CN105971845A - Vacuum pump - Google Patents
Vacuum pump Download PDFInfo
- Publication number
- CN105971845A CN105971845A CN201610473482.1A CN201610473482A CN105971845A CN 105971845 A CN105971845 A CN 105971845A CN 201610473482 A CN201610473482 A CN 201610473482A CN 105971845 A CN105971845 A CN 105971845A
- Authority
- CN
- China
- Prior art keywords
- piston
- pump
- diaphragm seal
- vacuum pump
- check valve
- 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
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B25/00—Multi-stage pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
- F04B37/10—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
- F04B37/14—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use to obtain high vacuum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0005—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0005—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons
- F04B39/0016—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons with valve arranged in the piston
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0027—Pulsation and noise damping means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/10—Adaptations or arrangements of distribution members
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
The invention relates to a vacuum pump which comprises a pump body and a piston. A pump cavity is formed in the pump body. The piston is arranged in the pump cavity and in sliding fit with the inner wall of the pump cavity. The vacuum pump further comprises a driving device used for driving the piston to slide in the pump cavity. The piston partitions the pump cavity into an inner cavity and an outer cavity. A gas feed inlet and a gas drain outlet are formed in the pump body. A first one-way valve allowing gas to enter the outer cavity is arranged on the inner side of the gas feed inlet. The vacuum pump is characterized in that the piston is provided with gas holes allowing the gas to enter the inner cavity from the outer cavity; a second one-way valve used for allowing the gas to enter the inner cavity is arranged in the position, corresponding to the gas holes, of the piston; and a third one-way valve allowing the gas to be drained out from the inner cavity is arranged on the inner side of the gas drain outlet. Through the technical scheme, the vacuum pump is low in noise and provides a comfortable environment for passengers.
Description
Technical field
The present invention relates to a kind of pump, particularly to a kind of vacuum pump.
Background technology
Vacuum pump refers to utilize machinery, physics, chemically or physically chemical method to be bled and the device or the equipment that obtain vacuum to taking out container.
Existing a kind of vacuum pump, it is mainly used on automobile, including the pump housing, piston, be provided with pump chamber in the pump housing, piston is arranged in pump chamber, piston is slidably matched with pump chamber inwall, also including the driving means for driving piston to slide in pump chamber, pump chamber is separated into inner chamber, exocoel by piston, and on the pump housing, corresponding exocoel position is provided with air inlet, air vent, being provided with supplied gas inside air inlet and enter the first check valve of exocoel, air vent is provided with supplied gas and discharges the second check valve of exocoel.But, the vacuum pump of this structure, gas directly enters exocoel from air inlet, then is discharged exocoel by air vent, and its noise is big, and, when rotating speed is the biggest, noise is the biggest, thus reduces the comfort of passenger.
Summary of the invention
The purpose of the present invention: in order to overcome the defect of prior art, the invention provides a kind of vacuum pump, and its noise is low, provides comfortable environment to passenger.
Technical scheme: a kind of vacuum pump, include the pump housing, piston, pump chamber it is provided with in the pump housing, piston is arranged in pump chamber, piston is slidably matched with pump chamber inwall, also include the driving means for driving piston to slide in pump chamber, pump chamber is separated into inner chamber by piston, exocoel, the pump housing is provided with air inlet, air vent, it is provided with supplied gas inside air inlet and enters the first check valve of exocoel, it is characterized in that: described piston is provided with supplied gas and enters the pore of inner chamber from exocoel, on piston, corresponding pore position is provided with supplied gas and enters the second check valve of inner chamber, the 3rd check valve that supplied gas is discharged it is provided with from inner chamber inside air vent.
Use technique scheme, being slided in pump chamber by driving means control piston and change the pressure of exocoel, when exocoel volume becomes big, the first check valve is opened, second closed check valve, gas enters exocoel, when exocoel volume diminishes, the first closed check valve from air inlet through the first check valve, second check valve is opened, gas is entered inner chamber by the pore on piston, and the pressure of interior intracavity increases, and opens the 3rd check valve and is discharged by air vent.The vacuum pump of this structure, gas by greatly reducing noise, thus provides comfortable environment to passenger in pump chamber.
The further setting of the present invention: described piston includes pedestal, the gland that split is arranged, gland is fixing with pedestal to be connected, described pore is arranged on gland, pedestal is provided with supplied gas and enters the first through hole of inner chamber, the second described check valve includes diaphragm seal A, and described diaphragm seal A correspondence pore position is movably arranged between gland and pedestal.
