Non-pollution carburetion system for engines

Claim 2

A fuel and ignition control system for an internal combustion engine having an intake manifold and carburetor comprising high speed venturi in said carburetor at least one idle and low speed venturi in said high speed venturi, high speed throttle means for regulating the flow of air through said high speed venturi and for cutting off the flow of air therethrough, idle and low speed throttle means on said high speed throttle means for regulating the flow of air through said idle and low speed venturi and for cutting off the flow of air therethrough, means for regulating said high speed and said idle and low speed throttles, a distributor, a vacuum control means on said distributor, means connecting said vacuum control means to the intake manifold of the engine for actuating said vacuum control in response to the pressure in said intake manifold, valve means on said throttle regulating means for venting said vacuum control connecting means to the atmosphere when said throttles are at idle engine speed and for connecting said connecting means to said intake manifold when said idle and low speed throttle is opened, a dry proportioning accelerating means, means for connecting said accelerating means to said intake manifold, means for connecting said accelerating means to said carburetor, means in said accelerating means responsive to an increase in pressure in said intake manifold for forcing liquid fuel from said carburetor into the carburetor air stream in proportion to the rate of increase in pressure in said intake manifold, an air intake duct connected to the air inlet of said carburetor, a heat exchanger on said air intake duct for heating intake air passing through said duct, means for circulating coolant from the coolant pump of the engine through said heat exchanger, a thermostatically controlled valve in said coolant circulating means, means in said intake air stream for controlling said thermostatically controlled valve, fuel evaporator means connected at its upstream ends to the airfuel mixture discharge end of said carburetor, a liquid fuel recuperator connected at one of its ends to the downstream end of said evaporator and connected at its opposite end to said intake manifold, a heating jacket on said intake manifold and said evaporator, means connected to the engine coolant pump for circulating heated coolant through said heating jacket, a liquid fuel sump, means for drawing liquid fuel from said recuperator to said sump, a conduit connecting the upper end of said sump to said intake manifold, means for heating said liquid fuel drawing means and said conduit for vaporizing liquid fuel in said drawing means and for maintaining said fuel vaporized in said conduit, means for drawing the vaporized fuel from said conduit into said intake manifold and means for removing liquid fuel from the bottom of said sump.

Claim 3

A fuel and ignition control system, as recited in claim 1, in which said high speed and idle and low speed throttle means is a sliding valve.

Claim 4

A fuel and ignition control system, as recited in claim 2, in which said high speed throttle means is a throttle plate.

Claim 5

A fuel and ignition control system, as recited in claim 2, in which said idle and low speed throttle means is a throttle plate.

Claim 6

A fuel and ignition control system, as recited in claim 4, in which said high speed throttle means is a throttle plate and said idle and low speed throttle plate is mounted on said high speed throttle plate.

Claim 7

A fuel and ignition control system, as recited in claim 5, in which said high speed throttle plate is mounted for rotation in said high speed venturi in said carburetor between an open position for flow of air through said high speed venturi and a closed position for cutting off said flow of air through said high speed venturi.

Claim 8

A fuel and ignition control system, as recited in claim 6, in which said means for regulating said high speed and said idle and low speed throttle plates is a shaft, said shaft including means intermediate said high speed and said idle and low speed throttle plates and said shaft for first closing said high speed throttle plate for cutting off said flow of air through said high speed venturi and, after said high speed throttle plate is closed, then closing said idle and low speed throttle plate for cutting off the flow of air through said idle and low speed venturi as said regulating shaft is rotated in the closing direction.

Claim 9

A fuel and ignition control system, as recited in claim 7, in which said throttle plates regulating shaft includes means intermediate said throttle plates and said shaft for first closing said high speed throttle plate and then closing said idle and low speed throttle plate when said shaft is rotated in a first direction and for first opening said idle and low speed throttle plate and then opening said high speed throttle plate when said shaft is rotated in the opposite direction.

Claim 10

A fuel and ignition control system, as recited in claim 8, in which said dry proportioning accelerating means includes a housing, said means for connecting said accelerating means to said intake manifold being connected to said housing at one side of said means responsive to an increase in intake manifold pressure and said means for connecting said accelerating means to said carburetor being connected to said housing at the opposite side of said means responsive to an increase in manifold pressure.

