CN102562393A - External electric oil injection pump with automatic exhaust function - Google Patents
External electric oil injection pump with automatic exhaust function Download PDFInfo
- Publication number
- CN102562393A CN102562393A CN201210046638XA CN201210046638A CN102562393A CN 102562393 A CN102562393 A CN 102562393A CN 201210046638X A CN201210046638X A CN 201210046638XA CN 201210046638 A CN201210046638 A CN 201210046638A CN 102562393 A CN102562393 A CN 102562393A
- Authority
- CN
- China
- Prior art keywords
- oil
- pump
- pressure relief
- scavenger valve
- return tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Details Of Reciprocating Pumps (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The invention discloses an external electric oil injection pump with automatic exhaust function, comprising an oil pumping device, wherein an oil inlet pipe and an oil return pipe are arranged above the oil pump; an oil pump body and an oil return valve are arranged in the oil pumping device; an oil inlet of the oil inlet pipe and an oil outlet of the oil return pipe are connected and matched with a fuel box; an oil outlet of the oil pump body and an oil inlet of the oil return valve are connected and matched; a gap is reserved between a pressure relief opening of the oil return valve and an oil inlet of the oil return pipe to form a non-closed connection structure. Compared with the prior art, the external electric oil injection pump with the automatic exhaust function has the beneficial effects that the problem of air automatic exhaust and automatic air resistance elimination in the original oil and fuel pipe of the pump body can be solved well due to the gap between the oil inlet of the oil return pipe and the pressure relief opening of the oil return valve, and the advantage of the flexible layout of the external electric oil injection pump is maintained, so that the invention is beneficial to maintain usually and reduces cost.
Description
Technical field
The present invention relates to a kind of EFI oil pump, belong to the oil pump equipment technical field, refer in particular to a kind of external automatic vent EFI oil pump.
Background technique
In the existing technology, Motor Vehicle EFI oil pump generally is divided into built-in oil pump and external oil pump.Built-in oil pump is installed on fuel tank inside; The fuel tank inner space is required than higher; Fuel tank must have bigger complete inner space and bigger mounting plane, in the fuel tank of little volume, profile more complicated, has the limitation of can't layout and can't install.And if the fuel pump independent suspension is outside in fuel tank; Though solved the drawback that built-in pump oil device is installed limitation; But can't solve the problem of getting rid of automatically in the fuel pipe air; Can't proper functioning thereby cause when the external oil pump has air-resistance phenomenon to take place in original state or oil pipe, cause thrashing.On the other hand, the external oil pump is because the fuel oil that flows carries out the outside cooling, and the while also can be brought out the air-resistance phenomenon generation and reduced the pump housing life-span.
Summary of the invention
The objective of the invention is to overcome shortcoming of the prior art with not enough, when a kind of advantage of flexibility that keeps external layout is provided, solved the external automatic vent EFI oil pump that the initial oil-feed of the pump housing and fuel line air get rid of and eliminate automatically vapour lock automatically.
To achieve these goals, the present invention realizes according to following technological scheme:
A kind of external automatic vent EFI oil pump includes pump oil device, and said pump oil device top is provided with oil inlet pipe and return tube; Set inside has oil pump body and scavenger valve; Wherein, the oil inlet pipe filler opening is connected cooperation respectively with the return tube oil outlet with fuel tank, and the oil pump body oil outlet is connected cooperation with the scavenger valve filler opening; Remain with the gap between scavenger valve pressure relief opening and the return tube filler opening, form non-enclosed linkage structure.
Further, the oblique laterally horn mouth structure that extends to form of said return tube filler opening, the horn mouth radome structure be located at scavenger valve pressure relief opening top and and the scavenger valve pressure relief opening between remain with the gap.
Further, said return tube filler opening at least a portion be sheathed on the scavenger valve pressure relief opening outside and and the scavenger valve pressure relief opening between remain with the gap.
Further, said return tube filler opening level height is higher than the oil inlet pipe oil outlet.
Further, said oil inlet pipe is arranged in the inner part of pump oil device and extends to pump oil device bottom and oil inlet pipe oil outlet and face and be against pump oil device bottom.
