KR100223538B1 - Hydrogen Fuel Supply Control System of Hydrogen Fuel Engine - Google Patents
Hydrogen Fuel Supply Control System of Hydrogen Fuel Engine Download PDFInfo
- Publication number
- KR100223538B1 KR100223538B1 KR1019950049597A KR19950049597A KR100223538B1 KR 100223538 B1 KR100223538 B1 KR 100223538B1 KR 1019950049597 A KR1019950049597 A KR 1019950049597A KR 19950049597 A KR19950049597 A KR 19950049597A KR 100223538 B1 KR100223538 B1 KR 100223538B1
- Authority
- KR
- South Korea
- Prior art keywords
- hydrogen fuel
- high pressure
- pressure regulator
- engine
- fuel supply
- Prior art date
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 43
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 39
- 239000001257 hydrogen Substances 0.000 title claims abstract description 39
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 38
- 238000002347 injection Methods 0.000 abstract description 4
- 239000007924 injection Substances 0.000 abstract description 4
- 150000002431 hydrogen Chemical class 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/023—Valves; Pressure or flow regulators in the fuel supply or return system
- F02M21/0239—Pressure or flow regulators therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0203—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels characterised by the type of gaseous fuel
- F02M21/0206—Non-hydrocarbon fuels, e.g. hydrogen, ammonia or carbon monoxide
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
본원 발명의 목적은 엔진의 운전 조건에 따라 적절히 분사 압력을 전환하여 사용할 수 있는 수소 연료공급 제어장치를 제공하는데 있다.An object of the present invention is to provide a hydrogen fuel supply control device that can be used by switching the injection pressure appropriately according to the operating conditions of the engine.
상기한 목적을 달성하기 위한 본원 발명의 수단은 수소 연료를 저장하는 고압 용기와, 상기 고압용기로부터 급송되는 수소 연료를 분사하는 인젝터와, 상기 수소 연료의 공급량을 조절하기 위한 고압용 레귤레이터와로 구성되는 수소 연료 공급장치에 있어서, 상기 고압용 레귤레이터와 병렬로 접속되며 엔진 운전 조건에 따라 상기 고압용 레귤레이터와 선택적으로 전환 작동되어지는 저압용 레귤레이터를 구비하고 있음을 특징으로 한다.Means of the present invention for achieving the above object is composed of a high pressure vessel for storing hydrogen fuel, an injector for injecting hydrogen fuel fed from the high pressure vessel, and a high pressure regulator for adjusting the supply amount of the hydrogen fuel In the hydrogen fuel supply apparatus, characterized in that it is provided with a low pressure regulator connected in parallel with the high pressure regulator and selectively switched to operate with the high pressure regulator in accordance with the engine operating conditions.
Description
제1도는 본 발명에 의한 수소 연료 엔진의 수소 연료공급 제어장치를 나타내는 도면이다.1 is a view showing a hydrogen fuel supply control apparatus for a hydrogen fuel engine according to the present invention.
제2도는 엔지 회전수와 부하와의 상관관계를 나타내는 도표이다.2 is a diagram showing the correlation between engine speed and load.
제3도는 종래 기술이다.3 is a prior art.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 고압 용기 2 : 고압용 호스1: high pressure container 2: high pressure hose
3 : 인젝터 4 : 고압용 레귤레이터3: injector 4: high pressure regulator
5 : 저압용 레귤레이터 6,7 : 솔레노이드5: low pressure regulator 6,7: solenoid
8,9 : 밸브 10 : 저압용 호스8,9 valve 10: low pressure hose
11 : 체크밸브 12 : 서지탱크11: check valve 12: surge tank
[산업상 이용분야][Industrial use]
본원 발명은 수소 연료의 인젝터에 수소 연료를 공급해 주는 수소 연료공급 제어장치에 관한 것이다.The present invention relates to a hydrogen fuel supply control device for supplying hydrogen fuel to an injector of hydrogen fuel.
[종래 기술][Prior art]
종래 수소 연료를 사용하는 엔진의 경우 제2도에 도시된 것과 같이 고압용기(1)속에 수소 연료를 충진시켜 놓은 후 고압용 레귤레이터(4)의 조정을 통해 인젝터(3)로 급송하고 있다.In the case of an engine using a conventional hydrogen fuel, as shown in FIG. 2, the hydrogen fuel is filled in the high pressure container 1 and then fed to the injector 3 by adjusting the high pressure regulator 4.
