CN105370568A - Automobile duplex pump - Google Patents
Automobile duplex pump Download PDFInfo
- Publication number
- CN105370568A CN105370568A CN201510940645.8A CN201510940645A CN105370568A CN 105370568 A CN105370568 A CN 105370568A CN 201510940645 A CN201510940645 A CN 201510940645A CN 105370568 A CN105370568 A CN 105370568A
- Authority
- CN
- China
- Prior art keywords
- pump
- vacuum pump
- opening
- suction tude
- air
- 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.)
- Pending
Links
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
- F04C11/001—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations of similar working principle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C25/00—Adaptations of pumps for special use of pumps for elastic fluids
- F04C25/02—Adaptations of pumps for special use of pumps for elastic fluids for producing high vacuum
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2210/00—Fluid
- F04C2210/10—Fluid working
- F04C2210/1005—Air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2210/00—Fluid
- F04C2210/10—Fluid working
- F04C2210/1044—Fuel
Abstract
The invention discloses an automobile duplex pump which comprises a pump cover, a fuel oil pump body, a vacuum pump body and a connecting shaft, wherein an oil pump cavity is formed between the pump cover and the fuel oil pump body; a gas pump cavity is formed between the fuel oil pump body and the vacuum pump body; a fuel pump rotor is arranged in the oil pump cavity; a vacuum pump rotor is arranged in the gas pump cavity; the fuel pump rotor and the vacuum pump rotor are in series connected on the connecting shaft; the connecting shaft is connected to a drive device; a gas exhaustion channel is arranged in the vacuum pump body; a vacuum pump joint is arranged on the vacuum pump body; the vacuum pump joint comprises a body; a gas supply channel which is communicated with a to-be-supplied device is arranged in the body; a gas release channel for releasing gas is arranged in the body; the gas supply channel and the gas release channel are communicated with the gas exhaustion channel; and an opening-closing structure for opening and closing the gas release channel is arranged on the body. The automobile duplex pump has the beneficial effects that: the gas pump cavity can be degassed by directly opening the opening-closing structure in case of not disconnecting the vacuum pump joint and the to-be-supplied device.
Description
Technical field
The present invention relates to auto parts machinery, particularly relate to a kind of automobile duplex pump.
Background technique
In prior art, automobile duplex pump comprises pump cover, fuel pump body, vacuum pump body and coupling shaft, oil pump chamber is formed between pump cover and fuel pump body, air pump chamber is formed between fuel pump body and vacuum pump body, fuel pump rotor is provided with in oil pump chamber, vacuum pump rotor is provided with in air pump chamber, fuel pump rotor and vacuum pump rotor are serially connected on coupling shaft, coupling shaft is for connecting extraneous drive unit, the exhaust passage for being vented is provided with in vacuum pump body, vacuum pump body is provided with the vacuum pump adapter be communicated with exhaust passage, vacuum pump body is provided with the suction tude for air inlet.Although this device achieves the function of vacuum pump and oil pump simultaneously, but the shortcoming that this device exists: 1) if exhaust passageway stops exhaust, air pressure wall ambient pressure in air pump chamber is little, ambient air will enter in air pump chamber by exhaust passageway, and the air pressure affected in air pump chamber controls; 2) vacuum pump adapter for connecting automobile treats air feeder, but in automobile duplex pump maintenance process, the gas in air pump chamber is needed to put, but do not need gas to put into treat in air feeder during maintenance, therefore need vacuum pump adapter during maintenance and need the device of air feed to disconnect, troublesome poeration.
Summary of the invention
The object of this invention is to provide a kind of automobile duplex pump, achieve when not by vacuum pump adapter with treat that air feeder disconnects, directly just can be exitted to air pump chamber by opening-closing structure of outwarding winding.
