion air dosing means.

Claim 4

The combination as claimed in claim 1, wherein said output signal of said gating circuit means being effective to disconnect the fuel supply to said individual cylinder means.

Claim 5

The combination as claimed in claim 1, wherein said combustion engine comprises an outside fuel-air mixture means, said fuel-air mixture means comprising an operating member and a closure member placed in the supply conduit of said fuel-air mixture, said output signal of said gating circuit means effecting said operating member for closing said closure member and thereby effecting regulation of the fuel-air supply to said individual cylinder.

Claim 6

The combination as claimed in claim 2, wherein a comparing circuit is connected to the output of said individual sensor means sensing the conditions of said individual cylinders, said comparing circuit determining when the output of said individual sensor means deviates from a predetermined magnitude representing the normal operation of an individual cylinder.

Claim 7

The combination as claimed in claim 1, wherein said sensor means are temperature sensor means for sensing the temperature of the individual cylinders.

Claim 8

The combination as claimed in claim 1, wherein said sensor means are pressure sensing means for sensing the pressure in the individual cylinders.

Claim 9

The combination as claimed in claim 1, wherein said sensor means are temperature sensors for sensing the temperature of the exhaust from the individual cylinders.

Claim 10

A combustion engine comprising a plurality of combustion spaces or cylinders, fuel and combustion air supplying means, exhaust conduits for the individual combustion spaces for delivering the exhaust gas from said combustion spaces, an exhaust gas cleaning arrangement connected in a common branch of said individual exhaust gas conduits, sensing means coupled to said combustion spaces for sensing characteristic conditions of the individual cylinders, and means responsive to an individual sensed condition when the individual condition of a cylinder deviates from a predetermined magnitude so as to lead to overheating of said exhaust gas cleaning arrangement and developing a signal when such deviation occurs, and means responsive to said signal and reducing the fuel flow only to said individual cylinder when said deviation occurs and wherein a temperature sensor means is coupled to said exhaust gas cleaning arrangement for sensing the temperature thereof and for producing a signal when said temperature of said exhaust gas cleaning means deviates from said predetermined value, a gate circuit means having a pair of inputs, the output of said individual sensing means sensing the condition of the individual cylinder is being connected to one of said inputs of said gate circuit means, the output of said temperature sensor means coupled to said exhaust gas cleaning arrangement being coupled to the other one of said inputs of said gating circuit means, said gating circuit means passing the output signal of said temperature sensor means of said exhaust cleaning arrangement when an output signal is present at said first output thereof, said fuel supply means comprising operating means, the output of said gating circuit means being coupled to said operating means for energizing said operating means for effecting regulation of said fuel supply to said individual cylinder when the conditions thereof deviate from a predetermined magnitude.

Claim 11

A combustion engine comprising a plurality of combustion spaces or cylinders, fuel and combustion air supplying means, exhaust conduits for the individual combustion spaces for delivering the exhaust gas from said combustion spaces, an exhaust gas cleaning arrangement connected in a common branch of said individual exhaust gas conduits, sensing means coupled to said combustion spaces for sensing characteristic conditions of the individual cylinders, and means responsive to an individual sensed condition when the individual condition of a cylinder deviates from a predetermined magnitude so as to lead to overheating of said exhaust gas cleaning arrangement and developing a signal when such deviation occurs, and means responsive to said signal and reducing the fuel flow only to said individual cylinder when said deviation occurs and wherein a temperature sensor means is coupled to said exhaust gas cleaning arrangement for sensing the temperature thereof and for producing a signal when said temperature of said exhaust gas cleaning means deviates from said predetermined value, a gate circuit means having a pair of inputs, the output of said individual sensing means sensing the condition of the individual cylinder is being connected to one of said inputs of said gate circuit means, the output of said temperature sensor means coupled to said exhaust gas cleaning arrangement being coupled to the other one of said inputs of said gating circuit means, said gating circuit means passing the output signal of said temperature sensor means of said exhaust cleaning arrangement when an output signal is present at said first output thereof, said fuel supply means comprising operating means, the output of said gating circuit means being coupled to said operating means for energizing said operating means for effecting regulation of said fuel supply to said individual cylinder when the conditions thereof deviate from a predetermined magnitude.

Claim 12

The combination as claimed in claim 9, wherein said combustion engine comprises a combustion air dosing means for each of said individual cylinders, said combustion air supply means having an operating means for controlling the positioning of said individual cylinders, said combustion air supply means having an operating means for controlling the positioning of said combustion air dosing means, the output signal of said gating circuit means being coupled also to said operating means for said combustion air dosing means.

