CN102713297A - Gear feed pump comprising a driving shaft, a driving toothed wheel, and a driven toothed wheel - Google Patents
Gear feed pump comprising a driving shaft, a driving toothed wheel, and a driven toothed wheel Download PDFInfo
- Publication number
- CN102713297A CN102713297A CN2010800506155A CN201080050615A CN102713297A CN 102713297 A CN102713297 A CN 102713297A CN 2010800506155 A CN2010800506155 A CN 2010800506155A CN 201080050615 A CN201080050615 A CN 201080050615A CN 102713297 A CN102713297 A CN 102713297A
- Authority
- CN
- China
- Prior art keywords
- gear
- housing
- transfer pump
- toothed wheel
- actuation gear
- 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.)
- Granted
Links
Images
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
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
-
- 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
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
- F04C15/0061—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
- F04C15/0073—Couplings between rotors and input or output shafts acting by interengaging or mating parts, i.e. positive coupling of rotor and shaft
-
- 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
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
- F04C15/0076—Fixing rotors on shafts, e.g. by clamping together hub and shaft
-
- 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
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/082—Details specially related to intermeshing engagement type machines or pumps
- F04C2/086—Carter
-
- 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
- F04C2230/00—Manufacture
- F04C2230/20—Manufacture essentially without removing material
- F04C2230/21—Manufacture essentially without removing material by casting
-
- 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
- F04C2230/00—Manufacture
- F04C2230/20—Manufacture essentially without removing material
- F04C2230/23—Manufacture essentially without removing material by permanently joining parts together
-
- 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
- F04C2240/50—Bearings
- F04C2240/51—Bearings for cantilever assemblies
-
- 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
- F04C2240/80—Other components
- F04C2240/801—Wear plates
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The invention relates to a gear feed pump comprising a driving shaft (28), a driving toothed wheel (34), a driven toothed wheel (36), a coupling element (32) between the driving shaft (28) and the driving toothed wheel (34), which couples the driving toothed wheel (34) to the driving shaft (28), and a housing section (31) comprising a housing surface (40a) parallel to the toothed wheels (34, 36), which forms an axial bearing at least for the coupling element (32). According to the invention, the housing surface (40a) is formed on an insert (42) that is cast or pressed into the housing section (31).
Description
Technical field
The present invention relates to a kind of gear transfer pump of the preamble according to claim 1.
Background technique
The gear transfer pump is known on market, for example in the fuel delivery means of internal-combustion engine, is used as preparatory transfer pump.In DE 100 14 548 A1, described a kind of gear transfer pump, in said gear transfer pump, in order to reduce wearing and tearing, the liquid that the lubricated utilization of the moveable part of said pump will be carried is especially realized through diesel fuel., between the zones of different of this gear pump, connect, thereby said fed sheet of a media is in the moveable part that said pump will lubricate for this reason.
Summary of the invention
The objective of the invention is to improve the fatigue strength of gear transfer pump.
This task is accomplished through gear transfer pump according to claim 1.Provide favourable improvement project in the dependent claims.In following explanation and accompanying drawing, further learn key character of the present invention, wherein, said characteristic not only can separately and can be important to the present invention with different combinations, after this this is no longer spelt out.
The present invention relates to a kind of gear transfer pump, as in the preparatory feedway of the fuel of internal-combustion engine, being used as preparatory transfer pump.But, also can determine gasoline feed, non-conventional engine fuel or alcohol or other suitable liquid according to gear transfer pump of the present invention.From this idea, the wear phenomenon in the gear transfer pump optimizes the position of present element mutual superposition ground sliding friction, especially when the power of said decision Sliding velocity and/or sliding friction surpasses average level.Confirm especially to influence the energy transfer from the live axle to the actuation gear from the axially mounting point of gear and the axially mounting point of linkage member according to the present invention for the gear transfer pump.
