CN104696221A - Electric vacuum pump for vehicle with control function - Google Patents
Electric vacuum pump for vehicle with control function Download PDFInfo
- Publication number
- CN104696221A CN104696221A CN201410332386.6A CN201410332386A CN104696221A CN 104696221 A CN104696221 A CN 104696221A CN 201410332386 A CN201410332386 A CN 201410332386A CN 104696221 A CN104696221 A CN 104696221A
- Authority
- CN
- China
- Prior art keywords
- pump
- mentioned
- module
- space portion
- 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
-
- 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
- F04C29/06—Silencing
-
- 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
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
- F04C18/344—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
-
- 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
-
- 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
- F04C29/0021—Systems for the equilibration of forces acting on the pump
- F04C29/0035—Equalization of pressure pulses
-
- 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
- F04C2210/22—Fluid gaseous, i.e. compressible
-
- 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
- F04C2240/00—Components
- F04C2240/40—Electric motor
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S415/00—Rotary kinetic fluid motors or pumps
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S417/00—Pumps
Abstract
The invention provides an electric vacuum pump for vehicle with a control function; the electric vacuum pump comprises the following elements: a motor module comprising an electric motor and used for providing driving force from an external power supply; a housing with one side combined with the motor module; a pump module having a pump air suction port intaking air and a pump air outlet discharging the sucked air, and the pump module is combined to the other side of the housing; a pump cover covering the pump module and combined with the housing. The pump cover is provided with penetration lead-in holes leading in airs, and a suction path used for leading air from the lead in hole to the pump air suction port; the suction path is provided in sequence with an expansion room and a shrink room in an airflow direction, the expansion room ensures the space so as to enlarge an air path of the air lead in hole; the shrink room can narrow the air path when compared with the expansion room.
Description
Technical field
The present invention relates to electric vacuum pump, particularly, relate to and reduce noise and the electric vacuum pump of raising water tightness by improving structure.
Background technique
Automobile is permitted multipart comprehensive electronics and mechanical device as combination, becomes modern representative means of transportation.Usually, as the device being used for driver's stop vehicle in such automobile, braking device is employed.Braking device is by utilizing link or oily pneumatics to amplify and the operating device transmitting the steering force of driver and the main body that accepts its power and produce braking force are formed.Wherein, in order to alleviate steering force, booster type break utilizes vacuum or pressurized air.
Be divided into by engine-driven vacuum pump and the vacuum pump that driven by motor as the vacuum pump carrying out additional braking force for such braking device.Recently, consider the raising etc. of rate of fuel consumption rate, be applied to various vehicle by the electrodynamic type vacuum pump of electrical motor driven.And, in order to the raising of the rate of fuel consumption rate of vehicle, various parts tend to reduce weight on the basis maintaining intensity and Security, and, along with the increase of various electric control device, expect that the structure of such electric control device is simple and take a small amount of space.
Further, in the process of suction in impeller-type electric vacuum pump, compression, Exhaust Gas, pulsation is produced, therefore, the noise that preferred reduction produces because these pulsation, and maintain constant and stable degree of vacuum.
Summary of the invention
The object of the present invention is to provide a kind of reduction noise, and the electric vacuum pump of constant and stable degree of vacuum can be maintained.
Further, another object of the present invention is to provide a kind of structure for starting motor module simple and take the electric vacuum pump in a small amount of space.
Further, another object of the present invention is to provide a kind of moisture that can prevent to introduce the vibration vacuum pump of motor module side from pump module.
Object of the present invention is realized by a kind of electric vacuum pump, and it comprises: motor module, and it comprises electric motor, provides driving force by the power supply applied from outside, housing, its side can be combined with said motor module, pump module, it has the pump intakeport sucking air and the pump exhaust inlet of discharging the air sucked, and this pump module is incorporated into the opposite side of above-mentioned housing, and pump cover, it is incorporated into above-mentioned housing in the mode covering said pump module, wherein, the through introduction hole be provided with for outer gas introducing is covered in said pump, and, be formed with the suction passage guiding air from above-mentioned introduction hole to said pump intakeport, in above-mentioned suction passage, be formed with expansive space portion successively along the flow direction of above-mentioned air and reduce space portion, this expansive space portion ensure that space and supplies the passage of the air introduced from above-mentioned introduction hole to expand, this reduces space portion and is formed as, compared to above-mentioned expansive space portion, the channel narrows of the air introduced.