Using above-mentioned further setting, when exocoel volume diminishes, gas pushes diaphragm seal A open, is opened by pore, and gas enters inner chamber, this piston, the second check valve set-up mode, simple in construction from pore, the first through hole.
The further setting of the present invention: on described pedestal, corresponding diaphragm seal location A is provided with some second through holes.
Use and above-mentioned further arrange, the second through hole can when exocoel volume becomes big, the gas of interior intracavity quickly promote after the second through hole diaphragm seal A by port sealing, so energy quick closedown the second check valve.
The present invention is the most further arranged: described pedestal part located with gland is fixing to be connected, and keeper is arranged along piston glide direction, and described diaphragm seal A is sheathed on the positioning element.
Using and above-mentioned the most further arrange, the keeper of setting both can position pedestal and gland, again so that diaphragm seal A can move along piston glide direction, will not produce position skew, plays guide effect well, thus ensures that sealing effectiveness is stable.
The present invention is the most further arranged: between described gland and pedestal, also pressure is provided with sealing gasket, and be circumferentially with sealing lip, described sealing lip and the conflict of pump chamber inwall of described sealing gasket are formed and seal.
Use and above-mentioned the most further arrange, be possible to prevent gas to reveal between piston and pump chamber inwall, and, this sealing gasket, sealing lip, when piston movement, it is also ensured that sealing is reliable.
The present invention is the most further arranged: on the described pump housing, corresponding cavity position is provided with port, port position is provided with end cap, air vent is arranged on end cap, 3rd check valve includes diaphragm seal B, diaphragm seal B is provided with the first lead, is provided with positioning seat in end cap, and positioning seat is provided with steam vent, diaphragm seal B is arranged on the outside of steam vent, and the first lead is plugged on positioning seat.
Using and above-mentioned the most further arrange, after interior cavity pressure increases, promote diaphragm seal B to open steam vent, the gas of interior intracavity is discharged through steam vent, air vent；First lead is possible to prevent diaphragm seal B to produce position skew.
The present invention is the most further arranged: be provided with sponge between described end cap and positioning seat, positioning seat is provided with locating ring, locating ring and positioning seat surround locating slot, diaphragm seal B is arranged in locating slot, steam vent is arranged on the bottom of locating slot, and the first lead is plugged in bottom locating slot, and sponges cover sets outside locating ring, described locating ring is provided with breach, and air vent and locating slot stagger setting.
Using and above-mentioned the most further arrange, the sponge of setting can absorb noise；The locating slot of setting, breach, so that noise can fully be absorbed by the sponge, reduce noise result and be further enhanced.
The present invention is the most further arranged: the first described check valve includes diaphragm seal C, described diaphragm seal C is provided with the second lead, described outer intracavity is provided with mounting seat, mounting seat is provided with air inlet, air inlet turns on air inlet, diaphragm seal C is positioned at the inner side of air inlet, and the second lead is plugged in mounting seat.
Using and above-mentioned the most further arrange, when exocoel volume becomes big, gas is pushed diaphragm seal C open and is entered exocoel by air inlet, and the second lead is possible to prevent diaphragm seal C to produce position skew.
The present invention is the most further arranged: described driving means includes motor, stabilizer, power transmission shaft, the output shaft of motor is located in the center of stabilizer, stabilizer is linked with the output shaft of motor, power transmission shaft is located on stabilizer, power transmission shaft is relative to the center eccentric setting of stabilizer, described piston is provided with transmission arm, and described transmission arm is set on power transmission shaft.
Use and above-mentioned the most further arrange, motor drive transmission arm to swing through stabilizer, power transmission shaft thus drive piston to reciprocatingly slide in pump chamber, simple in construction, stable work in work；Stabilizer, can reduce the vibrations produced when transmission arm swings, reduce noise.
The present invention is the most further arranged: described piston, transmission arm, air inlet, the first check valve, the second check valve are correspondingly arranged two, and two piston one right settings of the first from left, pump chamber is separated into an inner chamber, two exocoels by two pistons.
Use and above-mentioned the most further arrange, the efficiency of evacuation can be improved, time-consuming.