The housing parts of high-pressure service pump is usually made with aluminum alloy, for example utilizes the metal die casting.According to the present invention, the housing mask that is parallel to the gear of said gear transfer pump has inserting member, and said inserting member is cast or is pressed in the said housing parts.Said inserting member is casting and therefore grappling regularly when making said housing parts.Alternatively, said housing parts can have the suitable space of concave form, and said inserting member is pressed in the said space and therefore and is connected enduringly with said housing parts.Thus; Said inserting member forms the wearing and tearing shank type axially mounting that is used for linkage member at least; Inserting member is embodied as the for example form of annular disk; Its outer radius is equal to or greater than the radius of linkage member, wherein, for all the other housing parts can use other price suitable and for the best material of its significance.When producing, do not produce under the condition of big extra cost like this, improved the fatigue strength of gear transfer pump.
If it is said inserting member covers the radius region of said actuation gear and/or by the radius region of actuation gear, good especially according to the action effect of scheme of the present invention.In first expansion scheme, the said inserting member that is used for the axially mounting of linkage member is confirmed as bigger size, makes that the radius region of said actuation gear is centered on.Thus, the axially mounting of corresponding improvement also can be used in said actuation gear.In second expansion scheme, said housing parts equally said by the zone of actuation gear in additional inserting member.Like this, also improved said axially mounting to said by actuation gear.
In addition, said inserting member is with brass or Steel Alloy manufacturing.This production material is applicable to that especially well the material that forms durable sliding bearing is right.
If said housing parts belongs to the housing of high-pressure service pump and the end sections of the live axle that live axle is high-pressure service pump, it is significant especially using gear transfer pump according to the present invention.In addition, high-pressure service pump is used for the fuel conveying in automobile.For example, this task is distributed on two different pumps, and like this, first fuel transfer pump is configured to preparatory transfer pump, said preparatory transfer pump suction of fuel from fuel container, and with lower preparatory discharge pressure compression.Second fuel transfer pump is embodied as high-pressure piston pump and continues the fuel that the said preparatory transfer pump of compression is supplied with.For example can be used as preparatory transfer pump according to gear transfer pump of the present invention.Process a special compact structure unit through said gear transfer pump of direct connection and high-pressure service pump, in addition, said unit has long working life through measure according to the present invention.
Design proposal with gear transfer pump of very concrete, long especially working life and low simultaneously cost of production is proposed; Wherein, Said actuation gear and made with sintered steel by actuation gear; Said linkage member is used the Chromemanganese Steel manufacturing, and said live axle is used the chromium steel manufacturing, and said housing parts is made with aluminium material.For example, said linkage member is formed with Chromemanganese Steel 16MnCrS5, and said live axle is formed with chromium steel 100Cr6.
In addition, the housing face that on said inserting member, forms carries out planarization process with the housing face that radially centers on it.Therefore, said housing face and inserting member carry out planarization process in a working procedure, and thus, the Pingdu of said housing face amounts to raising and therefore avoids the relative Roughness of said inserting member with respect to the said housing face that radially centers on.
Description of drawings
Below will be according to annexed drawings set forth illustrative embodiments of the present invention.In the accompanying drawings:
Fig. 1 shows the view of the fuel delivery means that is used for internal-combustion engine;
Fig. 2 shows first embodiment of gear transfer pump; And
Fig. 3 shows second embodiment of gear transfer pump.
Embodiment
In institute's drawings attached and in different embodiments, the element of functional equivalent uses identical reference character to represent with size.
Fig. 1 shows the fuel delivery means that is used for internal-combustion engine 10, and internal-combustion engine 10 is installed in the automobile that does not show.Schematically show internal-combustion engine housing 12 among the figure, be arranged on the internal-combustion engine housing 12 with high-pressure delivery module 16 that gear transfer pump 14 forms fuel delivery means with high-pressure delivery module 16 as the gear transfer pump 14 of preparatory transfer pump.Inlet at gear transfer pump 14 connects suction pipe 18, is connected connecting tube 20 in outlet.Suction pipe 18 is fed from fuel container 22.High-pressure delivery module 16 is connected on the connecting tube 20 at inlet, is connected on the high pressure pipe line 24 in outlet, and high pressure pipe line 24 is directed to the not common rail function block 26 of sets forth in detail.
