CN106014909B - Duplex pump - Google Patents
Duplex pump Download PDFInfo
- Publication number
- CN106014909B CN106014909B CN201610332498.0A CN201610332498A CN106014909B CN 106014909 B CN106014909 B CN 106014909B CN 201610332498 A CN201610332498 A CN 201610332498A CN 106014909 B CN106014909 B CN 106014909B
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- Prior art keywords
- oil
- vacuum pump
- pump body
- pump
- duct
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Classifications
-
- 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
- F04B23/00—Pumping installations or systems
- F04B23/04—Combinations of two or more 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
- F04B39/02—Lubrication
- F04B39/0284—Constructional details, e.g. reservoirs in the casing
-
- 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
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/122—Cylinder block
-
- 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
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
-
- 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
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
-
- 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
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/18—Lubricating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N13/00—Lubricating-pumps
Abstract
The invention discloses a kind of duplex pump, pump cover, oil pump body, middle transition plate and vacuum pump body are connected in turn, and one end of connecting shaft is rotatably connected in pump cover, and the other end is rotatably connected in vacuum pump body；Middle transition plate is equipped with vacuum pump inlet channel, and vacuum pump inlet channel is communicated by the pipeline in middle transition plate and vacuum pump body with the air pump chamber in vacuum pump body；Pump cover is equipped with the oil inlet of lubricating oil pump, the oil inlet is communicated with the oil pump chamber of lubricating oil pump, vacuum pump body is equipped with the main oil gallery feedback oil duct communicated with the feedback oil duct of lubricating oil pump, and main oil gallery feedback oil duct communicates with rotating joint in connecting shaft and provides machine oil.After using the above structure, the volume of two pumps is greatly saved, is more applicable for the engine location of small space；Also, it solves the problems, such as frictional heating deformation, makes that structure is compacter, volume smaller, the service life is longer, reduce maintenance cost and use cost.
Description
Technical field
The present invention relates to the technical fields of pump, are especially a kind of duplex pump.
Background technology
Vacuum pump is typically all power-assisted, constantly takes out air on one side, and another side keeps an atmospheric pressure, formed so negative
Pressure will produce and inhale past power, generates the power pushed through in other words, thus achieve the purpose that power-assisted.And lubricating oil pump is by machine
After oil is increased to certain pressure, forcibly it is sent on the moving surface of each part of engine and is lubricated.In order to by machine oil
Lubricating oil in pump can be quickly and stably delivered on the moving surface of each part, it will usually configure a vacuum pump to carry
For power-assisted.But automobile engine is the very compact environment in space, part is more, and the space occupied is bigger, vacuum pump and
After each self installation of lubricating oil pump, making entire engine just becomes huger.In the prior art, occur one kind can by vacuum pump and
The combined duplex pump of fuel pump, it includes pump cover, fuel pump body, vacuum pump body and connecting shaft, pump cover and fuel pump
Oil pump chamber is formed between body, air pump chamber is formed between fuel pump body and vacuum pump body, oil pump intracavitary is provided with fuel oil pump rotor, gas
Vacuum pump rotor is provided in pump chamber, fuel oil pump rotor and vacuum pump rotor are serially connected in connecting shaft, and connecting shaft is outer for connecting
Boundary's driving device is provided with the exhaust passage for exhaust in vacuum pump body, is provided in vacuum pump body and is connected to exhaust passage
Vacuum pump adapter and air inlet pipe for air inlet.Although this duplex pump realizes the work(of vacuum pump and fuel pump simultaneously
Can, but for the combination of vacuum pump and lubricating oil pump, it haves the shortcomings that following：
1）Since fuel pump and lubricating oil pump make a big difference, it is not only in structure there is prodigious difference, the two
Operation principle is also different, it is thus impossible to which equally thinking can be real instead of fuel pump in the prior art by lubricating oil pump
Now it is combined into as duplex pump with vacuum pump；
2）In this duplex pump in the prior art, the air inlet pipe of vacuum pump is arranged in vacuum pump body, with exhaust passage
The vacuum pump adapter communicated is also disposed in vacuum pump body, in this way, the structure inside vacuum pump body is considerably complicated, external zero
Part is also huge, it is thus impossible to meet the small space at engine；
3）In addition, connecting shaft should be rotatably connected in vacuum pump body in the prior art, it is rotatably connected on fuel pump again
In vivo, this at two rotation connection director's time be in contact friction, connecting shaft either fuel pump body or vacuum pump can be caused
Therefore the abrasion of body greatly shortens the service life of duplex pump, once damage needs replacing entire duplex pump, or remove more
Renewal part is changed, no matter how to handle, can all increase use cost.