Claim 13

The combination as claimed in claim 9, wherein said output signal of said gating circuit means is effective to disconnect the fuel supply to said individual cylinder means.

Claim 14

The combination as claimed in claim 9, wherein said combustion engine comprises an outside fuel-air mixture means, said fuel-air mixture means comprising a supply conduit an operating member and a closure member placed in the supply conduit of said fuel-air mixture, said output signal of said gating circuit means effecting said operating member for closing said closure member and thereby preventing fuel-air supply to said individual cylinder.

Claim 15

The combination as claimed in claim 9, wherein a comparing circuit is connected to the output of said individual sensor means sensing the conditions of said individual cylinders, said comparing circuit determining when the output of said individual sensor means deviates from a predetermined magnitude representing the normal operation of an individual cylinder.

Claim 16

The combination as claimed in claim 9, wherein said sensor means are temperature sensor means for sensing the temperature of the individual cylinders.

Claim 17

The combination as claimed in claim 9, wherein said sensor means are pressure sensing means for sensing the pressure in the individual cylinders.

Claim 18

The combination as claimed in claim 9, wherein said sensor means are temperature sensors for sensing the temperature of the exhaust from the individual cylinders.

Claim 19

A combustion engine comprising a plurality of groups of combustion spaces or cylinders, fuel and combustion air supplying means, a common exhaust conduit for each of said group of combustion spaces for delivering the exhaust gas from said combustion spaces, an exhaust gas cleaning arrangement connected to said common exhaust gas conduits, sensing means coupled to said combustion spaces for sensing characteristic conditions of the individual cylinders, and means responsive to an individual sensed condition when the individual condition of a cylinder deviates from a predetermined magnitude so as to lead to overheating of said exhaust gas cleaning arrangement, and developing a signal when such deviation occurs, and means responsive to said signal and reducing the fuel flow only to said individual cylinder when said deviation occurs, there being further included a temperature sensor means coupled to said exhaust gas cleaning arrangement for sensing the temperature thereof and for producing a signal when said temperature of said exhaust gas cleaning means deviates from said predetermined value, a gate circuit means having a pair of inputs, the output of said individual sensing means sensing the condition of the individual cylinder being connected to one of said inputs of said gate circuit means, the output of said temperature sensor means coupled to said exhaust gas cleaning arrangement being coupled to the other one of said inputs of said gating circuit means, said gating circuit means passing the output signal of said temperature sensor means of said exhaust cleaning arrangement when an output signal is present at said first output thereof, said fuel supply means comprising operating means, the output of said gating circuit means being coupled to said operating means for energizing said operating means for effecting regulation of said fuel supply to said individual cylinder when the conditions thereof deviate from a predetermined magnitude.

Claim 20

A combustion engine comprising a plurality of groups of combustion spaces or cylinders, fuel and combustion air supplying means, a common exhaust conduit for each of said group of combustion spaces for delivering the exhaust gas from said combustion spaces, an exhaust gas cleaning arrangement connected to said common exhaust gas conduits, sensing means coupled to said combustion spaces for sensing characteristic conditions of the individual cylinders, and means responsive to an individual sensed condition when the individual condition of a cylinder deviates from a predetermined magnitude so as to lead to overheating of said exhaust gas cleaning arrangement, and developing a signal when such deviation occurs, and means responsive to said signal and reducing the fuel flow only to said individual cylinder when said deviation occurs, there being further included a temperature sensor means coupled to said exhaust gas cleaning arrangement for sensing the temperature thereof and for producing a signal when said temperature of said exhaust gas cleaning means deviates from said predetermined value, a gate circuit means having a pair of inputs, the output of said individual sensing means sensing the condition of the individual cylinder being connected to one of said inputs of said gate circuit means, the output of said temperature sensor means coupled to said exhaust gas cleaning arrangement being coupled to the other one of said inputs of said gating circuit means, said gating circuit means passing the output signal of said temperature sensor means of said exhaust cleaning arrangement when an output signal is present at said first output thereof, said fuel supply means comprising operating means, the output of said gating circuit means being coupled to said operating means for energizing said operating means for effecting regulation of said fuel supply to said individual cylinder when the conditions thereof deviate from a predetermined magnitude.

Claim 21

The combination as claimed in claim 17, wherein said combustion engine comprises an outside fuel-air mixture means, said fuel-air mixture means comprising a supply conduit an operating member and a closure member placed in the supply conduit of said fuel-air mixture, said output signal of said gating circuit means effecting said operating member for closing said closure member and thereby preventing fuel-air supply to said individual cylinder.