Accompanying drawing explanation
Fig. 1 is the structural representation of the specific embodiment of the invention；
Fig. 2 is the cut-away view of the specific embodiment of the invention；
Fig. 3 is driving device structure figure in the specific embodiment of the invention；
Fig. 4 is vent position structure chart in the specific embodiment of the invention；
Fig. 5 is sponge mounting structure figure in the specific embodiment of the invention；
Fig. 6 is diaphragm seal C mounting structure figure in the specific embodiment of the invention；
Fig. 7 is diaphragm seal B mounting structure figure in the specific embodiment of the invention；
Fig. 8 is piston explosive figure in the specific embodiment of the invention；
Fig. 9 is piston structure figure in the specific embodiment of the invention；
Figure 10 is specific embodiment of the invention middle port structure chart.
Detailed description of the invention
As Figure 1-10 shows, a kind of vacuum pump, include the pump housing 1, piston 2, pump chamber 3 it is provided with in the pump housing 1, piston 2 is arranged in pump chamber 3, piston 2 is slidably matched with pump chamber 3 inwall, also include the driving means 4 for driving piston 2 to slide in pump chamber 3, pump chamber 3 is separated into inner chamber 31 by piston 2, exocoel 32, the pump housing 1 is provided with air inlet 11, air vent 12, it is provided with supplied gas inside air inlet 11 and enters the first check valve 7 of exocoel 32, described piston 2 is provided with supplied gas and enters the pore 5 of inner chamber 31 from exocoel 32, on piston 2, corresponding pore 5 position is provided with supplied gas and enters the second check valve 8 of inner chamber 31, the 3rd check valve 9 that supplied gas is discharged it is provided with from inner chamber 31 inside air vent 12.nullWherein，Described piston 2 includes the pedestal 21 that split is arranged、Gland 22，Gland 22 is fixing with pedestal 21 to be connected，Described pore 5 is arranged on gland 22，Pedestal 21 is provided with supplied gas and enters the first through hole 211 of inner chamber 31，The second described check valve 8 includes diaphragm seal A81，Described diaphragm seal A81 correspondence pore 5 position is movably arranged between gland 22 and pedestal 21，On described pedestal 21, corresponding diaphragm seal A81 position is provided with some second through holes 212，Described pedestal 21 part located with gland 22 6 is fixing to be connected，Keeper 6 is arranged along piston 2 glide direction，Described diaphragm seal A81 is set on keeper 6，Keeper 6 can be bolt、Bearing pin etc.，Keeper 6 both can position pedestal 21 and gland 22，Again so that diaphragm seal A can move along piston 2 glide direction，Position skew will not be produced，Play guide effect well，Thus ensure that sealing effectiveness is stable.
In the specific embodiment of the invention, between described gland 22 and pedestal 21, also pressure is provided with sealing gasket 23, and be circumferentially with sealing lip 24, described sealing lip 24 and the conflict of pump chamber 3 inwall of described sealing gasket 23 are formed and seal.Gas so it is possible to prevent to reveal between piston 2 and pump chamber 3 inwall, and, this sealing gasket 23, sealing lip 24, when piston 2 moves, it is also ensured that sealing is reliable.
In the specific embodiment of the invention, on the described pump housing 1, corresponding inner chamber 31 position is provided with port 13, port 13 position is provided with end cap 14, air vent 12 is arranged on end cap 14, and the 3rd check valve 9 includes diaphragm seal B91, diaphragm seal B91 and is provided with the first lead 92, positioning seat 15 it is provided with in end cap 14, positioning seat 15 is provided with pore 151, and diaphragm seal B is arranged on the outside of steam vent 151, and the first lead 92 is plugged on positioning seat 15.After pressure increases in inner chamber 31, promoting diaphragm seal B to open steam vent 151, the gas in inner chamber 31 is discharged through steam vent 151, air vent 12；First lead 92 is possible to prevent diaphragm seal B91 to produce position skew.
In the specific embodiment of the invention, it is provided with sponge 16 between described end cap 14 and positioning seat 15, positioning seat 15 is provided with locating ring 152, locating ring 152 and positioning seat 15 surround locating slot 153, diaphragm seal B91 is arranged in locating slot 153, steam vent 151 is arranged on the bottom of locating slot 153, first lead 92 is plugged in bottom locating slot 153, outside the sheathed locating ring of sponge 16 152, described locating ring 152 is provided with breach 1521, air vent 12 and locating slot 153 stagger setting, and the sponge 16 of setting can absorb noise；The locating slot 153 of setting, breach 1521, so that noise can fully be absorbed by sponge 16, reduce noise result and be further enhanced.