Invention content
The technical problem to be solved by the invention is to provide a kind of simple in structure, volume compact, with long service life it is used for
The duplex pump that lubricating oil pump and vacuum pump combine.
In order to solve the above technical problems, duplex pump provided by the invention, it include pump cover, oil pump body, middle transition plate,
Vacuum pump body and connecting shaft；Pump cover, oil pump body, middle transition plate and the vacuum pump body is connected in turn, pump cover
Oil pump chamber is formed between oil pump body, and air pump chamber is formed between middle transition plate and vacuum pump body；One end of connecting shaft rotates
It is connected in pump cover, the other end is rotatably connected in vacuum pump body, while connecting shaft middle part and oil pump body and middle transition plate
Rotation connection；The middle transition plate is equipped with vacuum pump inlet channel, vacuum pump inlet channel by middle transition plate and
Pipeline in vacuum pump body is communicated with the air pump chamber in vacuum pump body；The pump cover is equipped with the oil inlet of lubricating oil pump, should be into
Hydraulic fluid port is communicated with the oil pump chamber of lubricating oil pump, and vacuum pump body is equipped with the main oil gallery feedback oil communicated with the feedback oil duct of lubricating oil pump
Road, and main oil gallery feedback oil duct communicates with rotating joint in connecting shaft and provides machine oil.
The first oil duct is equipped in the vacuum pump body, one end of first oil duct is communicated with main oil gallery feedback oil duct, separately
One end is communicated by middle transition plate with the feedback oil duct of lubricating oil pump.
The second oil duct is equipped in the middle transition plate, and the one side contacted with oil pump body is anti-equipped with main oil gallery
Oil groove is presented, one end of the second oil duct is communicated with the first oil duct, and the other end is connected to main oil gallery feedback oil groove, and main oil gallery feeds back oil groove
It is simultaneously the feedback oil duct of lubricating oil pump.
Cell wall of the main oil gallery feedback oil groove at connecting shaft pilot hole is equipped with the first oilhole, and the first oilhole passes through
Wear main oil gallery feedback oil groove and connecting shaft pilot hole.
It is assembled by the second oilhole and connecting shaft at the interior side port that main oil gallery feeds back oil duct in the vacuum pump body
Hole is connected to, and oil groove is equipped on the hole wall of the connecting shaft pilot hole of vacuum pump body, and the oil groove is peripherally disposed.
The middle transition plate face to the end face of vacuum pump body be equipped with air inlet duct, the vacuum pump inlet channel with
Air inlet duct communicates, and air inlet duct is communicated with the air pump chamber in vacuum pump body.
Close-fitting has sliding sleeve at the rotation connection of connecting shaft Yu the middle transition plate, and the wall body of the sliding sleeve is equipped with lubrication
Aperture, and the lubrication groove being connected to lubrication aperture is equipped on sliding sleeve madial wall at lubrication aperture, one end of the lubrication groove is prolonged
Extend to the port edge of sliding sleeve.
Close-fitting has sliding sleeve at the rotation connection of the connecting shaft and vacuum pump body, and the wall body of the sliding sleeve is small equipped with lubricating
Hole, and the lubrication groove being connected to lubrication aperture is equipped on sliding sleeve madial wall at lubrication aperture, one end of the lubrication groove extends
To the port edge of sliding sleeve.