Claim 11

A fuel and ignition control system, as recited in claim 9, in which said means responsive to an increase in manifold pressure includes a diaphragm.

Claim 12

A fuel and ignition control system, as recited in claim 10, in which said means responsive to an increase in manifold pressure includes a spring at the side of said diaphragm connected to said intake manifold.

Claim 13

A fuel and ignition control system, as recited in claim 11, in which said fuel evaporator means includes an elbow connected at its upper end to the air-fuel mixture discharge end of said carburetor and connected at its lower end to said liquid fuel recuperator and means for heating said elbow with engine coolant.

Claim 14

A fuel and ignition control system, as recited in claim 12, in which said liquid fuel recuperator includes a first section connected to the air-fuel mixture discharge end of said carburetor and a second seCtion connected to the intake manifold and means intermediate said first and second sections for trapping and removing liquid fuel flowing through said first section and for preventing said liquid fuel from flowing into said second section.

Claim 15

A fuel and ignition control system, as recited in claim 13, in which said first section includes an outwardly flared end at said intermediate means and said second section includes an enlarged end at said intermediate means, said outwardly flared end of said first section being positioned in said enlarged end of said second section and an annular housing around said flared and enlarged ends.

Claim 16

A fuel and ignition control system, as recited in claim 14, in which said means for drawing liquid fuel from said recuperator includes a line connected at one of its ends to said annular housing and connected at its opposite end to a sump.

Claim 17

A fuel and ignition control system, as recited in claim 15, in which said means for drawing liquid fuel from said recuperator further includes a one-way valve in said line connecting said annular housing and said sump.

Claim 18

A fuel and ignition control system, as recited in claim 15, in which said means for drawing liquid fuel from said recuperator further includes a venturi in said intake manifold, said conduit being connected to said venturi in said intake manifold.

Claim 19

A fuel and ignition control system, as recited in claim 15, in which said means for drawing liquid fuel from said recuperator includes a vacuum pump in said conduit connecting the upper end of said sump to said intake manifold.

Claim 20

A fuel and ignition control system, as recited in claim 15, in which said means for removing liquid fuel from the bottom of said sump includes a solenoid controlled pump.

Claim 21

A fuel and ignition control system for an internal combustion engine having an intake manifold and carburetor comprising high speed venturi in said carburetor at least one idle and low speed venturi in said high speed venturi, high speed throttle means for regulating the flow of air through said high speed venturi and for cutting off the flow of air therethrough, idle and low speed throttle means on said high speed throttle means for regulating the flow of air through said idle and low speed venturi and for cutting off the flow of air therethrough, means for regulating said high speed and said idle and low speed throttles, a distributor, a vacuum control means on said distributor, means connecting said vacuum control means to the intake manifold of the engine for actuating said vacuum control in response to the pressure in said intake manifold, and valve means on said throttle regulating means for venting said vacuum control connecting means to the atmosphere when said throttles are at idle engine speed and for connecting said connecting means to said intake manifold when said idle and low speed throttle is opened, a dry proportioning accelerating means, means for connecting said acclerating means to said intake manifold, means for connecting said acclerating means to said carburetor, and means in said accelerating means responsive to an increase in pressure in said intake manifold for forcing liquid fuel from said carburetor into the carburetor air stream in proportion to the rate of increase in pressure in said intake manifold, an air intake duct connected to the air inlet of said carburetor, a heat exchanger on said air intake duct for heating intake air passing through said duct, means for circulating coolant from the coolant pump of the engine through said heat exchanger, a thermostatically controlled valve in said coolant circulating means, means in said intake air stream for controlling said thermostatically controlled valve, fuel evaporator means connected at its upstream ends to the air-fuel mixture discharge end of said carburetor, a liquid fuel recuperator connected at one of its ends to the downstream end of said evaporator and connected at its opposite end to said intake manifold, a heating jacket on said intake Manifold and said evaporator, means connected to the engine coolant pump for circulating heated coolant through said heating jacket, a liquid fuel sump, means for drawing liquid fuel from said recuperator to said sump, a conduit connecting the upper end of said sump to said intake manifold, means for heating said liquid fuel drawing means and said conduit for vaporizing liquid fuel in said drawing means and for maintaining said fuel vaporized in said conduit, means for drawing the vaporized fuel from said conduit into said intake manifold and means for removing liquid fuel from the bottom of said sump.