Further, preferably, above-mentioned expansive space portion and the above-mentioned space portion that reduces comprise the stiffening rib be integrally formed with above-mentioned pump cover, or, comprise having after flexible quality of rubber materials is formed and be incorporated into above-mentioned pump cover.
Further, preferably, above-mentioned expansive space portion is formed in three places, and the above-mentioned space portion that reduces is formed in two places.
Further, preferably, said motor module comprises DC motor, the circuit substrate and said motor module that have for driving the controlling functions of above-mentioned DC motor is closely arranged on the inside of above-mentioned housing.
And, preferably, also comprise live axle, this live axle is for connecting said pump module and said motor module, comprise oil sealing, this oil sealing is combined with above-mentioned live axle, to suppress moisture to be incorporated into said motor module from said pump module, and pressurized and be combined with above-mentioned live axle between above-mentioned housing with said motor module.
According to the present invention, can provide reduction noise, and can maintain constant and stable degree of vacuum, the structure for starting motor module is simple, occupies little space, and moisture can be prevented to introduce the vibration vacuum pump of motor module side from pump module.
Accompanying drawing explanation
Fig. 1 is the exploded perspective view of the electric vacuum pump according to one embodiment of the invention.
Fig. 2 is the plane section figure of pump module.
Fig. 3 a is the cross-sectional view of the pump cover side shown in Fig. 1.
Fig. 3 b is the stereogram for illustration of suction passage.
Fig. 4 is the concept map for illustration of air flow according to one embodiment of the invention.
Fig. 5 a is according to an embodiment of the invention for illustration of the skeleton diagram of the circuit substrate of DC motor.
Fig. 5 b is the prior art concept map for contrasting with Fig. 5 a.
Fig. 6 is the amplification sectional view of the bound fraction of pump module and motor module.
Label declaration
100 electric vacuum pump 110 pump modules
111 rotor 111a slits
111b blade 113 cam ring
115 chamber 117a, b upper and lower plates
119a, 119b pump intakeport, pump discharge opening
130 motor module 131 motors
133 live axle 135 circuit substrates
137 bearing 139 oil sealings
150 pump cover 151 suction ports
153 stiffening rib 155 suction passages
155a expansive space portion 155b reduces space portion
170 housing 171 housing body
173 motor sleeve pipe 175 motor covers
177 spue hole 191 locking element
193 oil rings
Embodiment
Below, with reference to Fig. 1 ~ 6, the Vehicular electric vacuum pump (, referred to as " electric vacuum pump ") according to one embodiment of the invention is described below.
Fig. 1 is the exploded perspective view of the electric vacuum pump according to one embodiment of the invention, Fig. 2 is the plane section figure of pump module, Fig. 3 a is the cross-sectional view of the pump cover side shown in Fig. 1, Fig. 3 b is the stereogram for illustration of suction passage, Fig. 4 is the concept map for illustration of air flow according to one embodiment of the invention, Fig. 5 a is according to an embodiment of the invention for illustration of the skeleton diagram of the circuit substrate of DC motor, Fig. 5 b is the prior art concept map for contrasting with Fig. 5 a, and Fig. 6 is the amplification sectional view of the bound fraction of pump module and motor module.
Electric vacuum pump 100 comprises: motor module 130, and it comprises the motor 131 be electrically driven, and, be provided driving force by the power supply applied from outside; Housing 170, its side can be combined with said motor module 130; There is the pump intakeport 117a sucking air and the pump exhaust inlet 117b discharging the air sucked, be incorporated into the pump module 110 of the opposite side of housing 170, i.e. upside; And the pump cover 150 of housing 170 is incorporated in the mode covering pump module 110.