The grooving through sliding sleeve both ends, the sliding sleeve side of grooving side are equipped on the wall body of each sliding sleeve in the axial direction
There is the groove to concave, the sliding sleeve marginal center of the grooving other side to have the convex block coordinated with groove in the middle part of edge.
The endface that the vacuum pump body is close to middle transition plate is equipped with along end profile for housing sealing ring
Seal groove.
After using the above structure, compared with prior art, the present invention having the following advantages that：
1）Lubricating oil pump and vacuum pump are dexterously combined together by this duplex pump, and are driven by same root connecting shaft, this
The volume of two pumps is greatly saved in sample, and the air inlet of vacuum pump carries out the communication with air pump chamber by middle transition plate, more
Add the engine location suitable for small space；Also, in connecting shaft in each pivoting friction pair by the machine oil in lubricating oil pump Lai
Lubrication is provided, solves the problems, such as frictional heating deformation, without external lubricating arrangement, make structure is compacter, volume more
It is small, the service life is longer, reduce maintenance cost and use cost；
2）Oil duct is fed back by the way that machine oil is introduced the second oil duct, the first oil duct, main oil gallery from the feedback oil circuit of lubricating oil pump
Enter with the second oilhole at the rotation connection of connecting shaft and vacuum pump body, without introducing lubricating oil from the external world, can realize lubrication
Function, and volume, part can be reduced, save cost；Equally, by the way that machine oil is introduced the first oil from the feedback oil circuit of lubricating oil pump
Hole enters connecting shaft at the rotation connection of middle transition plate, introduces lubricating oil without from the external world, can realize lubricating function,
Volume, part can be reduced again, save cost；
3）The design that aperture and lubrication groove are lubricated on sliding sleeve, makes the machine oil introduced from the first oilhole or the second oilhole
It can enter in sliding sleeve more unobstructedly, to ensure the fluency and duration of lubrication；
4）The setting of grooving on sliding sleeve is to make sliding sleeve have certain elasticity, the convenient dress with connecting shaft of one side
Match, it is on the other hand stuck with connecting shaft also for that can prevent during the motion；In addition, the cooperation of grooving upper groove and convex block,
Make to prevent the opening of grooving excessive and influence to use, and also to which the sliding sleeve edge of grooving both sides can be preferably located by connecting on
Together.
Description of the drawings
Fig. 1 is the structural schematic diagram of duplex pump of the present invention.
Fig. 2 is the structural schematic diagram of duplex pump intermediate pump body of the present invention.
Fig. 3 is the structural schematic diagram of another angle of Fig. 2.
Fig. 4 is the structural schematic diagram of middle transition plate in duplex pump of the present invention.
Fig. 5 is the structural schematic diagram of another angle of Fig. 4.
Fig. 6 is the structural schematic diagram of the connecting shaft with rotor of engine oil pump and vacuum pump rotor in duplex pump of the present invention.
Fig. 7 is the structural schematic diagram of connecting shaft and sliding sleeve in duplex pump of the present invention.
Fig. 8 is the structural schematic diagram of sliding sleeve in duplex pump of the present invention.
Wherein, 1, pump cover；2, oil pump body；3, middle transition plate；4, vacuum pump body；5, oil inlet；6, vacuum pump air inlet
Channel；7, main oil gallery feeds back oil duct；8, the first oil duct；9, seal groove；10, the second oilhole；11, oil groove；12, air inlet duct；13,
Two oil ducts；14, the first oilhole；15, main oil gallery feeds back oil groove；16, connecting shaft；17, sliding sleeve；18, aperture is lubricated；19, lubrication groove；
20, grooving；21, convex block；22, groove.
Specific implementation mode
Present invention will be explained in further detail with reference to the accompanying drawings and detailed description.