[종래 기술의 문제점][Problems with Prior Art]
그러나 엔진의 운전 조건에 따라 인젝터로부터 분사되는 수소연료의 양이 달라져야 하는데 반하여 고압용 레귤레이터(4)만으로는 수소연료의 양을 작은 범위로 미세하게 조정하기가 곤란하다는 문제점이 지적되고 있다.However, while the amount of hydrogen fuel injected from the injector should vary according to the operating conditions of the engine, it has been pointed out that it is difficult to finely adjust the amount of hydrogen fuel in a small range with the high-pressure regulator 4 alone.
[발명이 해결하고자 하는 과제][Problem to Solve Invention]
이에 본원 발명은 상기한 문제점을 감안하여 제안한 것으로서 그의 목적으로 하는 바는 엔진의 운전 조건에 따라 적절히 분사압력을 전환하여 사용할 수 있는 수소 연료공급 제어장치를 제공하는데 있다.Accordingly, the present invention has been proposed in view of the above problems, and an object thereof is to provide a hydrogen fuel supply control device which can be used by appropriately switching the injection pressure according to the operating conditions of the engine.
[과제를 달성하기 위한 수단][Means for achieving the task]
상기한 목적을 달성하기 위한 본원 발명의 수단은 수소 연료를 저장하는 고압 용기와, 상기 고압용기로부터 급송되는 수소 연료를 분사하는 인젝터와, 상기 수소 연료의 공급량을 조절하기 위한 고압용 레귤레이터와로 구성되는 수소 연료 공급장치에 있어서, 상기 고압용 레귤레이터와 병렬로 접속되며 엔진 운전 조건에 따라 상기 고압용 레귤레이터와 선택적으로 전환 작동되어지는 저압용 레귤레이터를 구비하고 있음을 특징으로 한다.Means of the present invention for achieving the above object is composed of a high pressure vessel for storing hydrogen fuel, an injector for injecting hydrogen fuel fed from the high pressure vessel, and a high pressure regulator for adjusting the supply amount of the hydrogen fuel In the hydrogen fuel supply apparatus, characterized in that it is provided with a low pressure regulator connected in parallel with the high pressure regulator and selectively switched to operate with the high pressure regulator in accordance with the engine operating conditions.
[실시예]EXAMPLE
제1도는 본 발명에 의한 수소연료공급 제어장치의 일실시예를 나타내는 도면으로 부호 1은 수소(H2)연료를 저장하는 고압용기이며 상기 고압용기(1)로부터 고압호스(2)를 통해 고압호스(2)를 통해 인젝터(3)로 수소연료가 급송되어진다.1 is a view showing an embodiment of a hydrogen fuel supply control device according to the present invention, the reference numeral 1 is a high-pressure container for storing hydrogen (H2) fuel and a high-pressure hose from the high-pressure container (1) through a high-pressure hose (2) Hydrogen fuel is fed to the injector 3 through (2).
상기 고압호스(2)의 도중에는 고압용 레귤레이터(4)와 저압용 레귤레이터(5)가 설치되어 있으며 양자는 서로 병렬로 접속되어 선택적으로 작동하게 된다. 레귤레이터(4)(5)는 각기 연료 공급 차단을 위한 솔레노이드(6)(7)와 연료 공급량 조절을 위한 밸브(8)(9)를 구비하고 있으며 저압용 레귤레이터(5)의 출구측인 저압용 호스(10)에는 체크밸브(11)가 마련되어 있어 고압라인에서 저압라인으로 수소연료가 역류되는 것을 방지한다.The high pressure regulator 4 and the low pressure regulator 5 are installed in the middle of the high pressure hose 2, and both of them are connected to each other in parallel to selectively operate. The regulators (4) and (5) each have a solenoid (6) (7) for shutting off the fuel supply and valves (8) (9) for adjusting the fuel supply amount, and for the low pressure at the outlet side of the low pressure regulator (5). The hose 10 is provided with a check valve 11 to prevent the back flow of hydrogen fuel from the high pressure line to the low pressure line.