Motor module 130 comprises: the motor 131 with not shown stators and rotators; Be incorporated into motor 131 and transmit the live axle 133 of rotating force to pump module 110; And circuit substrate 135, it is provided with the parts such as electronic relay, to control the driving of motor 131.Preferably, motor module 130 has following structure: live axle 133 is supported for rotatable by bearing 137, has oil sealing 139, thus moisture moisture can be prevented to be incorporated into motor module 130 along live axle 133 from pump module 110.
Pump module 110 sucks after air also compresses the air sucked by the support of housing 170 and discharges, and has: be incorporated into the rotor 111 that live axle 133 carries out rotating; Multiple slit 111a of rotor 111 are formed in along radial direction; Be incorporated into slit 111a, and along the blade 111b that slit 111a passes in and out; Be incorporated into the outside of rotor 111, and form space between rotor 111, between blade 111b and blade 111b, form the cam ring 113 of chamber 115; And form the upper plate 117a of chamber 115 and lower plate 117b along the axle direction of live axle 133 in both sides across cam ring, rotor 111 and blade 111b, upper plate 117a and lower plate 117b is respectively arranged with the pump intakeport 119a for sucking air and the pump exhaust inlet 119b for discharging air.
Pump intakeport 119a is formed with through pump cover 150 and suction port 151 as the passage sucking air is communicated with, and pump discharge opening 119b is formed with through housing and the hole 177 that spues as the passage of discharging air is communicated with.
Housing 170 forms outward appearance together with pump cover 150, and supports pump module 110 and motor module 130.Housing 170 by support pump module 110 housing body 171, be incorporated into housing body 171 and surround motor 131 part motor sleeve pipe 173, be incorporated into motor sleeve pipe 173 and the circuit substrate 135 supported for drive motor 131 can the motor cover 175 of watertight shape hermetic motor module 130 be formed.Further, housing body 171 is provided with is communicated with pump discharge opening 119b and becomes the hole 177 that spues of the passage of discharging air.There is the locking element 191 of the mode support housing 170 of the motor, framework etc. that are incorporated into vehicle.
Further, electric vacuum pump 100 has the not shown multiple Sealings that will be used for the airtight oil ring maintained between each parts and included.
As best shown in figures 3 a and 3b, suction passage 155 according to one embodiment of the invention guides air from suction port 151 to pump intakeport 119a, it is characterized in that, expansive space portion 155a and reduce space portion 155b is formed with successively along air-flow direction at suction passage 155, wherein, this expansive space portion 155a ensure that space and supplies the passage of the air introduced from suction port 151 to expand, this reduces space portion 155b and is formed as, compared to expansive space portion 155a, the channel narrows of the air introduced.Such expansive space portion 155a and reduce space portion 155b and can be formed as various shape, is formed by the stiffening rib 153 being formed in the inner side of pump cover 150, can also have flexible quality of rubber materials and is formed and be incorporated into above-mentioned pump cover with not shown.
Wherein, as an embodiment, expansive space portion 155a is formed in three places, between expansive space portion 155a, defines reduce space portion 155b at Liang Chu, but, can also otherwise be formed obviously.
By forming such expansive space portion 155a and reduce space portion 155b, as shown in Figure 4, the m-pump exhaust inlet 119b-in compressing area of the inhalation-chamber 115 of pump intakeport 119a-chamber 115 hole 177 that spues is connected.Namely, stored air in expansive space portion 155a, air is made to pass through to reduce space portion 155b afterwards, thus buffering pulsation, wherein, this expansive space portion 155a sucks the chamber 115 be formed between blade 111b to carry out sucking and the passage of above-mentioned pulsation that produces in the process compressed.
Namely the function of the caisson cushioning pulsation, can be realized at expansive space portion 155a.Thus can prevent pulsation at pump module 110, owing to can prevent such pulsation, so it is little to have the noise produced in electric vacuum pump 100, the vacuum of generation is also more stable and can the advantage of constant maintenance.
According to another embodiment of the present invention, the material of housing 170 and pump cover 150 is made up of aluminum alloy etc., and is waited by casting and make, and can also comprise the synthetic resin that can maintain abundant intensity as required.By adopting such material, the weight of electric vacuum pump 100 can be reduced.By changing material, the weight of about about 20 ~ 30% can be reduced.