By the structural schematic diagram of Fig. 1~duplex pump of the present invention shown in Fig. 8 it is found that it include pump cover 1, oil pump body 2, in
Between rebound 3, vacuum pump body 4 and connecting shaft 16.Pump cover 1, oil pump body 2, middle transition plate 3 and the vacuum pump body 4 according to
It is secondary to link together, oil pump chamber is formed between pump cover 1 and oil pump body 2, and gas is formed between middle transition plate 3 and vacuum pump body 4
Pump chamber.One end of connecting shaft 16 is rotatably connected in pump cover 1, and the other end is rotatably connected in vacuum pump body 4, while connecting shaft 16
Middle part is rotatablely connected with oil pump body 2 and middle transition plate 3.The middle transition plate 3 is equipped with vacuum pump inlet channel 6,
Vacuum pump inlet channel 6 is communicated by the pipeline in middle transition plate 3 and vacuum pump body 4 with the air pump chamber in vacuum pump body 4.Institute
The pump cover 1 stated is equipped with the oil inlet 5 of lubricating oil pump, which communicates with the oil pump chamber of lubricating oil pump, and vacuum pump body 4 is equipped with
The main oil gallery feedback oil duct 7 communicated with the feedback oil duct of lubricating oil pump, and main oil gallery feedback oil duct 7 is rotated in connecting shaft 16
Tie point communicates and provides machine oil.
The first oil duct 8 is equipped in the vacuum pump body 4, one end and the main oil gallery of first oil duct 8 feed back 7 phase of oil duct
Logical, the other end is communicated by middle transition plate 3 with the feedback oil duct of lubricating oil pump.
The second oil duct 13 is equipped in the middle transition plate 3, and the one side contacted with oil pump body 2 is equipped with main oil
Road feeds back oil groove 15, and one end of the second oil duct 13 is communicated with the first oil duct 8, and the other end is connected to main oil gallery feedback oil groove 15, main
It is the feedback oil duct of lubricating oil pump that oil duct, which feeds back oil groove 15 simultaneously,.
Cell wall of the described main oil gallery feedback oil groove 15 at 16 pilot hole of connecting shaft is equipped with the first oilhole 14, and first
Oilhole 14 is through main oil gallery feedback oil groove 15 and 16 pilot hole of connecting shaft.
Pass through the second oilhole 10 and connecting shaft at the interior side port that main oil gallery feeds back oil duct 7 in the vacuum pump body 4
16 pilot holes are connected to, and oil groove 11 is equipped on the hole wall of the connecting shaft pilot hole of vacuum pump body 4, and the oil groove 11 is circumferentially square
To setting.
The end face of the middle transition plate 3 towards vacuum pump body 4 is equipped with air inlet duct 12, and the vacuum pump air inlet is logical
Road 6 is communicated with air inlet duct 12, and air inlet duct 12 is communicated with the air pump chamber in vacuum pump body 4.
Close-fitting has sliding sleeve 17 at the rotation connection of connecting shaft 16 Yu the middle transition plate 3, on the wall body of the sliding sleeve 17
Equipped with lubrication aperture 18, and the lubrication groove being connected to lubrication aperture 18 is equipped on 17 madial wall of sliding sleeve at lubrication aperture 18
19, one end of the lubrication groove 19 extends to the port edge of sliding sleeve 17.
Close-fitting has sliding sleeve 17 at the rotation connection of connecting shaft 16 Yu the vacuum pump body 4, is set on the wall body of the sliding sleeve 17
There is lubrication aperture 18, and be equipped with the lubrication groove 19 being connected to lubrication aperture 18 on 17 madial wall of sliding sleeve at lubrication aperture 18,
One end of the lubrication groove 19 extends to the port edge of sliding sleeve 17.
The grooving 20 through 17 both ends of sliding sleeve, 20 side of grooving are equipped on the wall body of each sliding sleeve 17 in the axial direction
17 marginal center of sliding sleeve there is the groove 22 that concaves, 17 marginal center of sliding sleeve of 20 other side of grooving has matches with groove 22
The convex block 21 of conjunction.It, can also it is known that the shape of groove 22 and convex block 21 is arc-shaped from attached drawing 8 in the present embodiment
It is trapezoidal, triangle or rectangle, these each fall within protection scope of the present invention.