The housing of the housing of gear transfer pump 14 and high-pressure delivery module 16 is on the outside that is arranged in internal-combustion engine housing 12 squarely.At first at the 28 axial actuation gear transfer pumps 14 of the live axle shown in the cross sectional view of Fig. 2, in contrast, high-pressure delivery module 16 is radially moved through sightless cam drive or eccentric wheel transmission.Be graphical illustration better, suction pipe 18 and connecting tube 20 are presented at the outside of gear transfer pump 14.Because the major component of high-pressure delivery module 16 is contained in the internal-combustion engine housing 12, internal-combustion engine housing 12 also forms high-pressure service pump housing 30 at least in part, and the housing parts 31 with the aluminum alloy manufacturing of formative gear transfer pump 14, this is illustrated below again.
Fig. 2 shows first embodiment of gear transfer pump 14.Show the live axle of having mentioned 28 among Fig. 2 in the above, live axle 28 has from the end regions 29 of the zone protrusion of the housing parts 31 of the formative gear transfer pump 14 of high-pressure service pump housing 30.The end regions 29 of annular linkage member 32 and feed drive axle 28 for example through a dihedral and shape is sealed or force closure be connected, torque can be delivered on the linkage member 32 from live axle 28.Linkage member 32 axial engagement made from Chromemanganese Steel in the recess of the actuation gear made from sintered steel 34, and same sealed or force closure with said recess shape be connected, make torque to be delivered on the actuation gear 34 from linkage member 32.
Except that actuation gear 34, arrange by actuation gear 36.Two gears 34 and 36 are guided on each pivot pin 37 and are meshing with each other.Housing lid 38 is supplied gear transfer pump housing with housing parts 31.Other element of gear transfer pump 14 do not show, for example gets into possibly the installing of part that motion is carried in hole, tap hole, transfer passage, seal element or lubricated.
Inserting member 42 is pressed in the depression on the housing face 40 of actuation gear 34 of housing parts 31 of high-pressure service pump housing 30, its housing face 40 planes locking towards the outer surface and the high-pressure service pump housing 30 of actuation gear 34.The housing face 40a that need only above-mentioned outer surface itself forms housing parts 31.The housing face 40a of inserting member 42 reaches with the processing of passing through around the Pingdu between its housing face 40.Inserting member 42 is embodied as annular disk, and its radially outward edge is just over the radially outward edge of linkage member 32.
When 14 operations of gear transfer pump, live axle 28 rotates and drives these actuation gears 34 through linkage member 32.The housing face 40a of linkage member 32 contact inserts 42 and sliding into above it.Housing face 40a also is formed for the axially mounting of linkage member.Compare with the housing parts 31 of high-pressure service pump housing 30, avoid the wearing and tearing that cause because of sliding friction of linkage member 32 because of the other material property of inserting member 42.
Fig. 3 shows second embodiment of gear transfer pump 14, and it is identical in the structure aspects major part with embodiment according to Fig. 2.Below main their difference of explanation.Inserting member 42 has beguine according to the bigger diameter of the embodiment's of Fig. 2 inserting member 42 in according to the embodiment of Fig. 3, thereby the radially outward edge of inserting member 42 is just over the radially outward edge of actuation gear 34.Like this, the wearing and tearing that cause because of sliding friction can no longer appear in the zone of linkage member 32, but also can be reduced in the interior wearing and tearing in zone of actuation gear 34.
In other embodiments of the gear transfer pump that does not show, surface that can be through the said inserting member of further expansion with said by actuation gear included deal with said by the housing face of possible wearing and tearing of actuation gear or said high-pressure service pump housing and said by the possible wearing and tearing of actuation gear adjacent areas.Said inserting member also covers the radial zone of two gears.Said inserting member does not form annular disk, but form essentially rectangular or oval-shaped surface or approximate " 8 " and shape.
Claims (6)
1. a gear transfer pump (14); It has live axle (28), actuation gear (34), by actuation gear (36), linkage member (32) and housing parts (31) between said live axle (28) and actuation gear (34); Wherein, said linkage member (32) connects said actuation gear (34) and live axle (28), and said housing parts (31) has and is parallel to said gear (34; 36) housing face (40a); Said housing face (40a) forms the axially mounting that is used for said linkage member (32) at least, it is characterized in that
Said housing face (40a) is formed on the inserting member (42), and said inserting member (42) is cast or is pressed in the said housing parts (31).