Claim 22

The combinaTion as claimed in claim 17, wherein a comparing circuit is connected to the output of said individual sensor means sensing the conditions of said individual cylinders, said comparing circuit determining when the output of said individual sensor means deviates from a predetermined magnitude representing the normal operation of an individual cylinder.

Claim 23

A combustion engine comprising a plurality of groups of combustion spaces or cylinders, fuel and combustion air supplying means, a common exhaust conduit for each of said groups of combustion spaces for delivering the exhaust gas from said combustion spaces, and exhaust gas cleaning arrangement connected to said common exhaust gas conduits, sensing means coupled to said combustion spaces for sensing characteristic conditions of the individual cylinders, and means responsive to an individual sensed condition when the individual condition of a cylinder deviates from a predetermined magnitude so as to lead to overheating of said exhaust gas cleaning arrangement, and developing a signal when such deviation occurs, and means responsive to said signal for reducing the fuel flow to said cylinder group in which one of said cylinders deviates.

Claim 24

A combustion engine comprising a plurality of groups of combustion spaces or cylinders, fuel and combustion air supplying means, a common exhaust conduit for each of said groups of combustion spaces for delivering the exhaust gas from said combustion spaces, and exhaust gas cleaning arrangement connected to said common exhaust gas conduits, sensing means coupled to said combustion spaces for sensing characteristic conditions of the individual cylinders, and means responsive to an individual sensed condition when the individual condition of a cylinder deviates from a predetermined magnitude so as to lead to overheating of said exhaust gas cleaning arrangement, and developing a signal when such deviation occurs, and means responsive to said signal for reducing the fuel flow to said cylinder group in which one of said cylinders deviates.

Claim 25

The combination as claimed in claim 20, wherein a temperature sensor means is coupled to said exhaust gas cleaning arrangement for sensing the temperature thereof and for producing a signal when said temperature of said exhaust gas cleaning means deviates from said predetermined value, a gate circuit means having a pair of inputs, the output of said individual sensing means sensing the condition of the individual cylinder being connected to one of said input of said gate circuit means, the output of said temperature sensor means coupled to said exhaust gas cleaning arrangement being coupled to the other one of said inputs of said gating circuit means, said gating circuit means passing the output signal of said temperature sensor means of said exhaust cleaning arrangement when an output signal is present at said first output thereof, said fuel supply means comprising operating means, the output of said gating circuit means being coupled to said operating means for energizing said operating means for effecting regulation of said fuel supply to said cylinder group when the condition of any cylinder therein deviates from a predetermined magnitude.

Claim 26

The combination as claimed in claim 21, wherein said combustion engine comprises an outside fuel-air mixture means, said fuel-air mixture means comprising a supply conduit an operating member and a closure member placed in the supply conduit of said fuel-air mixture, said output signal of said gating circuit means effecting said operating member for closing said closure member and thereby effecting regulation of the fuel-air supply to said cylinder group that includes said deviating cylinder.

Claim 27

The combination as claimed in claim 22, wherein a comparing circuit is connected to the output of said individual sensor means sensing the conditions of said individual cylinders, said comparing circuit determining when the output of said individual sensor means deviates from a predetermined magnitude representing the normal operation of an individual cylinder.

Claim 28

A combustion engine comprising a plurality of combustion spaces or cylinders, fuel and combustion air supplying means, exhaust conduits for the individual combustion spaces for delivering the exhaust gas from said combustion spaces, an exhaust gas cleaning arrangement connected in a common branch of said individual exhaust gas conduits, pressure sensing means coupled to said combustion spaces for sensing the pressure of the individual cylinders, and means responsive to an individual sensed condition when the individual condition of a cylinder deviates from a predetermined magnitude so as to lead to overheating of said exhaust gas cleaning arrangement and developing a signal when such deviation occurs, and means responsive to said signal and reducing the fuel flow only to said inDividual cylinder when said deviation occurs.

Claim 29

A combustion engine comprising a plurality of combustion spaces or cylinders, fuel and combustion air supplying means, exhaust conduits for the individual combustion spaces for delivering the exhaust gas from said combustion spaces, an exhaust gas cleaning arrangement connected in a common branch of said individual exhaust gas conduits, pressure sensing means coupled to said combustion spaces for sensing the pressure of the individual cylinders, and means responsive to an individual sensed condition when the individual condition of a cylinder deviates from a predetermined magnitude so as to lead to overheating of said exhaust gas cleaning arrangement and developing a signal when such deviation occurs, and means responsive to said signal and reducing the fuel flow only to said inDividual cylinder when said deviation occurs.

