CN202628417U - Low-pressure fuel conveying pump used for dimethyl ether fuel tank - Google Patents
Low-pressure fuel conveying pump used for dimethyl ether fuel tank Download PDFInfo
- Publication number
- CN202628417U CN202628417U CN2012202851832U CN201220285183U CN202628417U CN 202628417 U CN202628417 U CN 202628417U CN 2012202851832 U CN2012202851832 U CN 2012202851832U CN 201220285183 U CN201220285183 U CN 201220285183U CN 202628417 U CN202628417 U CN 202628417U
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- China
- Prior art keywords
- fuel
- pump
- dimethyl ether
- housing
- low
- 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.)
- Expired - Fee Related
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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
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Abstract
The utility model discloses a low-pressure fuel conveying pump used for dimethyl ether fuel tank. The low-pressure fuel conveying pump comprises a motor, and a pump body fixed on the motor, wherein a pump head is installed at the upper part of the pump body, a sealing ring is arranged between the pump body and the pump head, a fuel inlet and a fuel outlet are arranged on the pump head, a cylinder and a tilting tray which are installed coaxial to the pump body are arranged in the pump body, the tilting tray is fixed at the bottom of the pump body, and the cylinder is positioned between the tilting tray and the pump head and is attached with the bottom surface of the pump head. According to the low-pressure fuel conveying pump, the structure is simple, the safety and the reliability are realized, the conveying pressure flow is stable, and the work noise is low.
Description
Technical field
The utility model relates to a kind of transfer pump, particularly relates to a kind of fuel low-pressure delivery pump that is used for the dimethyl ether fuel car.
Background technique
Dimethyl ether is a kind of diesel oil alternative fuel of cleaning.Adopt conventional mechanical formula pump line mouth fuel supply system, the discharging of dimethyl ether engine just can easily reach state IV, even higher emission standard.
The boiling point of dimethyl ether low (24.8 ℃); Be prone to vaporization (saturation vapour pressure is about 0.5MPa under the normal temperature), so dimethyl ether fuel low-pressure delivery system need keep certain pressure, just can avoid the generation of phenomenons such as vapour lock; Assurance makes the motor proper functioning to high-pressure service pump effective supply dimethyl ether fuel.Common low-pressure delivery pump mainly is a displacement pump, and like the roller type electric fuel pump, working pressure is generally less than 0.4MPa, when series connection is used for elevated pressures, exists the life-span short, influences the reliability of system.The Wiper blade type vane pump causes the discharge pressure instability of flow because dimethyl ether is prone to vaporization, and operational noise is big.
In the development process of dimethyl ether engine, plunger type diesel oil high-pressure service pump can be stablized proper functioning, therefore develops the requirement that the plunger type low pressure pump can satisfy the low-pressure fuel supply system of dimethyl ether engine.
The model utility content
The purpose of the utility model is to provide a kind of fuel low-pressure delivery pump that is used for the dimethyl ether fuel car.
The purpose of the utility model is implemented by following technological scheme; A kind of fuel low-pressure delivery pump that is used for the dimethyl ether fuel car, it includes motor, is fixed on the pump housing on the said motor, and said pump housing top is equipped with pump head; Be provided with seal ring between the said pump housing and the said pump head; Said pump head is provided with fuel inlet and fuel outlet, is provided with in the said pump housing and coaxial mounted cylinder body of the said pump housing and swash plate, and said swash plate is fixed on said pump housing bottom; Regulate the flow of pump through the swash plate of changing different lifts, thereby can satisfy the fuel supply needs of the dimethyl ether engine of different fuel circulating load.Said cylinder body is fitted between said swash plate and said pump head and with the bottom surface of said pump head; Place, axle center along said cylinder body, said swash plate and the said pump housing is provided with the drive motor axis hole; The live axle of said motor passes said drive motor axis hole and is fixedly connected with said cylinder body, and said motor drives said cylinder body through motor driving shaft and in the said pump housing, rotates.Said cylinder body upper edge is axially arranged with five fuel cavity; Be provided with a pair of trunk piston set in each said fuel cavity; Spring terminal on the said trunk piston set is fixed on the top of said fuel cavity; The piston shoes on the said trunk piston set and the end face of said swash plate are slidingly connected, and said trunk piston set is rotated and under the effect of said swash plate, done with said cylinder body and pumps.Be provided with the fuel mouth that matches with said fuel inlet and said fuel outlet with the corresponding said cylinder body of each said fuel cavity top.When the fuel cavity on the said cylinder body turns to said fuel inlet or said fuel outlet below with said cylinder body, communicate with said fuel inlet or said fuel outlet just with the fuel mouth at the corresponding said cylinder body of said fuel cavity top.
