A pre-chamber fuel admission valve includes a fuel inlet, a fuel outlet, an actuated valve, and a check valve. The fuel inlet receives a supply of a fuel. The fuel outlet delivers the fuel to a pre-chamber. The actuated valve is between and in fluid communication with the fuel inlet and the fuel out
A pre-chamber fuel admission valve includes a fuel inlet, a fuel outlet, an actuated valve, and a check valve. The fuel inlet receives a supply of a fuel. The fuel outlet delivers the fuel to a pre-chamber. The actuated valve is between and in fluid communication with the fuel inlet and the fuel outlet. The actuated valve controls a flow of the fuel from the fuel inlet to the fuel outlet. The check valve is biased in a closed position and between and in fluid communication with the actuated valve and the fuel outlet. The check valve is configured to open and allow the fuel to exit the fuel outlet in response to a fuel pressure exceeding a pre-chamber pressure plus a bias pressure, and the check valve is configured to close in response to the pre-chamber pressure plus the bias pressure exceeding the fuel pressure.
대표청구항▼
1. A pre-chamber fuel admission valve comprising: a fuel inlet configured to receive a supply of a fuel;a fuel outlet configured to deliver the fuel to a pre-chamber;an actuated valve disposed between and in fluid communication with the fuel inlet and the fuel outlet, the actuated valve being config
1. A pre-chamber fuel admission valve comprising: a fuel inlet configured to receive a supply of a fuel;a fuel outlet configured to deliver the fuel to a pre-chamber;an actuated valve disposed between and in fluid communication with the fuel inlet and the fuel outlet, the actuated valve being configured to control a flow of the fuel from the fuel inlet to the fuel outlet, the actuated valve including a plunger; anda check valve disposed between and in fluid communication with the actuated valve and the fuel outlet, the check valve being biased in a closed position, the check valve including an assembly,wherein the actuated valve opens by moving the plunger inwardly relative to the pre-chamber fuel admission valve to prevent leakage of fuel into the pre-chamber, andwherein the check valve opens by moving the assembly outwardly relative to the pre-chamber fuel admission valve to prevent backflow into the pre-chamber fuel admission valve,wherein the check valve is configured to open and allow the fuel to exit the fuel outlet in response to a fuel pressure exceeding a pre-chamber pressure plus a bias pressure, and the check valve is configured to close in response to the pre-chamber pressure plus the bias pressure exceeding the fuel pressure. 2. The pre-chamber fuel admission valve according to claim 1, further comprising: an annular sealing surface disposed about the fuel outlet; anda conical sealing member configured to mate with the annular sealing surface to close the check valve. 3. The pre-chamber fuel admission valve according to claim 2, further comprising a pintle assembly configured to translate axially within a check valve central bore, the pintle assembly including a pintle shaft with the conical sealing member disposed at a distal end of the pintle shaft. 4. The pre-chamber fuel admission valve according to claim 3, further comprising: a stop plate disposed in the check valve and defining a stop plate bore therethrough, the pintle shaft extending through the stop plate bore; anda valve stop disposed at a proximal end of the pintle shaft, wherein a full open position of the check valve is defined by a position of the pintle shaft relative to the valve stop at which the valve stop contacts the stop plate. 5. The pre-chamber fuel admission valve according to claim 4, further comprising: a nose piece having an outlet bore and an interior bearing surface, the outlet bore having a surface defining a pintle shaft passageway configured to allow the pintle shaft to translate along a longitudinal axis of the pintle shaft passageway;a spring plate disposed in the check valve, the spring plate being secured to the pintle shaft; anda biasing member disposed between the spring plate and the interior bearing surface of the nose piece. 6. The pre-chamber fuel admission valve according to claim 1, wherein the actuated valve is controlled to form an actuated valve seal to stop the flow of the fuel from the fuel inlet to the fuel outlet, and wherein a closing force exerted on the actuated valve seal is equal to a closing force of the actuated valve plus a difference between an upstream fuel pressure and a downstream fuel pressure. 7. The pre-chamber fuel admission valve according to claim 6, wherein the pre-chamber fuel admission valve is configured to prevent leakage of the fuel through the actuated valve, and the pre-chamber fuel admission valve is configured to prevent a backflow through the check valve in a direction from the fuel outlet toward the fuel inlet. 