Further, in the present invention, in DC motor and BLDC motor can be selected as the motor 131 being applied to motor module 130.Wherein, as shown in Figure 5 a, comprise for drive the circuit substrate 135 of the switch relay of DC motor preferably and motor module 130 be closely configured in the inside of housing 170.
In the prior art, as shown in Figure 5 b, the outside of the housing 31 of electric vacuum pump 30 is combined in for the switch relay 35 of the driving of control DC motor.As shown in figure 5a and 5b, according to the present invention, the known circuit for starting motor is simpler than prior art, convenient and have watertight structure.
Between each parts of electric vacuum pump 100, there is various oil ring 193, to maintain tightness.
In addition, as shown in Figure 6, preferably include oil sealing 139, this oil sealing 139 is incorporated into live axle 133, to suppress moisture to be incorporated into motor module 130 from pump module 110, and pressurized and be combined with this live axle 133 between housing 170 and motor module 130.
Wherein, reference character 157 is combined in rubber plate between the stiffening rib 153 of pump cover 150 and pump module 110, that play the functions such as sealing gasket (seal), plays and maintain airtight function.
According to an embodiment of above-mentioned invention, one can be provided to reduce noise, and degree of vacuum that can be constant and stable, and, structure for starting motor module is simple, occupies little space, and moisture can be prevented to introduce the vibration vacuum pump of motor module side from pump module.
Wherein, be illustrated shown in the drawings of various embodiment of the present invention, but those skilled in the art in the invention in the scope not departing from principle of the present invention and spirit, can change the present embodiment.Protection of the present invention is surrounded and is limited by claims and with the scope of its equity.
Claims (5)
1. an electric vacuum pump, is characterized in that, comprising:
Motor module, it comprises electric motor, is provided driving force by the power supply applied from outside;
Housing, its side can be combined with said motor module;
Pump module, it has the pump intakeport sucking air and the pump exhaust inlet of discharging the air sucked, and this pump module is incorporated into the opposite side of above-mentioned housing; And
Pump cover, it is incorporated into above-mentioned housing in the mode covering said pump module,
The through introduction hole be provided with for outer gas introducing is covered in said pump, and, be formed with the suction passage guiding air from above-mentioned introduction hole to said pump intakeport,
In above-mentioned suction passage, be formed with expansive space portion successively along the flow direction of above-mentioned air and reduce space portion, this expansive space portion ensure that space and supplies the passage of the air introduced from above-mentioned introduction hole to expand, this reduces space portion and is formed as, compared to above-mentioned expansive space portion, the channel narrows of the air introduced.
2. electric vacuum pump according to claim 1, is characterized in that,
Above-mentioned expansive space portion and the above-mentioned space portion that reduces comprise the stiffening rib be integrally formed with above-mentioned pump cover, or above-mentioned expansive space portion and the above-mentioned space portion that reduces comprise having after flexible quality of rubber materials is formed and be incorporated into above-mentioned pump cover.
3. electric vacuum pump according to claim 1, is characterized in that,
Above-mentioned expansive space portion is formed in three places, and the above-mentioned space portion that reduces is formed in two places.
4. electric vacuum pump according to claim 1, is characterized in that,
Said motor module comprises DC motor,
The circuit substrate and said motor module that have for driving the controlling functions of above-mentioned DC motor are closely arranged on the inside of above-mentioned housing.