The endface that the vacuum pump body 4 is close to middle transition plate 3 is equipped with along end profile for housing sealing ring
Seal groove 9.
The lubricant passage way trend of the present invention is as follows：Connecting shaft 16 and the sliding sleeve at 3 rotation connection of middle transition plate are gone all the way
Lubricant passage way on 17, the machine oil in the main oil gallery feedback oil groove 15 of lubricating oil pump pass sequentially through the first oilhole 14, on sliding sleeve 17
Aperture 18, lubrication groove 19 are lubricated, to make that there is lubricating action between connecting shaft 16 and sliding sleeve 17；Another way go connecting shaft 16 with
The main oil gallery of the lubricious oil circuit on sliding sleeve 17 at 4 rotation connection of vacuum pump body, lubricating oil pump feeds back the machine oil in oil groove 15 successively
Pass through the lubrication aperture 18 on the second oil duct 13, the first oil duct 8, main oil gallery feedback oil duct 7, the second oilhole 10, sliding sleeve 17, lubrication
Slot 19, to make that there is lubricating action between connecting shaft 16 and sliding sleeve 17.
The present invention gas circuit be：External air source enters from the vacuum pump inlet channel 6 on intermediate rebound 3, directly arrives
It is communicated with the air pump chamber in vacuum pump body 4 after up to air inlet duct 12.
The above is only preferably feasible implementation example of the invention, cannot therefore be the interest field for limiting to the present invention,
For those skilled in the art, other all made with technical scheme of the present invention and technical concept are various corresponding
Change should all belong within the protection domain of the claims in the present invention.
Claims (1)
1. a kind of duplex pump, it is characterised in that：It includes pump cover（1）, oil pump body（2）, middle transition plate（3）, vacuum pump body
（4）And connecting shaft（16）；The pump cover（1）, oil pump body（2）, middle transition plate（3）And vacuum pump body（4）It is sequentially connected
Together, pump cover（1）With oil pump body（2）Between formed oil pump chamber, middle transition plate（3）With vacuum pump body（4）Between formed
Air pump chamber；Connecting shaft（16）One end be rotatably connected on pump cover（1）Interior, the other end is rotatably connected on vacuum pump body（4）It is interior, simultaneously
Connecting shaft（16）Middle part and oil pump body（2）With middle transition plate（3）Rotation connection；The middle transition plate（3）It is equipped with
Vacuum pump inlet channel（6）, the air inlet of vacuum pump passes through middle transition plate（3）With vacuum pump body（4）Interior air pump chamber communicates；Institute
The pump cover stated（1）It is equipped with the oil inlet of lubricating oil pump（5）, the oil inlet（5）It is communicated with the oil pump chamber of lubricating oil pump, vacuum pump body
（4）It is equipped with the main oil gallery feedback oil duct communicated with the feedback oil duct of lubricating oil pump（7）, and the main oil gallery feeds back oil duct（7）With
Connecting shaft（16）With middle transition plate（3）Rotation connection at and and connecting shaft（16）And vacuum pump body（4）Rotation connection
Place communicates and provides machine oil；
The vacuum pump body（4）Inside it is equipped with the first oil duct（8）, first oil duct（8）One end and main oil gallery feed back oil duct（7）
It communicates, the other end passes through middle transition plate（3）It is communicated with the feedback oil duct of lubricating oil pump；
The middle transition plate（3）Inside it is equipped with the second oil duct（13）, and and oil pump body（2）The one side of contact is equipped with master
Oil duct feeds back oil groove（15）, the second oil duct（13）One end and the first oil duct（8）It communicates, the other end feeds back oil groove with main oil gallery
（15）Connection, main oil gallery feed back oil groove（15）It is simultaneously the feedback oil duct of lubricating oil pump；
The main oil gallery feeds back oil groove（15）Close to connecting shaft（16）Cell wall at pilot hole is equipped with the first oilhole（14）, the
