EP0060656A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Gaseous fuel and air metering device for an internal-combustion engine
Assignee: Individual
•
Filing: 1982-03-05
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Granted: —
•
Expires: 2002-03-05
Abstract
Abstract A device (10, 12) to meter and control the flow of a gaseous fuel and air to an internal combustion engine. The portion of the device which controls the flow of gaseous fuel comprises a reservoir chamber (16) linked to a pressurised fuel supply, a plurality of individual chambers (20) equal in number to the number of engine cylinders, demand valves (24) connected to the individual chambers which permit fuel to flow on the intake stroke of each cylinder and valves (18) biased to a closed position between each individual chamber (20) and the reservoir (16) for controlling the flow of gaseous fuel to the individual chambers and a connection (32, 28) for linking the valves to the throttle of the engine to open the valves simultaneously. The portion (12) of the device for controlling air flow to the engine cylinders comprises an air control (38) connected to the engine throttle and to the fuel control portion (10) of the device to regulate entry of the air to the engine manifold, and one-way air valves (112) associated with each cylinder to allow air to enter the cylinder on the intake stroke of the cylinder.
Inventors
- 👤 Wayne Arthur Swanson
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-30 07:42
CPC Classifications
F; F02; F02M; F02M21/00; F02M21/02; F02M21/0218; F02M21/023; F02M21/0239; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/30
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
171 words
A device (10) for controlling the flow of a gaseous fuel to an internalcombustion engine, said engine having a plurality of cylinders, and operable in conjunction with apparatus (12) to control the flow of air to said cylinders, said device being characterised by (a) a reservoir(16)having an inlet(14)for receiving gaseous fuel under pressure; (b) a plurality of chambers(20) equal in number to the number of said cylinders, each of said chambers being in individual fluid communication with said reservoir; (c) means (24, 26) for separately connecting each of said chambers(20)to a respective one of said cylinders; (d) individual valve means 18 biased (44) to a closed position for controlling the fluid communication between said chambers and said reservoir; (e) means (32, 23, 30), suitable for connection with the throttle of said engine for simultaneously opening said valve means (18) against said bias in response to actuation of said throttle; and (f) means (47, 42, 40) connectable with said air control apparatus (12) for regulating the flow of air to said engine.
Claim 2
Independent Claim
171 words
A device (10) for controlling the flow of a gaseous fuel to an internalcombustion engine, said engine having a plurality of cylinders, and operable in conjunction with apparatus (12) to control the flow of air to said cylinders, said device being characterised by (a) a reservoir(16)having an inlet(14)for receiving gaseous fuel under pressure; (b) a plurality of chambers(20) equal in number to the number of said cylinders, each of said chambers being in individual fluid communication with said reservoir; (c) means (24, 26) for separately connecting each of said chambers(20)to a respective one of said cylinders; (d) individual valve means 18 biased (44) to a closed position for controlling the fluid communication between said chambers and said reservoir; (e) means (32, 23, 30), suitable for connection with the throttle of said engine for simultaneously opening said valve means (18) against said bias in response to actuation of said throttle; and (f) means (47, 42, 40) connectable with said air control apparatus (12) for regulating the flow of air to said engine.
Claim 3
Dependent Claim
64 words
A device according to claim 1, characterised in that the means for separately connecting said chambers (20) to said cylinders comprise outlets to said chambers, a line (26) capable of conducting gaseous fuel connected to each of said outlets (22), and individual demand valves (24) located at a point between the outlets (22) of said chambers and the inlet port (110) of said cylinders.
Claim 4
Dependent Claim
27 words
A device according to claim 2, characterised in that the demand valves (24) operate in response to a suction created by the intake stroke of said cylinders.
Claim 5
Independent Claim
50 words
A device according to any one of claims 1 to 3, characterised in that the individual valve means (18) comprise ports (21) between said reservoir (16) and said individual chambers (20), valve seats (19) located in said ports and valve seals (23) for controlling fluid flow through said valve seats.
Claim 6
Dependent Claim
52 words
A device according to claim 4, characterised in that said valve seals (23) are rods (29) each having one frusto-conical shaped end (23) for seating in said valve, seats to form a fluid-tight seal and one end (30) adapted as an adjustment mechanism to control the seating of the frusto-conical shaped end.
Claim 7
Dependent Claim
65 words
A device according to claim 5, characterised in that the adjustment mechanism comprises a spring (46) surrounding the upper end of each of said valve seals (23), adjusting nuts (30) on each valve seal and a plate (28) having holes aligned with the ends of said valve seals, said valve seals (23) passing through said plate and supporting said plate between the adjusting nuts (30).