Claim 22

A fuel and ignition control system for an internal combustion engine having an intake manifold and carburetor comprising high speed venturi in said carburetor at least one idle and low speed venturi in said high speed venturi, high speed throttle means for regulating the flow of air through said high speed venturi and for cutting off the flow of air therethrough, idle and low speed throttle means on said high speed throttle means for regulating the flow of air through said idle and low speed venturi and for cutting off the flow of air therethrough, means for regulating said high speed and said idle and low speed throttles, a distributor, a vacuum control means on said distributor, means connecting said vacuum control means to the intake manifold of the engine for actuating said vacuum control in response to the pressure in said intake manifold, and valve means on said throttle regulating means for venting said vacuum control connecting means to the atmosphere when said throttles are at idle engine speed and for connecting said connecting means to said intake manifold when said idle and low speed throttle is opened, a dry proportioning accelerating means, means for connecting said acclerating means to said intake manifold, means for connecting said acclerating means to said carburetor, and means in said accelerating means responsive to an increase in pressure in said intake manifold for forcing liquid fuel from said carburetor into the carburetor air stream in proportion to the rate of increase in pressure in said intake manifold, an air intake duct connected to the air inlet of said carburetor, a heat exchanger on said air intake duct for heating intake air passing through said duct, means for circulating coolant from the coolant pump of the engine through said heat exchanger, a thermostatically controlled valve in said coolant circulating means, means in said intake air stream for controlling said thermostatically controlled valve, fuel evaporator means connected at its upstream ends to the air-fuel mixture discharge end of said carburetor, a liquid fuel recuperator connected at one of its ends to the downstream end of said evaporator and connected at its opposite end to said intake manifold, a heating jacket on said intake Manifold and said evaporator, means connected to the engine coolant pump for circulating heated coolant through said heating jacket, a liquid fuel sump, means for drawing liquid fuel from said recuperator to said sump, a conduit connecting the upper end of said sump to said intake manifold, means for heating said liquid fuel drawing means and said conduit for vaporizing liquid fuel in said drawing means and for maintaining said fuel vaporized in said conduit, means for drawing the vaporized fuel from said conduit into said intake manifold and means for removing liquid fuel from the bottom of said sump.

Claim 23

A fuel and ignition control system, as recited in claim 20, in which said high speed and idle and low speed throttle means is a sliding valve.

Claim 24

A fuel and ignition control system, as recited in claim 21, in which said high speed throttle means is a throttle plate.

Claim 25

A fuel and ignition control system, as recited in claim 21, in which said idle and low speed throttle means is a throttle plate.

Claim 26

A fuel and ignition control system, as recited in claim 23, in which said high speed throttle means is a throttle plate and said idle and low speed throttle plate is mounted on said high speed throttle plate.

Claim 27

A fuel and ignition control system, as recited in claim 24, in which said high speed throttle plate is mounted for rotation in said high speed venturi in said carburetor between an open position for flow of air through said high speed venturi and a closed position for cutting off said flow of air through said high speed venturi.

Claim 28

A fuel and ignition control system, as recited in claim 25, in which said means for regulating said high speed and said idle and low speed throttle plates is a shaft, said shaft including means intermediate said high speed and said idle and low speed throttle plates and said shaft for first closing said high speed throttle plate for cutting off said flow of air through said high speed venturi and, after said high speed throttle plate is closed, then closing said idle and low speed throttle plate for cutting off the flow of air through said idle and low speed venturi as said regulating shaft is rotated in the closing direction.

Claim 29

A fuel and ignition control system, as recited in claim 26, in which said throttle plates regulating shaft includes means intermediate said throttle plates and said shaft for first closing said high speed throttle plate and then closing said idle and low speed throttle plate when said shaft is rotated in a first direction and for first opening said idle and low speed throttle plate and then opening said high speed throttle plate when said shaft is rotated in the opposite direction.

Claim 30

A fuel and ignition control system, as recited in claim 20, further including a distributor, a vacuum control means on said distributor, means connecting said vacuum control means to the intake manifold of the engine for actuating said vacuum control in response to the pressure in said intake manifold, and valve means on said throttle regulating means for venting said vacuum control connecting means to the atmosphere when said throttles are at idle engine speed and for connecting said connecting means to said intake manifold when said idle and low speed throttle is opened.