The object of the invention is to realize by the following technical solutions:
A kind of automobile duplex pump, comprise pump cover, fuel pump body, vacuum pump body and coupling shaft, oil pump chamber is formed between pump cover and fuel pump body, air pump chamber is formed between fuel pump body and vacuum pump body, fuel pump rotor is provided with in oil pump chamber, vacuum pump rotor is provided with in air pump chamber, fuel pump rotor and vacuum pump rotor are serially connected on coupling shaft, coupling shaft is connected to drive unit, the exhaust passage for being vented is provided with in vacuum pump body, vacuum pump body is provided with the vacuum pump adapter be communicated with exhaust passage, vacuum pump adapter comprises body, be provided with for being communicated with the air supply channel treating air feeder in body, the bleed passage for exitting is provided with in body, air supply channel and bleed passage are all communicated with exhaust passage, body is provided with the opening-closing structure for opening and closing bleed passage.
Preferably, opening-closing structure comprises the plug for opening and closing bleed passage, body is provided with the sleeve relative with plug, internal thread of sleeve is connected with the first screw, first screw is connected with plug by the first spring, plug can be made under the effect of the first spring to compress body by screwing the first screw.For during until air feeder air feed, screwed by the first screw and be tightened in sleeve, the first spring is compressed, and be pressed on body at the restoring force effect lower end cap of the first spring, bleed passage is closed by plug; When it is time for repair, by valve closing air supply channel, the first screw of outwarding winding, bleed passage is opened, and gas is released.Achieve the opening and closing function of opening-closing structure, and structure is simple.
Preferably, the joint of the first screw and sleeve is provided with plain cushion, and plain cushion is for sealing the gap between the first screw and sleeve.Prevent gas from spilling from the gap between the first screw and sleeve.
Preferably, exhaust passage is provided with the exhaust valve plate for opening and closing exhaust passage, exhaust valve plate is glued with the exhaust pressing plate near air pump chamber, exhaust pressing plate and exhaust valve plate pass through the second screw in compression in vacuum pump body.Limit gas only to discharge in air pump chamber, for the control of the air pressure in air pump chamber provides condition.
Preferably, the joint of vacuum pump rotor and coupling shaft is provided with support block, and the outer circumferential face of support block is close in vacuum pump body.The middle of support block to coupling shaft makes effect, and prevent the quality because of vacuum pump rotor comparatively large, coupling shaft is tilted, thus effectively prevent because coupling shaft tilts, vacuum pump rotor or fuel pump rotor clash into the pump housing.
Preferably, vacuum pump body is provided with the suction tude for air inlet, suction tude is provided with and only can enters into one-way valve in air pump chamber from the external world for limiting gas.Prevent because the pressure in air pump chamber is excessive, gas outwards reserves from suction tude.
Preferably, one-way valve comprises the valve body be arranged in suction tude, the mounting end of suction tude extend in suction tude, the through hole be communicated with suction tude is set in valve body, the diameter of through hole is less than the internal diameter of suction tude, be provided with the spool for opening and closing through hole in valve body, suction tude is provided with the fitting seat near mounting end, between fitting seat and spool, be connected with the second spring.Achieve one-way valve restriction gas and only can enter into function in air pump chamber from the external world.
Preferably, the second spring is connected with fitting seat by cross jump ring.Achieve the installation of the second spring, and when the second spring is compressed, cross jump ring is also compressed, alleviate the second spring by the pressure be subject to, extend the working life of the second spring.
Preferably, fuel pump body is provided with the oil pump joint be communicated with oil pump chamber, oil pump joint is connected to treats oil supplying device, is provided with pressure-limit valve in oil pump joint.To prevent from, because the oil pressure in oil pump chamber is excessive, occurring oil leakage phenomenon.
Owing to have employed technique scheme, the present invention has the following advantages:
1) by arranging bleed passage, for directly just being exitted to air pump chamber by opening-closing structure of outwarding winding, condition is provided;
2) by arranging opening-closing structure and bleed passage, achieve when not by vacuum pump adapter with treat that air feeder disconnects, directly just can be exitted to air pump chamber by opening-closing structure of outwarding winding, simplify maintenance operation step.
Accompanying drawing explanation
Fig. 1 is automobile duplex pump structure schematic diagram;
Fig. 2 is the plan view of automobile duplex pump;
Fig. 3 is the worm's eye view of automobile duplex pump;
Fig. 4 is the structural representation opened after pump cover of Fig. 3;
Fig. 5 is the E-E sectional view of Fig. 2;
Fig. 6 is the N-N sectional view of Fig. 2;
Fig. 7 is the G-G sectional view of Fig. 4.