2. gear transfer pump according to claim 1 (14) is characterized in that,
Said inserting member (42) covers the radial zone of said actuation gear (34) and/or by the radial zone of actuation gear (36).
3. according to any described gear transfer pump (14) in the aforementioned claim, it is characterized in that,
Said inserting member (14) is with brass or Steel Alloy manufacturing.
4. according to any described gear transfer pump (14) in the aforementioned claim, it is characterized in that,
Said housing parts (31) belongs to the housing (30) of high-pressure service pump (16), and said live axle (28) is the end sections (29) of the live axle (28) of said high-pressure service pump (16).
5. according to any described gear transfer pump (14) in the aforementioned claim, it is characterized in that,
Said actuation gear (3) 4 and/or used the sintered steel manufacturing by actuation gear (36), said linkage member (32) is used the Chromemanganese Steel manufacturing, and said live axle (28) uses the chromium steel manufacturing, and said housing parts (31) is made with aluminium material.
6. according to any described gear transfer pump (14) in the aforementioned claim, it is characterized in that,
The housing face (40a) that is configured on the said inserting member (32) carries out plane treatment with the housing face (40) that radially centers on it.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009029293.4 | 2009-09-09 | ||
| DE200910029293 DE102009029293A1 (en) | 2009-09-09 | 2009-09-09 | Gear pump with a drive shaft, a drive gear and a driven gear |
| PCT/EP2010/060694 WO2011029657A2 (en) | 2009-09-09 | 2010-07-23 | Gear feed pump comprising a driving shaft, a driving toothed wheel, and a driven toothed wheel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102713297A true CN102713297A (en) | 2012-10-03 |
| CN102713297B CN102713297B (en) | 2016-01-27 |
Family
ID=43535929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201080050615.5A Expired - Fee Related CN102713297B (en) | 2009-09-09 | 2010-07-23 | Comprise live axle, actuation gear and the gear-conveying pump by actuation gear |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2475890A2 (en) |
| CN (1) | CN102713297B (en) |
| DE (1) | DE102009029293A1 (en) |
| IN (1) | IN2012DN01959A (en) |
| WO (1) | WO2011029657A2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE112013006058A5 (en) * | 2012-12-18 | 2015-10-22 | Magna Powertrain Bad Homburg GmbH | Axial housing start-up surface |
| IT201700067446A1 (en) * | 2017-06-16 | 2018-12-16 | Gkn Sinter Metals Ag | Pump arrangement and process for producing a pump arrangement. |
| IT201700067438A1 (en) * | 2017-06-16 | 2018-12-16 | Gkn Sinter Metals Ag | Pump arrangement. |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3236571A (en) * | 1961-06-16 | 1966-02-22 | Faisandier Jacques | Friction surfaces |
| US4311445A (en) * | 1979-10-30 | 1982-01-19 | Tyrone Hydraulics, Inc. | Contaminant resistant gear pumps and motors with wear inserts |
| CN2307934Y (en) * | 1997-06-11 | 1999-02-17 | 庞玉伦 | Circular cycloidal pump |
| CN1321216A (en) * | 1999-08-27 | 2001-11-07 | 詹姆斯·B·蒂本 | Pump |
| US6425749B1 (en) * | 1999-03-29 | 2002-07-30 | Robert Bosch Gmbh | Coupling and fuel-supply pump with coupling |
| US20030180160A1 (en) * | 2000-03-23 | 2003-09-25 | Stanislaw Bodzak | Gear feed pump |
| CN201176931Y (en) * | 2008-02-02 | 2009-01-07 | 许从智 | Differential high-pressure rotor pump |
| CN201184298Y (en) * | 2008-03-12 | 2009-01-21 | 王志成 | Gear type slurry pump |
| CN101403382A (en) * | 2008-11-05 | 2009-04-08 | 北京航空航天大学 | Gear pump for micro-miniature turbojet engine |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1977335A (en) * | 1932-12-17 | 1934-10-16 | Gen Electric | Bearing and method of making same |
