High pressure direct injected gaseous fuel system and retrofit kit incorporating the same
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F02D-041/00
F02M-067/00
F02M-021/02
F02M-069/46
출원번호
US-0829193
(2013-03-14)
등록번호
US-9194337
(2015-11-24)
발명자
/ 주소
McAlister, Roy Edward
Hoekstra, Kraig
Kemmet, Ryan
Grottenthaler, David
Wright, Dustin
출원인 / 주소
ADVANCED GREEN INNOVATIONS, LLC
대리인 / 주소
Loeb & Loeb LLP
인용정보
피인용 횟수 :
3인용 특허 :
259
초록▼
A high-pressure direct injected gaseous fuel system comprising a fuel tank capable of storing fuel at a first pressure and a compressor including an inlet capable of receiving the fuel, and operative to supply, at an outlet, compressed fuel at a second pressure higher than the first. The system also
A high-pressure direct injected gaseous fuel system comprising a fuel tank capable of storing fuel at a first pressure and a compressor including an inlet capable of receiving the fuel, and operative to supply, at an outlet, compressed fuel at a second pressure higher than the first. The system also includes an accumulator connected to the outlet and a plurality of injectors connected to the accumulator. The injectors are adapted to inject fuel directly into a combustion chamber. The system includes a pressure relief valve interconnecting the fuel tank and the outlet, wherein the pressure relief valve is operative to allow fuel flow between the fuel tank and outlet if the second pressure exceeds a threshold pressure.
대표청구항▼
1. A high-pressure direct injected gaseous fuel system, comprising: a fuel tank capable of storing fuel at a first pressure;a compressor comprising an inlet capable of receiving the fuel, and operative to supply, at an outlet, the fuel at a second pressure higher than the first pressure;an accumulat
1. A high-pressure direct injected gaseous fuel system, comprising: a fuel tank capable of storing fuel at a first pressure;a compressor comprising an inlet capable of receiving the fuel, and operative to supply, at an outlet, the fuel at a second pressure higher than the first pressure;an accumulator in fluid communication with the outlet to receive and to store the compressed gaseous fuel from the compressor and in fluid communication with the inlet through a pressure regulator to convey excess compressed gaseous fuel to the compressor;a pressure relief valve interconnecting the fuel tank and the outlet, and operative to allow fuel flow between the fuel tank and outlet if the second pressure exceeds a threshold pressure; anda plurality of injectors connected to the accumulator, wherein the injectors are adapted to inject the fuel directly into a combustion chamber. 2. The system of claim 1, wherein the compressor further comprises a blow-by vent in fluid communication with the compressor and an air intake of the engine to vent excess gaseous fuel within the compressor due to compressor blow-by and leakage directly to the air intake. 3. The system of claim 1, wherein the injector comprises an injector-igniter. 4. The system of claim 1, further comprising an engine driven hydraulic pump connected to the compressor. 5. A high-pressure direct injected gaseous fuel system, comprising: a fuel tank capable of storing fuel at a first pressure;a compressor comprising an inlet capable of receiving the fuel, and operative to supply, at an outlet, the fuel at a second pressure higher than the first pressure;an accumulator in fluid communication with the outlet to receive and to store the compressed gaseous fuel from the compressor and in fluid communication with the inlet through a pressure regulator to convey excess compressed gaseous fuel to the compressor;a plurality of injector-igniters connected to the accumulator, wherein the injector-igniters are adapted to inject the fuel directly into a combustion chamber; anda pressure relief valve interconnecting the fuel tank and the outlet, and operative to allow fuel flow between the fuel tank and outlet if the second pressure exceeds a threshold pressure. 6. The system of claim 5, wherein the compressor further comprises a blow-by vent in fluid communication with the compressor and an air intake of the engine to vent excess gaseous fuel within the compressor due to compressor blow-by and leakage directly to the air intake. 7. The system of claim 5, wherein the compressor is powered by a hydraulic pump driven by the engine. 8. A high-pressure direct injected gaseous fuel system retrofit kit, comprising: a compressor comprising an inlet capable of receiving fuel at a first pressure, and operative to supply, at an outlet, the fuel at a second pressure higher than the first pressure, the compressor further comprising a blow-by vent connectable to an intake of an engine;an engine drivable hydraulic pump, operative to provide power to the compressor;an accumulator in fluid communication with the outlet to receive and to store the compressed gaseous fuel from the compressor and in fluid communication with the inlet through a pressure regulator to convey excess compressed gaseous fuel to the compressor; anda plurality of injectors connectable to the accumulator, wherein the injectors are adapted to inject the fuel directly into a combustion chamber. 9. The retrofit kit of claim 8, further comprising a pressure relief valve interconnectable to a fuel tank and the outlet, and operative to allow fuel flow between the fuel tank and outlet if the second pressure exceeds a threshold pressure. 10. The retrofit kit of claim 8, further comprising a fuel tank capable of storing fuel at a first pressure and connectable to the compressor. 11. The retrofit kit of claim 8, wherein the injectors comprise injector-igniters. 12. The retrofit kit of claim 8, wherein the hydraulic pump is engine mountable. 13. The retrofit kit of claim 12, wherein the hydraulic pump is adapted to mount in place of an engine mounted fuel pump. 14. The retrofit kit of claim 8, further comprising a pressure regulator connectable between the accumulator and the plurality of injectors. 15. A high-pressure direct injected gaseous fuel system, comprising: a fuel tank capable of storing gaseous fuel at a first pressure;a compressor in fluid communication with the fuel tank, wherein the compressor comprises an inlet capable of receiving the gaseous fuel from the fuel tank, and operative to supply, at an outlet, compressed gaseous fuel at a second pressure higher than the first pressure;an accumulator in fluid communication with the outlet to receive and to store the compressed gaseous fuel from the compressor and in fluid communication with the inlet through a pressure regulator to convey excess compressed gaseous fuel to the compressor;a plurality of injectors in fluid communication with the accumulator, wherein the plurality of injectors are adapted to inject the compressed gaseous fuel from the accumulator directly into a combustion chamber of an engine;a blow-by vent in fluid communication with the compressor and an air intake of the engine to vent excess gaseous fuel within the compressor due to compressor blow-by and leakage directly to the air intake; anda blow-by flow meter in communication with the blow-by vent and an engine communication module, such that the engine control module can adjust amount of the compressed gaseous fuel from the accumulator injected by the plurality of injectors into the combustion chamber of the engine to account for the excess compressed gaseous fuel directly vented to the air intake from the blow-by vent. 16. The system of claim 15, wherein the injector comprises an injector-igniter. 17. The system of claim 15, further comprising an engine driven hydraulic pump connected to the compressor. 18. The system of claim 15, further comprising a pressure relief valve interconnectable to the fuel tank and the outlet, and operative to allow fuel flow between the outlet and the fuel tank if the second pressure exceeds a threshold pressure. 19. The system of claim 15, further comprising a pressure regulator connectable between the accumulator and the plurality of injectors.
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