Embodiment
The technological means realized to make the present invention, creation characteristic, reach object and effect clearly and be easy to understand, below in conjunction with the drawings and specific embodiments, the present invention is further elaborated:
As shown in Figures 1 to 7, a kind of automobile duplex pump, comprise pump cover 1, fuel pump body 2, vacuum pump body 3 and coupling shaft 5, oil pump chamber 21 is formed between pump cover 1 and fuel pump body 2, air pump chamber 31 is formed between fuel pump body 2 and vacuum pump body 3, fuel pump rotor 22 is provided with in oil pump chamber 21, vacuum pump rotor 34 is provided with in air pump chamber 31, fuel pump rotor 22 and vacuum pump rotor 34 are serially connected on coupling shaft 5, coupling shaft 5 is connected to drive unit, the exhaust passage for being vented is provided with in vacuum pump body 3, vacuum pump body 3 is provided with the vacuum pump adapter 32 be communicated with exhaust passage, vacuum pump adapter 32 comprises body 321, be provided with for being communicated with the air supply channel 322 treating air feeder in body 321, the bleed passage 323 for exitting is provided with in body 321, air supply channel 322 and bleed passage 323 are all communicated with exhaust passage, body 321 is provided with the opening-closing structure for opening and closing bleed passage 323.
Opening-closing structure comprises the plug 324 for opening and closing bleed passage 323, body 321 is provided with the sleeve 326 relative with plug 324, sleeve 326 internal thread is connected with the first screw 325, first screw 325 is connected with plug 324 by the first spring 327, plug 324 can be made under the effect of the first spring 327 to compress body 321 by screwing the first screw 325.First screw 325 is provided with plain cushion 328 with the joint of sleeve 326, and plain cushion 328 is for sealing the gap between the first screw 325 and sleeve 326.
Exhaust passage is provided with the exhaust valve plate 331 for opening and closing exhaust passage, exhaust valve plate 331 is glued with the exhaust pressing plate 332 near air pump chamber 31, exhaust pressing plate 332 and exhaust valve plate 331 are pressed in vacuum pump body 3 by the second screw 333.
Vacuum pump rotor 34 is provided with support block 35 with the joint of coupling shaft 5, and the outer circumferential face of support block 35 is close in vacuum pump body 3.
Vacuum pump body 3 is provided with the suction tude 36 for air inlet, suction tude 36 is provided with and only can enters into one-way valve 37 in air pump chamber 31 from the external world for limiting gas.One-way valve 37 comprises the valve body 371 be arranged in suction tude 36, the mounting end 376 of suction tude 36 extend in suction tude 36, the through hole 372 be communicated with suction tude 36 is set in valve body 371, the diameter of through hole 372 is less than the internal diameter of suction tude 36, the spool 373 for opening and closing through hole 372 is provided with in valve body 371, suction tude 36 is provided with the fitting seat 374 near mounting end 376, between fitting seat 374 and spool 373, is connected with the second spring 375.Second spring 375 is connected with fitting seat 374 by cross jump ring 377.
Fuel pump body 2 is provided with the oil pump joint 23 be communicated with oil pump chamber 21, oil pump joint 23 is connected to treats oil supplying device, is provided with pressure-limit valve 24 in oil pump joint 23.
Working principle of the present invention: by arranging bleed passage 323, for directly just being exitted to air pump chamber 31 by opening-closing structure of outwarding winding, provides condition; By arranging opening-closing structure and bleed passage 323, achieve when not by vacuum pump adapter 32 with when treating that air feeder disconnects, directly just can be exitted to air pump chamber 31 by opening-closing structure of outwarding winding, simplify maintenance operation step.
Although embodiment of the present invention are open as above, but it is not restricted to listed in specification and mode of execution utilization, it can be applied to various applicable the field of the invention completely, for those skilled in the art, can easily realize other amendment, therefore do not deviating under the universal that claim and equivalency range limit, the present invention is not limited to specific details and illustrates here and the legend described.