One oilhole（14）Oil groove is fed back through main oil gallery（15）And connecting shaft（16）Pilot hole；
The vacuum pump body（4）Inherent main oil gallery feeds back oil duct（7）Interior side port at pass through the second oilhole（10）With connect
Axis（16）Pilot hole is connected to, and in vacuum pump body（4）Connecting shaft pilot hole hole wall be equipped with oil groove（11）, the oil groove
（11）It is peripherally disposed；
The middle transition plate（3）Towards vacuum pump body（4）End face be equipped with air inlet duct（12）, the vacuum pump air inlet
Channel（6）With air inlet duct（12）It communicates, and air inlet duct（12）With vacuum pump body（4）Interior air pump chamber communicates, the air inlet duct
（12）It is equipped with a narrower bore for narrowing connectivity part aisle spare, the air inlet duct with the connectivity part with chute of air pump chamber（12）
It is connected to by narrower bore between air pump chamber, the cross-sectional area of the narrower bore is less than air inlet duct（12）Cross-sectional area；
The connecting shaft（16）With middle transition plate（3）Rotation connection at close-fitting have sliding sleeve（17）, the sliding sleeve（17）Wall
Body is equipped with lubrication aperture（18）, and sliding sleeve（17）In lubrication aperture on madial wall（18）Place is equipped with and lubrication aperture（18）Even
Logical lubrication groove（19）, the lubrication groove（19）One end extend to sliding sleeve（17）Port edge；
The connecting shaft（16）With vacuum pump body（4）Rotation connection at close-fitting have sliding sleeve（17）, the sliding sleeve（17）Wall body
It is equipped with lubrication aperture（18）, and sliding sleeve（17）In lubrication aperture on madial wall（18）Place is equipped with and lubrication aperture（18）Connection
Lubrication groove（19）, the lubrication groove（19）One end extend to sliding sleeve（17）Port edge；
Each sliding sleeve（17）Wall body in the axial direction be equipped with run through sliding sleeve（17）The grooving at both ends（20）, grooving（20）
The sliding sleeve of side（17）Marginal center has the groove to concave（22）, grooving（20）The sliding sleeve of the other side（17）Marginal center has
Have and groove（22）The convex block of cooperation（21）；
The vacuum pump body（4）With middle transition plate（3）The endface being close to is equipped with along end profile for housing sealing ring
Seal groove（9）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610332498.0A CN106014909B (en) | 2016-05-18 | 2016-05-18 | Duplex pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610332498.0A CN106014909B (en) | 2016-05-18 | 2016-05-18 | Duplex pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106014909A CN106014909A (en) | 2016-10-12 |
| CN106014909B true CN106014909B (en) | 2018-10-12 |
Family
ID=57098034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610332498.0A Active CN106014909B (en) | 2016-05-18 | 2016-05-18 | Duplex pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106014909B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111577604A (en) * | 2020-06-24 | 2020-08-25 | 湖南腾智机电有限责任公司 | Series pump |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006029553A1 (en) * | 2006-06-26 | 2007-12-27 | Pierburg Gmbh | Oil pump and vacuum pump module for internal combustion engines, has oil and vacuum pump and air conveying element of vacuum pump and oil conveying element of oil pump are connected with common drive shaft |
| CN202073612U (en) * | 2011-05-09 | 2011-12-14 | 中国重汽集团济南动力有限公司 | Seventh camshaft bush for diesel engine |
| US8961148B2 (en) * | 2011-07-19 | 2015-02-24 | Douglas G. Hunter | Unified variable displacement oil pump and vacuum pump |
| DE102012222753B4 (en) * | 2012-12-11 | 2016-08-04 | Schwäbische Hüttenwerke Automotive GmbH | Gas pump with sealing oil groove |
| CN204783654U (en) * | 2015-05-12 | 2015-11-18 | 南京依维柯汽车有限公司 | Sundstrand pump |
-
2016
- 2016-05-18 CN CN201610332498.0A patent/CN106014909B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106014909A (en) | 2016-10-12 |
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