CN203308626U - Fuel oil supply system of two-cylinder diesel engine - Google Patents
Fuel oil supply system of two-cylinder diesel engine Download PDFInfo
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- CN203308626U CN203308626U CN2013203096685U CN201320309668U CN203308626U CN 203308626 U CN203308626 U CN 203308626U CN 2013203096685 U CN2013203096685 U CN 2013203096685U CN 201320309668 U CN201320309668 U CN 201320309668U CN 203308626 U CN203308626 U CN 203308626U
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- Prior art keywords
- oil
- fuel
- diesel
- pump
- oil inlet
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- 239000000295 fuel oil Substances 0.000 title abstract description 3
- 239000000446 fuel Substances 0.000 claims abstract description 64
- 238000002347 injection Methods 0.000 claims abstract description 18
- 239000007924 injection Substances 0.000 claims abstract description 18
- 239000002828 fuel tank Substances 0.000 claims abstract description 16
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 3
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 3
- 241001330002 Bambuseae Species 0.000 claims description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 3
- 239000011425 bamboo Substances 0.000 claims description 3
- 239000003921 oil Substances 0.000 abstract description 49
- 239000002283 diesel fuel Substances 0.000 abstract description 6
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000003749 cleanliness Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Fuel-Injection Apparatus (AREA)
Abstract
本实用新型涉及两缸柴油机的燃油供给系统。该系统包括燃油箱、输油泵、柴油滤清器、喷油泵和两个喷油器，其中喷油泵的出油口通过高压油管分别连通着两个喷油器，在喷油泵的进油口和燃油箱的回油口之间并联着溢流阀，其特征在于：所述燃油箱的一侧通过出油管连通着柴油滤清器的进油口，柴油滤清器的出油口连通着输油泵的进油口，输油泵的出油口通过油管连通着喷油泵的进油口。通过改进，本实用新型使燃油先经过柴油滤清器后再进入输油泵，洁净的柴油不会影响输油泵的密封，排除空气进入低压油路的可能性，有效降低柴油机的故障率，提高输油泵的使用寿命。
The utility model relates to a fuel supply system for a two-cylinder diesel engine. The system includes a fuel tank, a fuel delivery pump, a diesel filter, a fuel injection pump and two fuel injectors. An overflow valve is connected in parallel between the oil return ports of the fuel tank, and it is characterized in that: one side of the fuel tank is connected to the oil inlet of the diesel filter through the oil outlet pipe, and the oil outlet of the diesel filter is connected to the output port. The oil inlet of the oil pump and the oil outlet of the oil delivery pump are connected to the oil inlet of the fuel injection pump through the oil pipe. Through the improvement, the utility model makes the fuel oil pass through the diesel oil filter before entering the fuel delivery pump. The clean diesel oil will not affect the seal of the fuel delivery pump, and the possibility of air entering the low-pressure oil circuit is eliminated, which effectively reduces the failure rate of the diesel engine and improves the delivery efficiency. service life of the oil pump.
Description
技术领域 technical field
本实用新型属于柴油机的燃油供给系统技术领域，具体涉及两缸柴油机的燃油供给系统。 The utility model belongs to the technical field of a fuel supply system for a diesel engine, in particular to a fuel supply system for a two-cylinder diesel engine.
背景技术 Background technique
柴油机的燃油供给系统的作用是根据工作循环和发火顺序的要求，定时、定量、定压的将柴油喷入气缸燃烧，使柴油机工作输出动力。燃油供给系统的油路包括低压油路和高压油路，高压油路是指喷油泵到喷油器的油路，其一般路线为喷油泵→高压油管→喷油器。 The role of the fuel supply system of the diesel engine is to inject diesel into the cylinder for combustion at regular, quantitative, and constant pressure according to the requirements of the working cycle and firing sequence, so that the diesel engine can work and output power. The oil circuit of the fuel supply system includes a low-pressure oil circuit and a high-pressure oil circuit. The high-pressure oil circuit refers to the oil circuit from the fuel injection pump to the injector. The general route is fuel injection pump→high-pressure fuel pipe→fuel injector. `` ``
低压油路是指喷油泵前的燃油供给系统，其一般路线为燃油→输油泵→柴油滤清器→喷油泵。在柴油机的工作过程中，柴油先到输油泵，再到柴油滤清器，再到喷油泵。没有经过过滤的柴油从输油泵进入后，细小的颗粒在输油泵处聚集，影响输油泵的密封，使空气进入低压油路中，将导致柴油机运转不平稳，甚至停车。不清洁的柴油进入燃烧室也影响燃烧，导致功率不足、起动难等故障。 The low-pressure oil circuit refers to the fuel supply system before the fuel injection pump, and its general route is fuel → fuel pump → diesel filter → fuel injection pump. During the working process of the diesel engine, the diesel oil first goes to the fuel delivery pump, then to the diesel filter, and then to the fuel injection pump. After the unfiltered diesel oil enters from the fuel pump, fine particles gather at the fuel pump, affecting the seal of the fuel pump and causing air to enter the low-pressure oil circuit, which will cause the diesel engine to run unstable or even stop. The entry of unclean diesel into the combustion chamber will also affect the combustion, resulting in failures such as insufficient power and difficult starting.