Claims (9)
1. an automobile duplex pump, comprise pump cover, fuel pump body, vacuum pump body and coupling shaft, oil pump chamber is formed between pump cover and fuel pump body, air pump chamber is formed between fuel pump body and vacuum pump body, fuel pump rotor is provided with in oil pump chamber, vacuum pump rotor is provided with in air pump chamber, fuel pump rotor and vacuum pump rotor are serially connected on coupling shaft, coupling shaft is connected to drive unit, the exhaust passage for being vented is provided with in vacuum pump body, vacuum pump body is provided with the vacuum pump adapter be communicated with exhaust passage, it is characterized in that, vacuum pump adapter comprises body, be provided with for being communicated with the air supply channel treating air feeder in body, the bleed passage for exitting is provided with in body, air supply channel and bleed passage are all communicated with exhaust passage, body is provided with the opening-closing structure for opening and closing bleed passage.
2. automobile duplex pump according to claim 1, it is characterized in that, opening-closing structure comprises the plug for opening and closing bleed passage, body is provided with the sleeve relative with plug, internal thread of sleeve is connected with the first screw, first screw is connected with plug by the first spring, plug can be made under the effect of the first spring to compress body by screwing the first screw.
3. automobile duplex pump according to claim 2, is characterized in that, the joint of the first screw and sleeve is provided with plain cushion, and plain cushion is for sealing the gap between the first screw and sleeve.
4. automobile duplex pump according to claim 1, it is characterized in that, exhaust passage is provided with the exhaust valve plate for opening and closing exhaust passage, exhaust valve plate is glued with the exhaust pressing plate near air pump chamber, exhaust pressing plate and exhaust valve plate pass through the second screw in compression in vacuum pump body.
5. automobile duplex pump according to claim 1, is characterized in that, the joint of vacuum pump rotor and coupling shaft is provided with support block, and the outer circumferential face of support block is close in vacuum pump body.
6. automobile duplex pump according to claim 1, is characterized in that, vacuum pump body is provided with the suction tude for air inlet, suction tude is provided with and only can enters into one-way valve in air pump chamber from the external world for limiting gas.
7. automobile duplex pump according to claim 6, it is characterized in that, one-way valve comprises the valve body be arranged in suction tude, the mounting end of suction tude extend in suction tude, arrange the through hole be communicated with suction tude in valve body, the diameter of through hole is less than the internal diameter of suction tude, is provided with the spool for opening and closing through hole in valve body, suction tude is provided with the fitting seat near mounting end, between fitting seat and spool, is connected with the second spring.
8. automobile duplex pump according to claim 7, is characterized in that, the second spring is connected with fitting seat by cross jump ring.
9. automobile duplex pump according to claim 1, is characterized in that, fuel pump body is provided with the oil pump joint be communicated with oil pump chamber, and oil pump joint is connected to treats oil supplying device, is provided with pressure-limit valve in oil pump joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510940645.8A CN105370568A (en) | 2015-12-16 | 2015-12-16 | Automobile duplex pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510940645.8A CN105370568A (en) | 2015-12-16 | 2015-12-16 | Automobile duplex pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105370568A true CN105370568A (en) | 2016-03-02 |
Family
ID=55373084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510940645.8A Pending CN105370568A (en) | 2015-12-16 | 2015-12-16 | Automobile duplex pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105370568A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105889733A (en) * | 2016-04-11 | 2016-08-24 | 湖北三江船艇科技有限公司 | Parallel type rotor oil pump of ship gasoline engine |
| CN113638879A (en) * | 2021-09-07 | 2021-11-12 | 湖南腾智机电有限责任公司 | Electromagnetic clutch dual pump |
-
2015
- 2015-12-16 CN CN201510940645.8A patent/CN105370568A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105889733A (en) * | 2016-04-11 | 2016-08-24 | 湖北三江船艇科技有限公司 | Parallel type rotor oil pump of ship gasoline engine |
| CN113638879A (en) * | 2021-09-07 | 2021-11-12 | 湖南腾智机电有限责任公司 | Electromagnetic clutch dual pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160302 |