Claim 31

A fuel and ignition control system, as recited in claim 28, further including a dry proportioning accelerating means, means for connecting said accelerating means to said intake manifold, means for connecting said accelerating means to said carburetor, and means in said accelerating means responsive to an increase in pressure in said intake manifold for forcing liquid fuel from said carburetor into the carburetor air stream in proportion to the rate of increase in pressure in said intake manifold.

Claim 32

A fuel and ignition control system, as recited in claim 29, in which said dry proportioning accelerating means includes a housing, said means for connecting said accelerating means to said intake manifold being connected to said hoUsing at one side of said means responsive to an increase in intake manifold pressure and said means for connecting said accelerating means to said carburetor being connected to said housing at the opposite side of said means responsive to an increase in manifold pressure.

Claim 33

A fuel and ignition control system, as recited in claim 30, in which said means responsive to an increase in manifold pressure includes a diaphragm.

Claim 34

A fuel and ignition control system, as recited in claim 31, in which said means responsive to an increase in manifold pressure includes a spring at the side of said diaphragm connected to said intake manifold.

Claim 35

A fuel and ignition control system, as recited in claim 32, further including an air intake duct connected to the air inlet of said carburetor, a heat exchanger on said air intake duct for heating intake air passing through said duct, means for circulating coolant from the coolant pump of the engine through said heat exchanger, a thermostatically controlled valve in said coolant circulating means, means in said intake air stream for controlling said thermostatically controlled valve, fuel evaporator means connected at its upstream ends to the air-fuel mixture discharge end of said carburetor, a liquid fuel recuperator connected at one of its ends to the downstream end of said evaporator and connected at its opposite end to said intake manifold, a heating jacket on said intake manifold and said evaporator, means connected to the engine coolant pump for circulating heated coolant through said heating jacket, a liquid fuel sump, means for drawing liquid fuel from said recuperator to said sump, a conduit connecting the upper end of said sump to said intake manifold, means for heating said liquid fuel drawing means and said conduit for vaporizing liquid fuel in said drawing means and for maintaining said fuel vaporized in said conduit, means for drawing the vaporized fuel from said conduit into said intake manifold and means for removing liquid fuel from the bottom of said sump.

Claim 36

A fuel and ignition control system, as recited in claim 33, in which said fuel evaporator means includes an elbow connected at its upper end to the air-fuel mixture discharge end of said carburetor and connected at its lower end to said liquid fuel recuperator and means for heating said elbow with engine coolant.

Claim 37

A fuel and ignition control system, as recited in claim 34, in which said liquid fuel recuperator includes a first section connected to the air-fuel mixture discharge end of said carburetor and a second section connected to the intake manifold and means intermediate said first and second sections for intercepting and removing liquid fuel flowing through said first section and for preventing said liquid fuel from flowing into said second section.

Claim 38

A fuel and ignition control system, as recited in claim 35, in which said first section includes an outwardly flared end at said intermediate means and said second section includes an enlarged end at said intermediate means, said outwardly flared end of said first section being positioned in said enlarged end of said second section and an annular housing around said flared and enlarged ends.

Claim 39

A fuel and ignition control system, as recited in claim 36, in which said means for drawing liquid fuel from said recuperator includes a line connected at one of its ends to said annular housing and connected at its opposite end to said sump.

Claim 40

A fuel and ignition control system, as recited in claim 37, in which said means for drawing liquid fuel from said recuperator further includes a one-way valve in said line connecteding said annular housing and said sump.

Claim 41

A fuel and ignition control system, as recited in claim 37, in which said means for drawing liquid fuel from said recuperator further includes a venturi in said intake manifold, said conduit being connected to said venturi in said intake manifold.

Claim 42

A fuel and ignition control system, as recited in claim 37, in which said meaNs for drawing liquid fuel from said recuperator includes a vacuum pump in said conduit connecting the upper end of said sump to said intake manifold.

Claim 43

A fuel and ignition control system, as recited in claim 37, in which said means for removing liquid fuel from the bottom of said sump includes a solenoid controlled pump.