In the specific embodiment of the invention, the first described check valve 7 includes diaphragm seal C71, described diaphragm seal C71 is provided with the second lead 72, it is provided with mounting seat 10 in described exocoel 32, mounting seat 10 is provided with air inlet 101, air inlet 101 turns on air inlet 11, and diaphragm seal C71 is positioned at the inner side of air inlet 101, and the second lead 72 is plugged in mounting seat 10.When exocoel 32 volume becomes big, gas is pushed diaphragm seal C71 open and is entered exocoel 32 by air inlet 101, and the second lead 72 is possible to prevent diaphragm seal C71 to produce position skew.
In the specific embodiment of the invention, described driving means 4 includes motor 41, stabilizer 42, power transmission shaft 43, the output shaft of motor 41 is located in the center of stabilizer 42, stabilizer 42 is linked with the output shaft of motor 41, power transmission shaft 43 is located on stabilizer 42, power transmission shaft 43 is relative to the center eccentric setting of stabilizer 42, and described piston 2 is provided with transmission arm 44, and described transmission arm 44 is set on power transmission shaft 43.Driven transmission arm 44 to swing by motor 41 through stabilizer 42, power transmission shaft 43 thus drive piston 2 to reciprocatingly slide in pump chamber 3, simple in construction, stable work in work；Stabilizer 42, can reduce the vibrations produced when transmission arm 44 swings, and reduces noise.
In the specific embodiment of the invention, described piston 2, transmission arm 44, air inlet the 11, first check valve the 7, second check valve 8 are correspondingly arranged two, and two piston 2 one right settings of the first from left, pump chamber 3 is separated into 31, two exocoels 32 of an inner chamber by two pistons 2.So can improve the efficiency of evacuation, time-consuming.
By driving means 4 control piston 2 slide in pump chamber 3 change exocoel 32 pressure, when exocoel 32 volume becomes big, first check valve 7 is opened, the second closed check valve, and gas enters exocoel 32 from air inlet 11 through the first check valve, when exocoel 32 volume diminishes, first closed check valve, the second check valve 8 opens, and gas is entered inner chamber 31 by the pore 5 on piston 2, pressure in inner chamber 31 increases, and opens the 3rd check valve 9 and is discharged by air vent 12.The vacuum pump of this structure, gas by greatly reducing noise, thus provides comfortable environment to passenger in pump chamber 3.
Claims (10)
1. a vacuum pump, include the pump housing, piston, pump chamber it is provided with in the pump housing, piston is arranged in pump chamber, piston is slidably matched with pump chamber inwall, also include the driving means for driving piston to slide in pump chamber, pump chamber is separated into inner chamber by piston, exocoel, the pump housing is provided with air inlet, air vent, it is provided with supplied gas inside air inlet and enters the first check valve of exocoel, it is characterized in that: described piston is provided with supplied gas and enters the pore of inner chamber from exocoel, on piston, corresponding pore position is provided with supplied gas and enters the second check valve of inner chamber, the 3rd check valve that supplied gas is discharged it is provided with from inner chamber inside air vent.
Vacuum pump the most according to claim 1, it is characterized in that: described piston includes pedestal, the gland that split is arranged, gland is fixing with pedestal to be connected, described pore is arranged on gland, pedestal is provided with supplied gas and enters the first through hole of inner chamber, the second described check valve includes diaphragm seal A, and described diaphragm seal A correspondence pore position is movably arranged between gland and pedestal.
Vacuum pump the most according to claim 2, it is characterised in that: on described pedestal, corresponding diaphragm seal location A is provided with some second through holes.
4. according to the vacuum pump described in Claims 2 or 3, it is characterised in that: described pedestal part located with gland is fixing to be connected, and keeper is arranged along piston glide direction, and described diaphragm seal A is sheathed on the positioning element.
Vacuum pump the most according to claim 4, it is characterised in that: between described gland and pedestal, also pressure is provided with sealing gasket, and be circumferentially with sealing lip, described sealing lip and the conflict of pump chamber inwall of described sealing gasket are formed and seal.
6. according to the vacuum pump described in claim 1 or 2 or 3 or 5, it is characterized in that: on the described pump housing, corresponding cavity position is provided with port, port position is provided with end cap, air vent is arranged on end cap, and the 3rd check valve includes diaphragm seal B, diaphragm seal B and is provided with the first lead, positioning seat it is provided with in end cap, positioning seat is provided with steam vent, and diaphragm seal B is arranged on the outside of steam vent, and the first lead is plugged on positioning seat.