Claim 30

A combustion engine comprising a plurality of groups of combustion spaces or cylinders, fuel and combustion air supplying means, a common exhaust conduit for each said group of combustion spaces for delivering the exhaust gas from said combustion spaces, an exhaust gas cleaning arrangement connected to said common exhaust gas conduits, sensing means coupled to said combustion spaces for sensing characteristic conditions of the individual cylinders, and means responsive to an individual sensed condition when the individual condition of a cylinder deviates from a predetermined magnitude so as to lead to overheating of said exhaust gas cleaning arrangement, and developing a signal when such deviation occurs, and means responsive to said signal and reducing the fuel flow only to said individual cylinder when said deviation occurs and wherein said combustion engine comprises an outside fuel-air mixture means including a supply conduit an operating member and a closure member placed in the supply conduit of said fuel-air mixture, said signal effecting said operating member for closing said closure member and thereby effecting regulation of the fuel-air supply to said individual cylinder.

Claim 31

A combustion engine comprising a plurality of groups of combustion spaces or cylinders, fuel and combustion air supplying means, a common exhaust conduit for each said group of combustion spaces for delivering the exhaust gas from said combustion spaces, an exhaust gas cleaning arrangement connected to said common exhaust gas conduits, sensing means coupled to said combustion spaces for sensing characteristic conditions of the individual cylinders, and means responsive to an individual sensed condition when the individual condition of a cylinder deviates from a predetermined magnitude so as to lead to overheating of said exhaust gas cleaning arrangement, and developing a signal when such deviation occurs, and means responsive to said signal and reducing the fuel flow only to said individual cylinder when said deviation occurs and wherein said combustion engine comprises an outside fuel-air mixture means including a supply conduit an operating member and a closure member placed in the supply conduit of said fuel-air mixture, said signal effecting said operating member for closing said closure member and thereby effecting regulation of the fuel-air supply to said individual cylinder.

Claim 32

A combustion engine comprising a plurality of groups of combustion spaces or cylinders, fuel and combustion air supplying means, a common exhaust conduit for each said group of combustion spaces for delivering the exhaust gas from said combustion spaces, an exhaust gas cleaning arrangement connected to said common exhaust gas conduits, sensing means coupled to said combustion spaces for sensing characteristic conditions of the individual cylinders, and means responsive to an individual sensed condition when the individual condition of a cylinder deviates from a predetermined magnitude so as to lead to overheating of said exhaust gas cleaning arrangement, and developing a signal when such deviation occurs, and means responsive to said signal for reducing the fuel flow to said cylinder group in which one of said cylinders deviates, said combustion engine comprising an outside fuel-air mixture means including a supply conduit an operating member and a closure member placed in the supply conduit of said fuel-air mixture, said signal effecting said operating member for closing said closure member and thereby effecting regulation of the fuel-air supply to said cylinder group that includes said deviating cylinder.

Claim 33

A combustion engine comprising a plurality of groups of combustion spaces or cylinders, fuel and combustion air supplying means, a common exhaust conduit for each said group of combustion spaces for delivering the exhaust gas from said combustion spaces, an exhaust gas cleaning arrangement connected to said common exhaust gas conduits, sensing means coupled to said combustion spaces for sensing characteristic conditions of the individual cylinders, and means responsive to an individual sensed condition when the individual condition of a cylinder deviates from a predetermined magnitude so as to lead to overheating of said exhaust gas cleaning arrangement, and developing a signal when such deviation occurs, and means responsive to said signal for reducing the fuel flow to said cylinder group in which one of said cylinders deviates, said combustion engine comprising an outside fuel-air mixture means including a supply conduit an operating member and a closure member placed in the supply conduit of said fuel-air mixture, said signal effecting said operating member for closing said closure member and thereby effecting regulation of the fuel-air supply to said cylinder group that includes said deviating cylinder.

Claim 34

A combustion engine comprising a plurality of combustion spaces or cylinders, fuel and combustion air supplying means, exhaust conduits for the individual combustion spaces for delivering the exhaust gas from said combustion spaces, an exhaust gas cleaning arrangement connected in a common branch of said individual exhaust gas conduits, sensing means coupled to said combustion spaces for sensing characteristic conditions of the individual cylinders, wherein a comparing circuit is connected to the outputs of said individual sensor means for sensing the conditions of said individual cylinders, said comparing circuit comparing output signals of said individual sensor means and thereby determining when the sensed characteristic condition of an individual cylinder leads to overheating of said exhaust gas cleaning arrangement and developing a signal when such condition occurs, and means responsive to said signal for reducing fuel flow only to said individual cylinder when such condition occurs.