Claim 8
Independent Claim
53 words
A device according to claims 1 ) characterised in that said means connectable to the throttle comprises a plate (28) with holes registering with valve seal ends of said individual valve means (18), means (30) for securing said plate (28) to said valve seal ends, and a cable (32) attached to said plate.
Claim 9
Dependent Claim
54 words
A device according to claim 7, characterised in that the means for securing said plate (28) to said valve seal ends is a threaded portion of said valve seal and an adjustment nut (30) on said valve seal end below said plate and an adjustment nut (30) on said valve seal above said plate.
Claim 10
Dependent Claim
21 words
A device according to claim 8, characterised by an adjustable linkage (34, 30) for attaching the cable (32) to said plate.
Claim 11
Dependent Claim
53 words
A device according to claim 9, characterised in that the adjustable linkage comprises a plate (28) having a hole,/threaded rod (34) secured in said hole by nuts (36) on said rod above and below said plate and a fitting on one end of the rod to which a cable (32) may be secured.
Claim 12
Dependent Claim
23 words
A device according to claim 7, characterised in that said means connectable with said air control apparatus is constituted by said cable (32).
Claim 13
Independent Claim
169 words
A device for controlling the flow of gaseous fuel to an internal combustion engine utilizing a plurality of cylinders s which engine operates on a mixture of said gaseous fuel and air,the device being characterised by: (a) a reservoir (16) having an inlet (14) for receiving a pressurized gaseous fuel: (b) a plurality of chambers (20) equal in number to said plurality of cylinders, said chambers(20) being in individual fluid communication with said reservoir; (c) a plurality of demand valves (24), single ones of which are connected to each of said chambers (20) and to individual cylinders; (d) individual valve means (18) biased to a closed position for controlling communication of said gaseous fuel from said reservoir (16) to said individual chambers (2); (e) means (32, 28, 30) connectable with the throttle of the engine for simultaneously opening said valve means(18)against said bias; and (f) means (47, 42, 40) connectable with an air control device (12), said air control device (12) metering air to be mixed with said fuel.
Claim 14
Independent Claim
169 words
A device for controlling the flow of gaseous fuel to an internal combustion engine utilizing a plurality of cylinders s which engine operates on a mixture of said gaseous fuel and air,the device being characterised by: (a) a reservoir (16) having an inlet (14) for receiving a pressurized gaseous fuel: (b) a plurality of chambers (20) equal in number to said plurality of cylinders, said chambers(20) being in individual fluid communication with said reservoir; (c) a plurality of demand valves (24), single ones of which are connected to each of said chambers (20) and to individual cylinders; (d) individual valve means (18) biased to a closed position for controlling communication of said gaseous fuel from said reservoir (16) to said individual chambers (2); (e) means (32, 28, 30) connectable with the throttle of the engine for simultaneously opening said valve means(18)against said bias; and (f) means (47, 42, 40) connectable with an air control device (12), said air control device (12) metering air to be mixed with said fuel.
Claim 15
Dependent Claim
128 words
A gaseous fuel control device according to any one of the preceding claims, including means for separately regulating and delivering air to the engine cylinders, said regulating and delivering means being characterised by: (a) an intake manifold (102) on said engine, said manifold having an opening (108) through which it may admit air; (b) an air flap (38) to control the admission of air through said opening, said air flap being connectable to the throttle of said engine and connectable to said fuel control device; (c) air conduits (110, 114) from said manifold to said cylinders; and (d) one-way air valves (112) openable by suction positioned in said conduits to allow air to be pulled from said manifold into said cylinders on the intake strokes of said cylinders.
Claim 16
Dependent Claim
38 words
A device according to claim 13, characterised in that the opening (108) to the intake manifold has positioned about it a fitting (106) which is substantially airtight and connectable to a conduit containing the air flap means (38).
Claim 17
Dependent Claim
49 words
A device according to claim 13, characterised in that the air flap means is a plate, mounted on a rotatable shaft (40) in an air inlet conduiticonnectable to said manifold (102) and positioned so that the rotation of said shaft 40) causes the air flap to open and close.
Claim 18
Dependent Claim
30 words
A device according to claim 15, characterised in that the rotatable shaft (40) has a drum (42) at one end, said drum supporting a cable (47) connectable to said throttle.
Claim 19
Dependent Claim
26 words
A device according to claim 15, characterised in that said plate (38) has secured to it a cable (32) connectable to said fuel regulating device (10).
References Cited (Backward Citations)
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