发明内容 Contents of the invention
为了提高进入输油泵柴油的清洁度，保证输油泵处的密封和柴油的燃烧，本实用新型提供一种改进结构的两缸柴油机的燃油供给系统。 In order to improve the cleanliness of the diesel oil entering the fuel pump and ensure the sealing of the fuel pump and the combustion of the diesel, the utility model provides a fuel supply system for a two-cylinder diesel engine with an improved structure.
改进的技术解决方案如下： The improved technical solution is as follows:
两缸柴油机的燃油供给系统包括燃油箱、输油泵、柴油滤清器、喷油泵和两个喷油器，其中喷油泵的出油口通过高压油管分别连通着两个喷油器，在喷油泵的进油口和燃油箱的回油口之间并联着溢流阀，改进在于：所述燃油箱的一侧通过出油管连通着柴油滤清器的进油口，柴油滤清器的出油口连通着输油泵的进油口，输油泵的出油口通过油管连通着喷油泵的进油口。 The fuel supply system of a two-cylinder diesel engine includes a fuel tank, a fuel delivery pump, a diesel filter, a fuel injection pump and two fuel injectors. An overflow valve is connected in parallel between the oil inlet of the fuel tank and the oil return port of the fuel tank. The improvement lies in: one side of the fuel tank is connected to the oil inlet of the diesel filter through the oil outlet pipe, and the oil outlet of the diesel filter The port is connected to the oil inlet of the fuel delivery pump, and the oil outlet of the fuel delivery pump is connected to the oil inlet of the fuel injection pump through the oil pipe.
燃油箱的出油管和柴油滤清器的进油口之间串联着进油接头，所述进油接头为带滤网的竹节式接头。 An oil inlet joint is connected in series between the oil outlet pipe of the fuel tank and the oil inlet of the diesel oil filter, and the oil inlet joint is a bamboo joint with a filter screen.
本实用新型通过对两缸柴油机燃油供给系统的低压油路的改进，使燃油先经过柴油滤清器后再进入输油泵，洁净的柴油不会影响输油泵的密封，排除空气进入低压油路的可能性，有效降低柴油机的故障率，提高输油泵的使用寿命。 The utility model improves the low-pressure oil circuit of the fuel supply system of the two-cylinder diesel engine, so that the fuel oil first passes through the diesel filter and then enters the fuel delivery pump. Possibility, effectively reduce the failure rate of diesel engines and increase the service life of fuel pumps.
附图说明 Description of drawings
图1为本实用新型结构示意图。 Fig. 1 is the structural representation of the utility model.
图2为本实用新型工作原理图。 Fig. 2 is a working principle diagram of the utility model.
上图中序号：柴油滤清器1、进油接头2、第一进油胶管3、输油泵4、第二进油胶管5、喷油泵6、溢流阀8、高压油管9、喷油器10、燃油箱11。
Serial number in the above picture:
具体实施方式 Detailed ways
下面结合附图，通过实施例对本实用新型作进一步地说明。 Below in conjunction with accompanying drawing, the utility model is further described by embodiment.
实施例 Example
参见图1，两缸柴油机的燃油供给系统包括燃油箱11、输油泵4、柴油滤清器1、喷油泵6和两个喷油器10，其中喷油泵6的出油口通过高压油管9分别连通着两个喷油器10，在喷油泵6的进油口和燃油箱11的回油口之间并联着溢流阀8，改进在于：燃油箱11的一侧通过出油管和进油接头2连通着柴油滤清器1的进油口，进油接头2为带滤网的竹节式接头。柴油滤清器1的出油口通过第一进油胶管3连通着输油泵4的进油口，输油泵4的出油口通过第二进油胶管5连通着喷油泵6的进油口。
Referring to Fig. 1, the fuel supply system of a two-cylinder diesel engine includes a
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203096685U CN203308626U (en) | 2013-05-31 | 2013-05-31 | Fuel oil supply system of two-cylinder diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203096685U CN203308626U (en) | 2013-05-31 | 2013-05-31 | Fuel oil supply system of two-cylinder diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203308626U true CN203308626U (en) | 2013-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203096685U Expired - Fee Related CN203308626U (en) | 2013-05-31 | 2013-05-31 | Fuel oil supply system of two-cylinder diesel engine |
Country Status (1)
| Country | Link |
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| CN (1) | CN203308626U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240174A (en) * | 2015-07-06 | 2016-01-13 | 谭大钊 | Diesel engine oil supply system |
| CN115653804A (en) * | 2022-11-21 | 2023-01-31 | 山西柴油机工业有限责任公司 | Fuel supply system for diesel engine |
-
2013
- 2013-05-31 CN CN2013203096685U patent/CN203308626U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240174A (en) * | 2015-07-06 | 2016-01-13 | 谭大钊 | Diesel engine oil supply system |
| CN115653804A (en) * | 2022-11-21 | 2023-01-31 | 山西柴油机工业有限责任公司 | Fuel supply system for diesel engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131127 Termination date: 20190531 |