Further, said oil pump body filler opening position is provided with filter screen.
Further, the external fuel-injection valve for high-pressure of said scavenger valve high pressure oil outlet.
The present invention compared with prior art, its beneficial effect is:
Through the gap structure between return tube filler opening and the scavenger valve pressure relief opening; Can well solve initial oil-feed of the pump housing and fuel line air gets rid of and the problem of eliminating vapour lock automatically automatically; The advantage that has kept external EFI oil pump flexible topology; Help Maintenance and Repair at ordinary times, reduced cost.
In order to understand the present invention more clearly, below accompanying drawings is set forth embodiment of the present invention.
Description of drawings
Fig. 1 is the user mode schematic representation of the embodiment of the invention 1.
Fig. 2 is the user mode schematic representation of the embodiment of the invention 2.
Solid arrow is the fuel flow direction among the figure, and dotted arrow is an air-flow direction.
Embodiment
Embodiment 1
As shown in Figure 1; External automatic vent EFI oil pump according to the invention includes pump oil device 1, and said pump oil device 1 top is provided with oil inlet pipe 11 and return tube 12; Set inside has oil pump body 13 and scavenger valve 14; Wherein, oil inlet pipe filler opening 111 is connected cooperation with fuel tank 2 respectively with return tube oil outlet 121, forms fuel circuit.
Above-mentioned scavenger valve filler opening 141 is connected cooperation with oil pump body oil outlet 131; Scavenger valve high pressure oil outlet 142 external fuel-injection valve for high-pressure; And the oblique laterally horn mouth structure that extends to form of said return tube filler opening 122; The horn mouth radome structure be located at scavenger valve pressure relief opening 143 tops and and scavenger valve pressure relief opening 143 between remain with the gap, form non-enclosed linkage structure.
Preferred version as present embodiment; Said oil inlet pipe 11 is arranged in the inner part of pump oil device and extends to pump oil device 1 bottom and oil inlet pipe oil outlet 112 and face and be against pump oil device 1 bottom; Said return tube filler opening 122 level heights are higher than oil inlet pipe oil outlet 112, and said oil pump body filler opening 132 positions are provided with filter screen 15.
Working principle of the present invention is described below:
1, during original state; Fuel oil relies on gravity and oil pipe height difference to enter into pump oil device intracavity bottom from oil inlet pipe, and the air in the pump oil device chamber can get into fuel tank through return tube from the horn mouth structure of top return tube filler opening and the annular space between the scavenger valve pressure relief opening simultaneously;
2, after oil pump is started working; Fuel oil gets into oil pump body through filter screen in the pump oil device chamber, and the high pressure oil stream after coming out from oil pump body is through the scavenger valve of oil pump body top, and wherein the fraction high pressure oil can flow to fuel-injection valve for high-pressure; Spurt into combustion in IC engine; Remaining most of high pressure oil stream is then discharged through the scavenger valve pressure relief opening, and the return tube filler opening corresponding with the scavenger valve pressure relief opening is designed to the horn mouth structure, the oily stream of pressure release is at a high speed directly sprayed into flow back to fuel tank in the return tube; Simultaneously near the scavenger valve pressure relief opening, produce negative pressure; The fuel oil and the survival gas that drive in the pump oil device chamber flow back to fuel tank, because the fuel oil in the return tube is mandatory flowing, can the bubble that form in the pipeline be pushed fuel tank; And with the bubble suction pump in oil inlet pipe oil device inner chamber again through annular space row from going out pump oil device, thereby eliminate air-resistance phenomenon.
Embodiment 2
As shown in Figure 2; Described mode of execution of present embodiment and embodiment 1 are basic identical; Difference only is, said return tube filler opening 122 at least a portion of this mode of execution be sheathed on scavenger valve pressure relief opening 143 outside and and scavenger valve pressure relief opening 143 between remain with the gap.All the other modes of operation are identical with embodiment 1 with working principle.