Vacuum pump the most according to claim 6, it is characterized in that: between described end cap and positioning seat, be provided with sponge, positioning seat is provided with locating ring, locating ring and positioning seat surround locating slot, and diaphragm seal B is arranged in locating slot, and steam vent is arranged on the bottom of locating slot, first lead is plugged in bottom locating slot, sponges cover sets outside locating ring, and described locating ring is provided with breach, and air vent and locating slot stagger setting.
8. according to the vacuum pump described in claim 1 or 2 or 3 or 5 or 7, it is characterized in that: the first described check valve includes diaphragm seal C, described diaphragm seal C is provided with the second lead, described outer intracavity is provided with mounting seat, mounting seat is provided with air inlet, air inlet turns on air inlet, and diaphragm seal C is positioned at the inner side of air inlet, and the second lead is plugged in mounting seat.
9. according to the vacuum pump described in claim 1 or 2 or 3 or 5 or 7, it is characterized in that: described driving means includes motor, stabilizer, power transmission shaft, the output shaft of motor is located in the center of stabilizer, stabilizer is linked with the output shaft of motor, power transmission shaft is located on stabilizer, power transmission shaft is relative to the center eccentric setting of stabilizer, and described piston is provided with transmission arm, and described transmission arm is set on power transmission shaft.
Vacuum pump the most according to claim 9, it is characterized in that: described piston, transmission arm, air inlet, the first check valve, the second check valve are correspondingly arranged two, two piston one right settings of the first from left, pump chamber is separated into an inner chamber, two exocoels by two pistons.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610473482.1A CN105971845A (en) | 2016-06-22 | 2016-06-22 | Vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610473482.1A CN105971845A (en) | 2016-06-22 | 2016-06-22 | Vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105971845A true CN105971845A (en) | 2016-09-28 |
Family
ID=57019712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610473482.1A Pending CN105971845A (en) | 2016-06-22 | 2016-06-22 | Vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105971845A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108825496A (en) * | 2018-06-25 | 2018-11-16 | 上海拓绅汽车电子有限公司 | A kind of double-screw type new-energy automobile vacuum pump |
| CN113494433A (en) * | 2021-08-11 | 2021-10-12 | 中海石油(中国)有限公司 | Piston type drilling pump for drilling operation |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04112977A (en) * | 1990-09-03 | 1992-04-14 | Mikuni Jukogyo Kk | Reciprocating vacuum pump |
| CN102094776A (en) * | 2009-12-09 | 2011-06-15 | 上海汽车制动系统有限公司 | Oppositely arranged swing piston type vacuum pump used for automobiles |
| CN104121160A (en) * | 2013-04-23 | 2014-10-29 | 上海旭岛汽车零部件有限公司 | Electric vacuum pump with two swinging spherical pistons |
| CN105114283A (en) * | 2015-07-21 | 2015-12-02 | 石家庄佳信汽车制动系统有限公司 | Linear opposed piston type electric vacuum pump |
| CN205689379U (en) * | 2016-06-22 | 2016-11-16 | 浙江中昌汽车零部件有限公司 | A kind of vacuum pump |
-
2016
- 2016-06-22 CN CN201610473482.1A patent/CN105971845A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04112977A (en) * | 1990-09-03 | 1992-04-14 | Mikuni Jukogyo Kk | Reciprocating vacuum pump |
| CN102094776A (en) * | 2009-12-09 | 2011-06-15 | 上海汽车制动系统有限公司 | Oppositely arranged swing piston type vacuum pump used for automobiles |
| CN104121160A (en) * | 2013-04-23 | 2014-10-29 | 上海旭岛汽车零部件有限公司 | Electric vacuum pump with two swinging spherical pistons |
| CN105114283A (en) * | 2015-07-21 | 2015-12-02 | 石家庄佳信汽车制动系统有限公司 | Linear opposed piston type electric vacuum pump |
| CN205689379U (en) * | 2016-06-22 | 2016-11-16 | 浙江中昌汽车零部件有限公司 | A kind of vacuum pump |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108825496A (en) * | 2018-06-25 | 2018-11-16 | 上海拓绅汽车电子有限公司 | A kind of double-screw type new-energy automobile vacuum pump |
| CN113494433A (en) * | 2021-08-11 | 2021-10-12 | 中海石油(中国)有限公司 | Piston type drilling pump for drilling operation |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160928 |