Said trunk piston set comprises that an end has bulb, and the plunger of the other end hollow, the piston shoes that are articulated and connected with said bulb and an end place the spring in the said plunger cavity.
Interconnective said motor, the said pump housing and said pump head place in the airtight housing; Be full of dimethyl ether fuel in the said housing; Said housing is provided with supply of fuel mouth and fuel delivery outlet; Be equipped with stop valve on said supply of fuel mouth and the said fuel delivery outlet, said fuel outlet is connected through output tube with said fuel delivery outlet.The fuel low-pressure delivery pump that the utility model is used for the dimethyl ether fuel car adopts the immersion mounting type, has both effectively guaranteed the cooling of low-pressure delivery pump, has stopped drive motor axis hole etc. again and has located the possible leakage of dimethyl ether fuel.Be equipped with stop valve on the supply of fuel mouth of housing and the fuel delivery outlet; In case fault appears in the low-pressure delivery pump, close the stop valve at fuel delivery outlet place, open supply of fuel mouth place stop valve; Can adopt the mode of heated shell; The housing internal pressure is raise, the dimethyl ether fuel in the housing is discharged to the fuel storage jar, be convenient to the related components of maintain and replace low-pressure delivery pump.
The advantage of the utility model is; (1) the utility model is used for the fuel low-pressure delivery pump employing immersion mounting type of dimethyl ether fuel car; Both effectively guaranteed the cooling of low-pressure delivery pump; Stop drive motor axis hole etc. again and located the possible leakage of dimethyl ether fuel, be convenient to the related components of maintain and replace low-pressure delivery pump; (2) the utility model is simple in structure, and is safe and reliable, the discharge pressure stability of flow, and operational noise is less.
Description of drawings
Fig. 1 is a kind of pump housing and pump head long splice composition that is used for the fuel low-pressure delivery pump of dimethyl ether fuel car.
Fig. 2 is a kind of fuel low-pressure delivery pump schematic representation that is used for the dimethyl ether fuel car.
Motor 1, the pump housing 2, pump head 3, seal ring 4, fuel inlet 5, fuel outlet 6, cylinder body 7; Swash plate 8, drive motor axis hole 9, fuel cavity 10, bulb 11, plunger 12, piston shoes 13, spring 14; Fuel mouth 15, housing 16, supply of fuel mouth 17, fuel delivery outlet 18, stop valve 19, output tube 20.
Embodiment: a kind of fuel low-pressure delivery pump that is used for the dimethyl ether fuel car; It includes motor 1, is fixed on the pump housing 2 on the motor 1; The pump housing 2 tops are equipped with pump head 3, are provided with seal ring 4 between the pump housing 2 and the pump head 3, and pump head 3 is provided with fuel inlet 5 and fuel outlet 6; Be provided with in the pump housing 2 and the pump housing 2 coaxial mounted cylinder bodies 7 and swash plate 8; Swash plate 8 is fixed on the pump housing 2 bottoms, regulates the flow of pump through the swash plate 8 of changing different lifts, thereby can satisfy the fuel supply needs of the dimethyl ether engine of different fuel circulating load.Cylinder body 7 is fitted between swash plate 8 and pump head 3 and with the bottom surface of pump head 3; Be provided with drive motor axis hole 9 along cylinder body 7, swash plate 8 with the place, axle center of the pump housing 2; The live axle of motor 1 passes drive motor axis hole 9 and is fixedly connected with cylinder body 7, and motor 1 drives cylinder body 7 through motor driving shaft and in the pump housing 2, rotates.Cylinder body 7 upper edges are axially arranged with five fuel cavity 10, are provided with a pair of trunk piston set in each fuel cavity 10, and trunk piston set comprises that an end has the plunger 12 of bulb 11 the other end hollows, the piston shoes 13 and the end that are articulated and connected with bulb 11 place the spring 14 in plunger 12 cavitys.Spring 14 ends on the trunk piston set are fixed on the top of fuel cavity 10, and the piston shoes 13 on the trunk piston set are slidingly connected with the end face of swash plate 8, and trunk piston set is rotated and under the effect of swash plate 8, done with cylinder body 7 and pumps.Be provided with the fuel mouth 15 that matches with fuel inlet 5 and fuel outlet 6 with each fuel cavity 10 corresponding cylinder bodies 7 top.When the fuel cavity on the cylinder body 7 10 turns to fuel inlet 5 or fuel outlet 6 belows with cylinder body 7, communicate with fuel inlet 5 or fuel outlet 6 just with the fuel mouth 15 at fuel cavity 10 corresponding cylinder bodies 7 tops.