Claim 44

A fuel and ignition control system for an internal combustion engine having an intake manifold and a carburetor comprising, an air intake duct connected to the air inlet of said carburetor, a heat exchanger on said air intake duct for heating intake air passing through said duct, means for circulating coolant from the coolant pump of the engine through said heat exchanger, a thermostatically controlled valve in said coolant circulating means, means in said intake air stream for controlling said thermostatically controlled valve, fuel evaporator means connected at its upstream ends to the air-fuel mixture discharge end of said carburetor, said fuel evaporator means including an elbow connected at its upper end to the air-fuel mixture discharge end of said carburetor and connected at its lower end to said liquid fuel recuperator, a liquid fuel recuperator connected at one of its ends to the downstream end of said evaporator and connected at its opposite end to said intake manifold, said liquid fuel recuperator including a first section connected to the air-fuel mixture discharge end of said carburetor and a second section connected to the intake manifold and means intermediate said first and second sections for intercepting and removing liquid fuel flowing through said first section and for preventing said liquid fuel from flowing into said second section, said first section including an outwardly flared end at said intermediate means and said second section including an enlarged end at said intermediate means, said outwardly flared end of said first section being positioned in said enlarged end of said second section and an annular housing around said flared and enlarged ends, a heating jacket on said intake manifold and said evaporator, means connected to the engine coolant pump for circulating heated coolant through said heating jacket, a liquid fuel sump, means for drawing liquid fuel from said recuperator to said sump including a line connected at one of its ends to said annular housing and connected at its opposite end to said sump, a conduit connecting the upper end of said sump to said intake manifold, means for heating said liquid fuel drawing means and said conduit for vaporizing liquid fuel in said drawing means and for maintaining said fuel vaporized in said conduit, means for drawing the vaporized fuel from said conduit into said intake manifold and means for removing liquid fuel from the bottom of said sump.

Claim 45

A fuel and ignition control system for an internal combustion engine having an intake manifold and a carburetor comprising, an air intake duct connected to the air inlet of said carburetor, a heat exchanger on said air intake duct for heating intake air passing through said duct, means for circulating coolant from the coolant pump of the engine through said heat exchanger, a thermostatically controlled valve in said coolant circulating means, means in said intake air stream for controlling said thermostatically controlled valve, fuel evaporator means connected at its upstream ends to the air-fuel mixture discharge end of said carburetor, said fuel evaporator means including an elbow connected at its upper end to the air-fuel mixture discharge end of said carburetor and connected at its lower end to said liquid fuel recuperator, a liquid fuel recuperator connected at one of its ends to the downstream end of said evaporator and connected at its opposite end to said intake manifold, said liquid fuel recuperator including a first section connected to the air-fuel mixture discharge end of said carburetor and a second section connected to the intake manifold and means intermediate said first and second sections for intercepting and removing liquid fuel flowing through said first section and for preventing said liquid fuel from flowing into said second section, said first section including an outwardly flared end at said intermediate means and said second section including an enlarged end at said intermediate means, said outwardly flared end of said first section being positioned in said enlarged end of said second section and an annular housing around said flared and enlarged ends, a heating jacket on said intake manifold and said evaporator, means connected to the engine coolant pump for circulating heated coolant through said heating jacket, a liquid fuel sump, means for drawing liquid fuel from said recuperator to said sump including a line connected at one of its ends to said annular housing and connected at its opposite end to said sump, a conduit connecting the upper end of said sump to said intake manifold, means for heating said liquid fuel drawing means and said conduit for vaporizing liquid fuel in said drawing means and for maintaining said fuel vaporized in said conduit, means for drawing the vaporized fuel from said conduit into said intake manifold and means for removing liquid fuel from the bottom of said sump.

Claim 46

A fuel and ignition control system, as recited in claim 42, in which said means for drawing liquid fuel from said recuperator further includes a one-way valve in said line connecting said annular housing and said sump.

Claim 47

A fuel and ignition control system, as recited in claim 42, in which said means for drawing liquid fuel from said recuperator further includes a venturi in said intake manifold, said conduit being connected to said venturi in said intake manifold.

Claim 48

A fuel and ignition control system, as recited in claim 42, in which said means for drawing liquid fuel from said recuperator includes a vacuum pump in said conduit connecting the upper end of said sump to said intake manifold.