5. electric vacuum pump according to claim 1, is characterized in that,
This electric vacuum pump also comprises live axle, this live axle for connecting said pump module and said motor module,
This electric vacuum pump comprises oil sealing, and this oil sealing is combined with above-mentioned live axle, to suppress moisture to be incorporated into said motor module from said pump module, and pressurized and be combined with above-mentioned live axle between above-mentioned housing with said motor module.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020130151201A KR20150066093A (en) | 2013-12-06 | 2013-12-06 | Electric Vacuum Pump for Vehicle with Control Function |
| KR10-2013-0151201 | 2013-12-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104696221A true CN104696221A (en) | 2015-06-10 |
Family
ID=53343669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410332386.6A Pending CN104696221A (en) | 2013-12-06 | 2014-07-11 | Electric vacuum pump for vehicle with control function |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR20150066093A (en) |
| CN (1) | CN104696221A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481556A (en) * | 2016-12-07 | 2017-03-08 | 嘉兴东唐汽车科技有限公司 | A kind of vavuum pump |
| CN109072918A (en) * | 2016-03-30 | 2018-12-21 | 莱宝有限公司 | Vacuum pump with muffler |
| CN109707628A (en) * | 2018-12-17 | 2019-05-03 | 陈鑫 | The aluminium alloy pump body structure of vacuum pump and the honing head processed for the pump housing |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0655947U (en) * | 1993-01-14 | 1994-08-02 | 株式会社明治ゴム化成 | Rubber hose for pulsation absorption of pressure fluid |
| US20040170516A1 (en) * | 2003-02-28 | 2004-09-02 | Hinchey Ronald R. | Rotary vane pump with multiple sound dampened inlet ports |
| CN101598129A (en) * | 2009-06-22 | 2009-12-09 | 衢州新业汽车部件有限公司 | Direct-current power-driven vacuum pump used for automobile |
| CN101709700A (en) * | 2009-11-12 | 2010-05-19 | 浙江万安科技股份有限公司 | Wet-type rotary vane electric vacuum pump for automobile |
| CN201513343U (en) * | 2009-09-08 | 2010-06-23 | 武汉市天虹仪表有限责任公司 | Direct current brush-less coaxial rotary vane pump with adjustable speed |
| JP2010151065A (en) * | 2008-12-26 | 2010-07-08 | Nabtesco Automotive Corp | Negative pressure source supply device |
| CN103206374A (en) * | 2012-01-17 | 2013-07-17 | 阿斯莫有限公司 | Electric pump |
-
2013
- 2013-12-06 KR KR1020130151201A patent/KR20150066093A/en not_active Application Discontinuation
-
2014
- 2014-07-11 CN CN201410332386.6A patent/CN104696221A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0655947U (en) * | 1993-01-14 | 1994-08-02 | 株式会社明治ゴム化成 | Rubber hose for pulsation absorption of pressure fluid |
| US20040170516A1 (en) * | 2003-02-28 | 2004-09-02 | Hinchey Ronald R. | Rotary vane pump with multiple sound dampened inlet ports |
| JP2010151065A (en) * | 2008-12-26 | 2010-07-08 | Nabtesco Automotive Corp | Negative pressure source supply device |
| CN101598129A (en) * | 2009-06-22 | 2009-12-09 | 衢州新业汽车部件有限公司 | Direct-current power-driven vacuum pump used for automobile |
| CN201513343U (en) * | 2009-09-08 | 2010-06-23 | 武汉市天虹仪表有限责任公司 | Direct current brush-less coaxial rotary vane pump with adjustable speed |
| CN101709700A (en) * | 2009-11-12 | 2010-05-19 | 浙江万安科技股份有限公司 | Wet-type rotary vane electric vacuum pump for automobile |
| CN103206374A (en) * | 2012-01-17 | 2013-07-17 | 阿斯莫有限公司 | Electric pump |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109072918A (en) * | 2016-03-30 | 2018-12-21 | 莱宝有限公司 | Vacuum pump with muffler |
| US11274668B2 (en) | 2016-03-30 | 2022-03-15 | Leybold Gmbh | Vacuum pump having a silencer |
| CN106481556A (en) * | 2016-12-07 | 2017-03-08 | 嘉兴东唐汽车科技有限公司 | A kind of vavuum pump |
| CN109707628A (en) * | 2018-12-17 | 2019-05-03 | 陈鑫 | The aluminium alloy pump body structure of vacuum pump and the honing head processed for the pump housing |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20150066093A (en) | 2015-06-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |
Application publication date: 20150610 |
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| WD01 | Invention patent application deemed withdrawn after publication |