Interconnective motor 1, the pump housing 2 place in the airtight housing 16 with pump head 3; Be full of dimethyl ether fuel in the housing 16; Housing 16 is provided with supply of fuel mouth 17 and fuel delivery outlet 18; Be equipped with stop valve 19 on supply of fuel mouth 17 and the fuel delivery outlet 18, fuel outlet 6 is connected through output tube 20 with fuel delivery outlet 18.The fuel low-pressure delivery pump that the utility model is used for the dimethyl ether fuel car adopts the immersion mounting type, has both effectively guaranteed the cooling of low-pressure delivery pump, has stopped drive motor axis hole etc. again and has located the possible leakage of dimethyl ether fuel.Be equipped with stop valve 19 on the supply of fuel mouth 17 of housing 16 and the fuel delivery outlet 18; In case fault appears in the low-pressure delivery pump, close the stop valve at fuel delivery outlet 18 places, open supply of fuel mouth 17 place's stop valves; Can adopt the mode of heated shell 16; Housing 16 internal pressures are raise, the dimethyl ether fuel in the housing 16 is discharged to the fuel storage jar, be convenient to the related components of maintain and replace low-pressure delivery pump.
Claims (3)
1. fuel low-pressure delivery pump that is used for the dimethyl ether fuel car; It includes motor, is fixed on the pump housing on the said motor, and said pump housing top is equipped with pump head, is provided with seal ring between the said pump housing and the said pump head; Said pump head is provided with fuel inlet and fuel outlet; It is characterized in that, be provided with in the said pump housing and coaxial mounted cylinder body of the said pump housing and swash plate that said swash plate is fixed on said pump housing bottom; Said cylinder body is fitted between said swash plate and said pump head and with the bottom surface of said pump head; Place, axle center along said cylinder body, said swash plate and the said pump housing is provided with the drive motor axis hole, and the live axle of said motor passes said drive motor axis hole and is fixedly connected with said cylinder body, and said cylinder body upper edge is axially arranged with five fuel cavity; Be provided with a pair of trunk piston set in each said fuel cavity; Spring terminal on the said trunk piston set is fixed on the top of said fuel cavity, and the piston shoes on the said trunk piston set and the end face of said swash plate are slidingly connected, and is provided with the fuel mouth that matches with said fuel inlet and said fuel outlet with the corresponding said cylinder body of each said fuel cavity top.
2. a kind of fuel low-pressure delivery pump that is used for the dimethyl ether fuel car according to claim 1; It is characterized in that; Said trunk piston set comprises that an end has bulb, and the plunger of the other end hollow, the piston shoes that are articulated and connected with said bulb and an end place the spring in the said plunger cavity.
3. a kind of fuel low-pressure delivery pump that is used for the dimethyl ether fuel car according to claim 1 and 2; It is characterized in that; Interconnective said motor, the said pump housing and said pump head place in the airtight housing, are full of dimethyl ether fuel in the said housing, and said housing is provided with supply of fuel mouth and fuel delivery outlet; Be equipped with stop valve on said supply of fuel mouth and the said fuel delivery outlet, said fuel outlet is connected through output tube with said fuel delivery outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202851832U CN202628417U (en) | 2012-06-18 | 2012-06-18 | Low-pressure fuel conveying pump used for dimethyl ether fuel tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202851832U CN202628417U (en) | 2012-06-18 | 2012-06-18 | Low-pressure fuel conveying pump used for dimethyl ether fuel tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202628417U true CN202628417U (en) | 2012-12-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202851832U Expired - Fee Related CN202628417U (en) | 2012-06-18 | 2012-06-18 | Low-pressure fuel conveying pump used for dimethyl ether fuel tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202628417U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109000519A (en) * | 2018-09-18 | 2018-12-14 | 上海工程技术大学 | A kind of no gunpowder environmental protection fireworks machine |
-
2012
- 2012-06-18 CN CN2012202851832U patent/CN202628417U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109000519A (en) * | 2018-09-18 | 2018-12-14 | 上海工程技术大学 | A kind of no gunpowder environmental protection fireworks machine |
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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: 20121226 Termination date: 20160618 |