| US2202912A (en) * | 1938-03-17 | 1940-06-04 | Pump Engineering Service Corp | Gear pump and relief valve |
| US2809592A (en) * | 1954-01-13 | 1957-10-15 | Cessna Aircraft Co | Rotary pump or motor |
-
2009
- 2009-09-09 DE DE200910029293 patent/DE102009029293A1/en not_active Withdrawn
-
2010
- 2010-07-23 WO PCT/EP2010/060694 patent/WO2011029657A2/en active Application Filing
- 2010-07-23 CN CN201080050615.5A patent/CN102713297B/en not_active Expired - Fee Related
- 2010-07-23 EP EP10737035A patent/EP2475890A2/en not_active Withdrawn
-
2012
- 2012-03-05 IN IN1959DEN2012 patent/IN2012DN01959A/en unknown
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3236571A (en) * | 1961-06-16 | 1966-02-22 | Faisandier Jacques | Friction surfaces |
| US4311445A (en) * | 1979-10-30 | 1982-01-19 | Tyrone Hydraulics, Inc. | Contaminant resistant gear pumps and motors with wear inserts |
| CN2307934Y (en) * | 1997-06-11 | 1999-02-17 | 庞玉伦 | Circular cycloidal pump |
| US6425749B1 (en) * | 1999-03-29 | 2002-07-30 | Robert Bosch Gmbh | Coupling and fuel-supply pump with coupling |
| CN1321216A (en) * | 1999-08-27 | 2001-11-07 | 詹姆斯·B·蒂本 | Pump |
| US20030180160A1 (en) * | 2000-03-23 | 2003-09-25 | Stanislaw Bodzak | Gear feed pump |
| CN201176931Y (en) * | 2008-02-02 | 2009-01-07 | 许从智 | Differential high-pressure rotor pump |
| CN201184298Y (en) * | 2008-03-12 | 2009-01-21 | 王志成 | Gear type slurry pump |
| CN101403382A (en) * | 2008-11-05 | 2009-04-08 | 北京航空航天大学 | Gear pump for micro-miniature turbojet engine |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2475890A2 (en) | 2012-07-18 |
| DE102009029293A1 (en) | 2011-03-10 |
| WO2011029657A3 (en) | 2012-06-21 |
| CN102713297B (en) | 2016-01-27 |
| IN2012DN01959A (en) | 2015-08-21 |
| WO2011029657A9 (en) | 2012-04-26 |
| WO2011029657A2 (en) | 2011-03-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101389858B (en) | High pressure pump in particular for a fuel injection device on an internal combustion engine | |
| CN101529082B (en) | Piston pump, in particular fuel pump, having roller tappet | |
| US10371148B2 (en) | Vacuum pump | |
| CN201738961U (en) | Oil pump of transverse diesel engine | |
| JP6129483B2 (en) | Oil pump | |
| CN102713297A (en) | Gear feed pump comprising a driving shaft, a driving toothed wheel, and a driven toothed wheel | |
| US7775192B2 (en) | Radial piston pump for fuel injection system having improved high-pressure resistance | |
| CN103201515A (en) | Axial piston machine | |
| CN105627073A (en) | Rotor oil pump | |
| CN101749528A (en) | Built-in forced lubricating system of rocker arm of coal mining machine | |
| CN100545452C (en) | A kind of crescent gear pump | |
| CN205663609U (en) | Plunger pump | |
| CN1312397C (en) | Fuel oil jet pump | |
| CN214887279U (en) | Oil pump | |
| CN103392074A (en) | Coupling, rotor, and assembly for a pump | |
| CN201606243U (en) | Novel high-pressure gear pump | |
| CN201953966U (en) | Forced lubrication structure in drive axle | |
| CN201982945U (en) | Oil pump assembly | |
| CN2839647Y (en) | Gear pump | |
| CN114135518A (en) | Centrifugal fresh water pump | |
| US20110223049A1 (en) | Fuel Pump For Internal Combustion Engines | |
| CN2355134Y (en) | Twin screw pump | |
| CN201953656U (en) | Annular-pin structure type scroll compressor with lubrication groove on end face of movable disc | |
| CN212005135U (en) | Sealing assembly | |
| CN212430414U (en) | Engine oil pump cover |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160127 Termination date: 20180723 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |