KR970035612A - Fuel supply of natural gas vehicles - Google Patents
Fuel supply of natural gas vehicles Download PDFInfo
- Publication number
- KR970035612A KR970035612A KR1019950060123A KR19950060123A KR970035612A KR 970035612 A KR970035612 A KR 970035612A KR 1019950060123 A KR1019950060123 A KR 1019950060123A KR 19950060123 A KR19950060123 A KR 19950060123A KR 970035612 A KR970035612 A KR 970035612A
- Authority
- KR
- South Korea
- Prior art keywords
- fuel
- pressure
- pipe
- natural gas
- supplied
- Prior art date
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Abstract
본 발명은 천연가스를 연료로 사용하는 차량의 엔진에 연료를 공급하는 장치에 관한 것으로, 연료의 공급원인 실린더와, 상기 실린더로부터 엔진에 이르도록 설치된 연료 파이프와, 상기 연료 파이프에 순차적으로 장착되는 압력계, 차단밸브, 압력 강하용 레귤레이터 및 퓨얼 레일과, 상기 퓨얼 레일에 연결되어 공급되는 연료를 엔진의 실린더에 분사하는 수개의 인젝터를 포함하는 천연가스 자동차의 연료 공급장치에 있어서, 상기 인젝터의 분사량 보다 많은 양의 연료가 공급되는 경우 여분의 연료를 바이 패쓰시켜 연료 파이프로 리턴시키기 위한 수단을 구비하여 연료파이프내의 압력 상승을 방지하도록 구성한 것이다. 상기 연료 리턴수단은 퓨얼 레일으로부터 레귤레이터 후방단의 연료 파이프에 이르도록 연결, 설치되어 여분의 연료를 바이 패쓰시키는 바이 패쓰 라인과, 상기 바이 패쓰 라인에 설치되어 바이 패쓰되는 연료의 압력을 연료 파이프내의 압력 이상으로 높이는 가압 펌프와, 상기 가압 펌프의 구동원인 배터리로 구성되어 있다. 이와 같은 본 발명의 연료 공급장치에 의하면, 인젝터의 분사량보다 많은 양의 연료가 공급되는 경우, 여분의 연료가 바이 패쓰 라인을 통하여 바이 패쓰되고, 또 경우에 따라서는 보조 실린더에 저장되었다가 필요시 재공급되므로 종래와 같은 압력 상승을 방지할 수 있고, 레귤레이터로부터 인젝터 라인까지의 압력을 일정하게 유지시킬 수 있다.The present invention relates to a device for supplying fuel to an engine of a vehicle using natural gas as a fuel. A fuel supply apparatus for a natural gas vehicle, comprising: a pressure gauge, a shutoff valve, a pressure drop regulator, a fuel rail, and several injectors connected to the fuel rail to inject fuel supplied to a cylinder of an engine, wherein the injection amount of the injector When a larger amount of fuel is supplied, a means for bypassing the excess fuel and returning it to the fuel pipe is configured to prevent a pressure increase in the fuel pipe. The fuel return means is connected to a fuel pipe at the rear end of the regulator by a fuel rail and a bypass path for bypassing excess fuel, and a pressure of a fuel installed in the bypass path to bypass the fuel path. It consists of a pressure pump which raises more than a pressure, and the battery which is a drive source of the said pressure pump. According to the fuel supply apparatus of the present invention, when a larger amount of fuel is supplied than the injection amount of the injector, the excess fuel is bypassed through the bypass path, and in some cases, stored in the auxiliary cylinder when necessary. The resupply can prevent the conventional pressure rise and keep the pressure from the regulator to the injector line constant.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
제2도는 본 발명에 의한 연료 공급장치의 일 실시례를 보인 계통도.2 is a system diagram showing an embodiment of a fuel supply device according to the present invention.
제3도는 본 발명에 의한 연료 공급장치의 다른 실시례를 보인 계통도.3 is a system diagram showing another embodiment of a fuel supply device according to the present invention.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950060123A KR970035612A (en) | 1995-12-28 | 1995-12-28 | Fuel supply of natural gas vehicles |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950060123A KR970035612A (en) | 1995-12-28 | 1995-12-28 | Fuel supply of natural gas vehicles |
Publications (1)
Publication Number | Publication Date |
---|---|
KR970035612A true KR970035612A (en) | 1997-07-22 |
Family
ID=66620906
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019950060123A KR970035612A (en) | 1995-12-28 | 1995-12-28 | Fuel supply of natural gas vehicles |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR970035612A (en) |
-
1995
- 1995-12-28 KR KR1019950060123A patent/KR970035612A/en not_active Application Discontinuation
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Legal Events
Date | Code | Title | Description |
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A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E601 | Decision to refuse application |