이와 같은 본원 발명은 엔진의 운전 조건에 따라 적절히 분사 압력을 전환하여 사용하게 되는데 충분한 연료 공급이 필요한 고속운전 상태에서는 고압용 레귤레이터(4)에 내장된 솔레노이드(6)를 개방 작동하고 저압용 레귤레이터(5)에 내장된 솔레노이드(7)는 차단토록 하므로써 수소 연료가 높은 압력으로 분사 공급되도록 하며 저속운전 상태에서는 상기 고압용 솔레노이드(6)를 차단하고 저압용 솔레노이드(7)는 개방시켜 수소 연료가 저압용 레귤레이터(5)를 통해 인젝터(3)에 낮은 압력으로 공급되도록 제어한다.In the present invention as described above, the injection pressure is appropriately switched according to the operating conditions of the engine, and in a high speed operation state where sufficient fuel supply is required, the solenoid 6 built in the high pressure regulator 4 is opened and the low pressure regulator ( 5) The solenoid (7) built in is to shut off and supply hydrogen fuel at a high pressure. In the low speed operation state, the high pressure solenoid (6) is shut off and the low pressure solenoid (7) is opened so that the hydrogen fuel is low pressure. It is controlled to be supplied at a low pressure to the injector 3 through the regulator (5).
상기한 솔레노이드 (6)(7)는 전체적인 공급압력을 2단계로 제어하는 것이며 구체적인 연료량의 조정은 각 레귤레이터(4)(5)의 밸브(8)(9)제어를 통해 결정하게 된다. 여기서 미설명한 부호 12는 서지탱크이다.The solenoids 6 and 7 control the overall supply pressure in two stages, and the adjustment of the specific fuel amount is determined through the control of the valves 8 and 9 of the regulators 4 and 5. Reference numeral 12, which is not described herein, is a surge tank.
이상과 같은 본원 발명은 저압과 고압의 전환에 있어서 다음의 3가지 기준을 따른다.The present invention as described above follows the following three criteria in switching between low and high pressure.
1) 저속구간(약 1500rpm 이하)에서는 저압을 사용하고1) Use low pressure at low speed section (about 1500rpm or less).
2) 전자 제어장치(ECW)에서 검출되는 일정 토오크 이하인 저부하구간에서는 저압을 사용하며2) Low pressure is used in the low load section below the fixed torque detected by the electronic control unit (ECW).
3) 제2도에서 a와 b를 연결하는 선 이상의 구간에서는 고압을 사용한다.3) High pressure is used in the section above the line connecting a and b in Fig. 2.
[효과][effect]
이상과 같은 본원 발명에 의하면 수소 연료 엔진에 수소연료를 공급해줌에 있어서 고압용 레귤레이터와 저압용 레귤레이터를 병렬로 설치하고 각각 운전 조건에 맞추어 선택적으로 전환되도록 하므로써 수소 분사량이 적어도 되는 운전구간에서는 저압을 사용하여 수소연료가 과잉으로 분사되어 효율이 저하되는것을 방지하고 수소연료 소요량이 큰 운전 구간에서는 고압으로 전환하여 효율적인 운전 상태를 확보하게 되어 연료소비율을 낮추게 되는 효과가 있게 된다.According to the present invention as described above, in supplying hydrogen fuel to a hydrogen fuel engine, a high pressure regulator and a low pressure regulator are installed in parallel, and the low pressure is reduced in an operating section in which the hydrogen injection amount is minimized by being selectively switched according to the operating conditions. It is used to prevent the hydrogen fuel is excessively injected and the efficiency is lowered, and in the operation section where the hydrogen fuel demand is large, the high pressure is converted to high pressure to secure an efficient operating state, thereby reducing the fuel consumption rate.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950049597A KR100223538B1 (en) | 1995-12-14 | 1995-12-14 | Hydrogen Fuel Supply Control System of Hydrogen Fuel Engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950049597A KR100223538B1 (en) | 1995-12-14 | 1995-12-14 | Hydrogen Fuel Supply Control System of Hydrogen Fuel Engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR970044672A KR970044672A (en) | 1997-07-26 |
| KR100223538B1 true KR100223538B1 (en) | 1999-10-15 |
Family
ID=19439899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019950049597A KR100223538B1 (en) | 1995-12-14 | 1995-12-14 | Hydrogen Fuel Supply Control System of Hydrogen Fuel Engine |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR100223538B1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113217200B (en) * | 2021-05-28 | 2022-02-11 | 北京理工大学 | Hydrogen injection testing device and method for direct-injection hydrogen internal combustion engine |
-
1995
- 1995-12-14 KR KR1019950049597A patent/KR100223538B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR970044672A (en) | 1997-07-26 |
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