Claim 35

A combustion engine comprising a plurality of combustion spaces or cylinders, fuel and combustion air supplying means, exhaust conduits for the individual combustion spaces for delivering the exhaust gas from said combustion spaces, an exhaust gas cleaning arrangement connected in a common branch of said individual exhaust gas conduits, sensing means coupled to said combustion spaces for sensing characteristic conditions of the individual cylinders, wherein a comparing circuit is connected to the outputs of said individual sensor means for sensing the conditions of said individual cylinders, said comparing circuit comparing output signals of said individual sensor means and thereby determining when the sensed characteristic condition of an individual cylinder leads to overheating of said exhaust gas cleaning arrangement and developing a signal when such condition occurs, and means responsive to said signal for reducing fuel flow only to said individual cylinder when such condition occurs.

Claim 36

A combustion engine comprising a plurality of groups of combustion spaces or cylinders, fuel and combustion air supplying means, exhaust conduits for the individual groups of combustion spaces for delivering the exhaust gas from said combustion spaces, an exhaust gas cleaning arrangement connected in a common branch of said individual exhaust gas conduits, sensing means coupled to parts of said groups for sensing characteristic conditions of the cylinders of the individual groups, wherein a comparing circuit is connected to the output of said individual sensor means of said groups, said comparing circuit comparing output signals of said individual sensor means of different groups and thereby determining when the sensed characteristic condition of a cylinder of an individual group leads to overheating of said exhaust gas cleaning arrangement and developing a signal when such condition occurs, and means responsive to said signal for reducing the fuel flow only to said cylinder group when such condition occurs in one of said cylinders in said group.

Claim 37

A combustion engine comprising a plurality of groups of combustion spaces or cylinders, fuel and combustion air supplying means, exhaust conduits for the individual groups of combustion spaces for delivering the exhaust gas from said combustion spaces, an exhaust gas cleaning arrangement connected in a common branch of said individual exhaust gas conduits, sensing means coupled to parts of said groups for sensing characteristic conditions of the cylinders of the individual groups, wherein a comparing circuit is connected to the output of said individual sensor means of said groups, said comparing circuit comparing output signals of said individual sensor means of different groups and thereby determining when the sensed characteristic condition of a cylinder of an individual group leads to overheating of said exhaust gas cleaning arrangement and developing a signal when such condition occurs, and means responsive to said signal for reducing the fuel flow only to said cylinder group when such condition occurs in one of said cylinders in said group.

Claim 38

A combustion engine comprising a plurality of groups of combustion spaces or cylinders, fuel and combustion air supplying means, exhaust conduits for the individual groups of combustion spaces for delivering the exhaust gas from said combustion spaces, an exhaust gas cleaning arrangement connected in a common branch of said individual exhaust gas conduits, sensing means coupled to parts of said groups for sensing characteristic conditions of the cylinders of the individual groups, and means responsive to an individual sensed condition when the individual condition of a cylinder deviates from a predetermined magnitude so as to lead to overheating of said exhaust gas cleaning arrangement, and developing a signal when such deviation occurs, and means reponsive to said signal for reducing the fuel flow only to said individual cylinder when said deviation occurs, there being further included a comparing circuit connected to the output of said individual sensor means sensing the conditions of said individual cylinders, said comparing circuit determining when the output of said individual sensor means deviates from a predetermined magnitude representing the normal operation of an individual cylinder.

Claim 39

A combustion engine comprising a plurality of groups of combustion spaces or cylinders, fuel and combustion air supplying means, exhaust conduits for the individual groups of combustion spaces for delivering the exhaust gas from said combustion spaces, an exhaust gas cleaning arrangement connected in a common branch of said individual exhaust gas conduits, sensing means coupled to parts of said groups for sensing characteristic conditions of the cylinders of the individual groups, and means responsive to an individual sensed condition when the individual condition of a cylinder deviates from a predetermined magnitude so as to lead to overheating of said exhaust gas cleaning arrangement, and developing a signal when such deviation occurs, and means reponsive to said signal for reducing the fuel flow only to said individual cylinder when said deviation occurs, there being further included a comparing circuit connected to the output of said individual sensor means sensing the conditions of said individual cylinders, said comparing circuit determining when the output of said individual sensor means deviates from a predetermined magnitude representing the normal operation of an individual cylinder.