The present invention is not limited to above-mentioned mode of execution; If various changes of the present invention and modification are not broken away from the spirit and scope of the present invention; If these are changed and modification belongs within claim of the present invention and the equivalent technologies scope, then the present invention also is intended to comprise these changes and modification.
Claims (7)
1. an external automatic vent EFI oil pump includes pump oil device, and said pump oil device top is provided with oil inlet pipe and return tube; Set inside has oil pump body and scavenger valve; Wherein, the oil inlet pipe filler opening is connected cooperation respectively with the return tube oil outlet with fuel tank, and the oil pump body oil outlet is connected cooperation with the scavenger valve filler opening; It is characterized in that: remain with the gap between said scavenger valve pressure relief opening and the return tube filler opening, form non-enclosed linkage structure.
2. according to the said external automatic vent of claim 1 EFI oil pump; It is characterized in that: the oblique laterally horn mouth structure that extends to form of said return tube filler opening, horn mouth radome structure be located at scavenger valve pressure relief opening top and and the scavenger valve pressure relief opening between remain with the gap.
3. according to the said external automatic vent of claim 1 EFI oil pump, it is characterized in that: said return tube filler opening at least a portion be sheathed on the scavenger valve pressure relief opening outside and and the scavenger valve pressure relief opening between remain with the gap.
4. according to the arbitrary said external automatic vent EFI oil pump of claim 1 to 3, it is characterized in that: said return tube filler opening level height is higher than the oil inlet pipe oil outlet.
5. according to the arbitrary said external automatic vent EFI oil pump of claim 1 to 3, it is characterized in that: said oil inlet pipe is arranged in the inner part of pump oil device and extends to pump oil device bottom and oil inlet pipe oil outlet and face and be against pump oil device bottom.
6. according to the arbitrary said external automatic vent EFI oil pump of claim 1 to 3, it is characterized in that: said oil pump body filler opening position is provided with filter screen.
7. according to the arbitrary said external automatic vent EFI oil pump of claim 1 to 3, it is characterized in that: the external fuel-injection valve for high-pressure of said scavenger valve high pressure oil outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210046638.XA CN102562393B (en) | 2012-02-28 | 2012-02-28 | External electric oil injection pump with automatic exhaust function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210046638.XA CN102562393B (en) | 2012-02-28 | 2012-02-28 | External electric oil injection pump with automatic exhaust function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102562393A true CN102562393A (en) | 2012-07-11 |
| CN102562393B CN102562393B (en) | 2014-04-16 |
Family
ID=46408749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210046638.XA Active CN102562393B (en) | 2012-02-28 | 2012-02-28 | External electric oil injection pump with automatic exhaust function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102562393B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09209865A (en) * | 1996-02-09 | 1997-08-12 | Kubota Corp | Fuel supply device of diesel engine |
| CN1865688A (en) * | 2006-04-30 | 2006-11-22 | 无锡开普动力有限公司 | Electrically-controlled oilway automatic exhaust device for single-cylinder diesel engine |
| CN2866882Y (en) * | 2006-01-11 | 2007-02-07 | 江苏常发实业集团有限公司 | Diesel engine fuel tank |
| CN200943549Y (en) * | 2006-09-07 | 2007-09-05 | 江苏常发实业集团有限公司 | Generating set oil tank |
-
2012
- 2012-02-28 CN CN201210046638.XA patent/CN102562393B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09209865A (en) * | 1996-02-09 | 1997-08-12 | Kubota Corp | Fuel supply device of diesel engine |
| CN2866882Y (en) * | 2006-01-11 | 2007-02-07 | 江苏常发实业集团有限公司 | Diesel engine fuel tank |