8. A pre-chamber fuel admission valve comprising: a fuel inlet configured to receive a supply of a fuel;a fuel outlet configured to deliver the fuel to a pre-chamber;an inward opening valve disposed between and in fluid communication with the fuel inlet and the fuel outlet, the inward opening valve being configured to control a flow of the fuel from the fuel inlet to the fuel outlet;an actuator configured to operate the inward opening valve in response to a signal; andan outward opening valve disposed downstream of the inward opening valve and in fluid communication with the inward opening valve, the outward opening valve being biased in a closed position,wherein the inward opening valve opens inwardly relative to the pre-chamber fuel admission valve to prevent leakage of fuel into a pre-chamber, andwherein the outward opening valve opens outwardly relative to the pre-chamber fuel admission valve to prevent backflow into the pre-chamber fuel admission valve. 9. The pre-chamber fuel admission valve according to claim 8, wherein a closing force acting on the inward opening valve is provided by a positive delta pressure of an upstream fuel pressure relative to a downstream fuel pressure. 10. The pre-chamber fuel admission valve according to claim 8, wherein the outward opening valve is configured to automatically close in response to a pre-chamber pressure plus a bias pressure exceeding a fuel pressure. 11. The pre-chamber fuel admission valve according to claim 8, further comprising: an annular sealing surface disposed about the fuel outlet; anda conical sealing member configured to mate with the annular sealing surface to close the outward opening valve. 12. The pre-chamber fuel admission valve according to claim 11, further comprising: a pintle assembly configured to translate longitudinally within an outward opening valve central bore, the pintle assembly including a pintle shaft with the conical sealing member disposed at a distal end of the pintle shaft. 13. The pre-chamber fuel admission valve according to claim 8, wherein the actuator is a solenoid. 14. A pre-chamber ignition system for pre-ignition, the pre-chamber ignition system comprising: a pre-chamber;a pre-chamber spark plug to ignite a pre-chamber charge mixture including a fuel;a pre-chamber passageway to fluidly connect the pre-chamber to a main combustion chamber; anda pre-chamber fuel admission valve to inject the fuel into the pre-chamber, the pre-chamber fuel admission valve including: a fuel inlet configured to receive a supply of the fuel;a fuel outlet configured to deliver the fuel to the pre-chamber;an actuated valve disposed between and in fluid communication with the fuel inlet and the fuel outlet, the actuated valve being configured to control a flow of the fuel from the fuel inlet to the fuel outlet; anda check valve disposed between and in fluid communication with the actuated valve and the fuel outlet, the check valve being biased in a closed position,wherein the actuated valve opens inwardly relative to the pre-chamber fuel admission valve to prevent leakage of fuel into the pre-chamber, andwherein the check valve opens outwardly relative to the pre-chamber fuel admission valve to prevent backflow into the pre-chamber fuel admission valve,wherein the check valve is configured to open and allow the fuel to exit the fuel outlet in response to a fuel pressure exceeding a pre-chamber pressure plus a bias pressure, and the check valve is configured to close in response to the pre-chamber pressure plus the bias pressure exceeding the fuel pressure. 15. The pre-chamber ignition system according to claim 14, further comprising: an annular sealing surface disposed about the fuel outlet; anda conical sealing member configured to mate with the annular sealing surface to close the check valve. 16. The pre-chamber ignition system according to claim 15, further comprising a pintle assembly configured to translate axially within a check valve central bore, the pintle assembly including a pintle shaft with the conical sealing member disposed at a distal end of the pintle shaft. 17. The pre-chamber ignition system according to claim 16, further comprising: a stop plate disposed in the check valve and defining a stop plate bore therethrough, the pintle shaft extending through the stop plate bore; anda valve stop disposed at a proximal end of the pintle shaft,wherein a check valve full open position is defined by a position of pintle shaft translation at which the valve stop contacts the stop plate. 18. The pre-chamber ignition system according to claim 17, further comprising: a nose piece having an outlet bore and an interior bearing surface, the outlet bore having a surface defining a pintle shaft passageway configured to allow the pintle shaft to translate along;a spring plate disposed in the check valve, the spring plate being secured to the pintle shaft; anda biasing member disposed between the spring plate and the interior bearing surface of the nose piece. 19. The pre-chamber ignition system according to claim 14, wherein the actuated valve is controlled to form an actuated valve seal to stop the flow of the fuel from the fuel inlet to the fuel outlet and wherein a closing force exerted on the actuated valve seal is equal to a closing force of the actuated valve plus a difference between an upstream fuel pressure and a downstream fuel pressure. 20. The pre-chamber ignition system according to claim 19, wherein the pre-chamber fuel admission valve is configured to prevent leakage of the fuel through the actuated valve and the pre-chamber fuel admission valve is configured to prevent a backflow through the check valve.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (10)
Peter Steinruck AT; Franz Paset AT, Check valve controlled by differential pressure.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.