US3908613A — Method of feeding an internal combustion engine a…

Claim 1

Independent Claim 198 words

A dual injector mechanism for feeding a cylinder of an internal combustion engine comprising: a dual injector body having a conical seat; a fuel inlet; a fuel passage formed in the body; a detonation inhibitor inlet; a detonation inhibitor passage formed in the body and parallel to the fuel passage; a single needle mounted in the body and having a head received in the seat; means for moving the needle; a lubricating oil inlet formed in the body; a lubricating oil discharge orifice formed in the body; a first bearing surface formed on the needle; a second bearing surface formed on the needle and spaced apart from the first bearing surface; and wherein each of the passages has a calibrated orifice formed behind the head and at different levels from the seat, the single needle near-simultaneously uncovering both orifices to deliver a homogeneous atomized mixture of fuel and inhibitor to the cylinder when at the bottom of its stroke, and the two bearing surfaces define an oil inlet space, one of the bearing surfaces being disposed behind the head portion of the injector needle which uncovers the oil discharge orifice when the injector is in its shut-off position.

Claim 2

Dependent Claim 198 words

A dual injector mechanism for feeding a cylinder of an internal combustion engine comprising: a dual injector body having a conical seat; a fuel inlet; a fuel passage formed in the body; a detonation inhibitor inlet; a detonation inhibitor passage formed in the body and parallel to the fuel passage; a single needle mounted in the body and having a head received in the seat; means for moving the needle; a lubricating oil inlet formed in the body; a lubricating oil discharge orifice formed in the body; a first bearing surface formed on the needle; a second bearing surface formed on the needle and spaced apart from the first bearing surface; and wherein each of the passages has a calibrated orifice formed behind the head and at different levels from the seat, the single needle near-simultaneously uncovering both orifices to deliver a homogeneous atomized mixture of fuel and inhibitor to the cylinder when at the bottom of its stroke, and the two bearing surfaces define an oil inlet space, one of the bearing surfaces being disposed behind the head portion of the injector needle which uncovers the oil discharge orifice when the injector is in its shut-off position.

Claim 3

Dependent Claim 37 words

A mechanism as claimed in claim 1 wherein the injector is lubricated by oil circulation and which includes means for injecting fuel and detonation inhibitor at a constant pressure independent of the rotational speed of the engine.

Claim 4

Dependent Claim 86 words

A mechanism for feeding an internal combustion engine comprising a dual injector having a single injector needle which near-simultaneously uncovers a calibrated fuel inlet orifice and a calibrated detonation inhibitor inlet orifice, the injector needle being lubricated by oil circulation, and wherein the injector needle includes two spaced apart grooved bearing surfaces which define an oil inlet space, one of said surfaces being disposed behind a head portion of the injector needle whIch uncovers an oil discharge orifice when the injector is in its shut-off position.

Claim 5

Dependent Claim 86 words

A mechanism for feeding an internal combustion engine comprising a dual injector having a single injector needle which near-simultaneously uncovers a calibrated fuel inlet orifice and a calibrated detonation inhibitor inlet orifice, the injector needle being lubricated by oil circulation, and wherein the injector needle includes two spaced apart grooved bearing surfaces which define an oil inlet space, one of said surfaces being disposed behind a head portion of the injector needle whIch uncovers an oil discharge orifice when the injector is in its shut-off position.

Claim 6

Dependent Claim 31 words

A mechanism as claimed in claim 1, including a dual-body pump driven by a single independent motor which delivers the fuel and the detonation inhibitor to the injectors at constant pressures.

Claim 7

Dependent Claim 64 words

A mechanism as claimed in claim 4, wherein the injectors are actualated by individual mechanisms comprising means defining slotted slideways for determining the degree of needle travel, said means defining the slotted slideways move responsively to the joint actions of associated cam lobes on a camshaft of the internal combustion engine and means for adjusting the position of slides movable within said slotted slideways.

Claim 8

Dependent Claim 27 words

A mechanism as claimed in claim 5, wherein includes the slide adjusting means include actuating means dependent upon an degree of aperture of the oxidizer inlet butterfly-valve.

Claim 9

Dependent Claim 69 words

A mechanism as claimed in claim 6, wherein said slide adjusting means includes a first diaphragm-box communicating with depression sensing means having a port inside a manifold upstream of the oxidizer inlet butterfly-valve and controlling means for instantly returning said slides to a position in which the injection needles cannot be actuated when, upon closure of said butterfly-valve, the depression sensed by said second diaphragm-box exceeds a predetermined value.

Claim 10

Dependent Claim 15 words

A mechanism as defined in claim 2 wherein the bearing surfaces are grooved bearing surfaces.

Claim 11

Independent Claim 115 words

A method of feeding the cylinders of an internal combustion engine, which comprises: injecting a fuel in a predetermined direction into the cylinder of the internal combustion engine at a point in time when a piston operatively associated in the cylinder is at the bottom of its stroke; at the same time and together with the injecting of the fuel injecting a detonation inhibitor in admixture with an oxidizer into the cylinder of the internal combustion engine in the same predetermined direction in which the fuel is injected; and wherein injection of the fuel and detonation inhibitor and oxidizer admixture is carried out at a constant pressure independent of the rotational speed of the engine.

Claim 12

Independent Claim 115 words

A method of feeding the cylinders of an internal combustion engine, which comprises: injecting a fuel in a predetermined direction into the cylinder of the internal combustion engine at a point in time when a piston operatively associated in the cylinder is at the bottom of its stroke; at the same time and together with the injecting of the fuel injecting a detonation inhibitor in admixture with an oxidizer into the cylinder of the internal combustion engine in the same predetermined direction in which the fuel is injected; and wherein injection of the fuel and detonation inhibitor and oxidizer admixture is carried out at a constant pressure independent of the rotational speed of the engine.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1978-09-29	1979-03-31	1979-09-30	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1982-09-29	1983-03-31	1983-09-30	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1986-09-29	1987-03-31	1987-09-30	$7700.00	Window Closed / Lapsed

Method of feeding an internal combustion engine and improved apparatus for performing the same

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