| CN1865688A (en) * | 2006-04-30 | 2006-11-22 | 无锡开普动力有限公司 | Electrically-controlled oilway automatic exhaust device for single-cylinder diesel engine |
| CN200943549Y (en) * | 2006-09-07 | 2007-09-05 | 江苏常发实业集团有限公司 | Generating set oil tank |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102562393B (en) | 2014-04-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5940136B2 (en) | High performance vacuum venturi pump | |
| CN1950235B (en) | Fuel supply device for a motor vehicle | |
| CN205025530U (en) | Oil -gas separator of supercharged engine | |
| JP2011094606A (en) | Blow-by gas recirculating apparatus for engine | |
| KR101223449B1 (en) | Variable intake-type air cleaner | |
| JP4061306B2 (en) | Fuel tank | |
| CN104500175A (en) | Engine oil-gas separation system | |
| CN101749154B (en) | Fuel supply device | |
| CN105179120A (en) | Active cleaning pump system module of evaporative emission control system | |
| CN102562393A (en) | External electric oil injection pump with automatic exhaust function | |
| US7886722B2 (en) | Fuel tank for a motor vehicle | |
| CN208106523U (en) | Crankcase ventilation system for medium-sized diesel engine | |
| KR20130114914A (en) | Preventing apparatus to inflow water into canister | |
| CN109958552B (en) | Fuel steam desorption system and vehicle | |
| CN106704061A (en) | Engine electric control oil supply device for model airplane and unmanned aerial vehicle | |
| CN207670184U (en) | A kind of fuel tank pipeline structure | |
| WO2015012756A1 (en) | Arrangement for use with an air filter | |
| CN201154744Y (en) | Fuel supply system for motorcycle | |
| CN2866882Y (en) | Diesel engine fuel tank | |
| CN103485896A (en) | Anti-siphon structure in oil suction inlet of lubricating oil pump | |
| CN204327237U (en) | Oil-gas separation assembly | |
| CN215444248U (en) | Carbon tank with active desorption function | |
| JP5296582B2 (en) | Engine generator | |
| CN113187583B (en) | Turbocharger reflux structure and turbocharger thereof | |
| CN106150840A (en) | A kind of Vehicular electric generator based on two-stroke air cylinder driven |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: GUANGDONG JIANASHI TECHNOLOGY INDUSTRIAL CO., LTD. Free format text: FORMER OWNER: , GUANGDONG YINHE MOTORCYCLE INDUSTRY CO., LTD. Effective date: 20140721 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140721 Address after: 528311 Guangdong, Shunde, Beijiao Town, North West Industrial Zone, Wai Wai, No. 8 Patentee after: GUANGDONG JIANASHI TECHNOLOGY INDUSTRIAL Co.,Ltd. Address before: 528311 Guangdong, Shunde, Beijiao Town, North West Industrial Zone, Wai Wai, No. 8 Patentee before: GUANGDONG YINHE MOTORCYCLE INDUSTRY Co.,Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: GUANGDONG YINHE MOTORCYCLE INDUSTRY CO., LTD. Free format text: FORMER OWNER: GUANGDONG JIANASHI TECHNOLOGY INDUSTRIAL CO., LTD. Effective date: 20150127 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150127 Address after: 528311 Guangdong, Shunde, Beijiao Town, North West Industrial Zone, Wai Wai, No. 8 Patentee after: GUANGDONG YINHE MOTORCYCLE INDUSTRY Co.,Ltd. Address before: 528311 Guangdong, Shunde, Beijiao Town, North West Industrial Zone, Wai Wai, No. 8 Patentee before: GUANGDONG JIANASHI TECHNOLOGY INDUSTRIAL Co.,Ltd. |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151119 Address after: 528311 Guangdong, Shunde, Beijiao Town, North West Industrial Zone, Wai Wai, No. 8 Patentee after: GUANGDONG JIANASHI TECHNOLOGY INDUSTRIAL Co.,Ltd. Address before: 528311 Guangdong, Shunde, Beijiao Town, North West Industrial Zone, Wai Wai, No. 8 Patentee before: GUANGDONG YINHE MOTORCYCLE INDUSTRY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230221 Address after: 529700 No.1, No. 32, Minfeng Road, Hecheng Town, Heshan City, Jiangmen City, Guangdong Province (self compiled No. 02) Patentee after: Guangdong Xingxing locomotive Technology Co.,Ltd. Address before: 528311, No. 8 Industrial Zone, West North Sea, Beijiao Town, Shunde District, Guangdong, Foshan Patentee before: GUANGDONG JIANASHI TECHNOLOGY INDUSTRIAL Co.,Ltd. |