CN106930940A - The modified gear pump of the CB B25 of anti-Parking Entrance cavitation outlet plenum backflow - Google Patents
The modified gear pump of the CB B25 of anti-Parking Entrance cavitation outlet plenum backflow Download PDFInfo
- Publication number
- CN106930940A CN106930940A CN201710342349.7A CN201710342349A CN106930940A CN 106930940 A CN106930940 A CN 106930940A CN 201710342349 A CN201710342349 A CN 201710342349A CN 106930940 A CN106930940 A CN 106930940A
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- CN
- China
- Prior art keywords
- parking entrance
- outlet plenum
- backflow
- gear pump
- exit ramp
- 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
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/06—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention discloses the modified gear pump of the CB B25 of anti-Parking Entrance cavitation outlet plenum backflow, it belongs to hydraulic transmission technology field, and it is by the pump housing（1）, Parking Entrance（2）, exit ramp（3）Constitute.The present invention solves the cavitation of current external gear rotary pump Parking Entrance, the reflux problem of outlet plenum.
Description
Technical field
The invention discloses the modified gear pump of the CB-B25 of anti-Parking Entrance cavitation outlet plenum backflow, belong to hydraulic drive
Technical field.
Background technology
Hydraulic pump is the heart of hydraulic system, and gear pump is to answer a class with the most use in three major types pump.But current CB-
The exit ramp of B25 gear pumps, Parking Entrance be opened on end cap cause pipeline with import and export flow passage structure mutation cause Parking Entrance easy
Cavitation, outlet plenum is produced to be also easy to produce backflow, this causes, and gear pump service behaviour is unstable, noise is big, efficiency is low.The present invention is logical
The change that position is opened up to Parking Entrance and exit ramp is crossed, makes entrance pipe and Parking Entrance, entrance cavity, outlet plenum, exit ramp, outlet
Pipeline keeps coaxial line, prevents fluid media (medium) from flowing the mutation in direction, solves cavitation, the backflow phenomenon of outlet plenum of Parking Entrance.
The content of the invention
Regarding to the issue above, the technical problem to be solved in the present invention is to provide the CB- of anti-Parking Entrance cavitation outlet plenum backflow
The modified gear pump of B25.
To solve CB-25B gear pump inlets road cavitation, the phenomenon of outlet plenum backflow.The anti-Parking Entrance cavitation outlet of the present invention
The modified gear pump of the CB-B25 of chamber backflow, it is by the pump housing（1）, Parking Entrance（2）, exit ramp (3) constitute.Fluid media (medium)
Gear pump inlet road with pipeline coaxial line is directly entered by inlet duct（2）Subsequently into the pump housing（1）By with outlet plenum
The exit ramp of coaxial line（3）Flow into and exit ramp（3）The export pipeline of coaxial line.Avoid due to entering that the mutation of runner is caused
Mouth road cavitation, the backflow phenomenon of outlet plenum.
Beneficial effects of the present invention are：
By making entrance pipe and Parking Entrance（2）, the pump housing（1）, exit ramp（3）, keep coaxial line, prevent fluid media (medium) flowing side
To mutation, so as to reduce Parking Entrance cavitation, the possibility of outlet plenum backflow phenomenon occur.
Brief description of the drawings：
For ease of explanation, the present invention is described in detail by following accompanying drawings.
Fig. 1 is structural representation of the invention.
In figure：1st, the pump housing, 2, entrance cavity, 3, outlet plenum.
Specific embodiment：
To make the object, technical solutions and advantages of the present invention of greater clarity, below by the specific implementation shown in accompanying drawing
Example describes the present invention.Additionally, in the following description, the description to known features and technology is eliminated, to avoid unnecessarily
Obscure idea of the invention.
With reference to Fig. 1, this specific embodiment uses following technical scheme：The CB-B25 of anti-Parking Entrance cavitation outlet plenum backflow
Modified gear pump, by the pump housing（1）, Parking Entrance（2）, exit ramp (3) constitute, Parking Entrance（2）It is opened in the pump housing（1）Under just
Side, exit ramp（3）In the pump housing（1）Surface, Parking Entrance（2）, exit ramp（3）It is opened in the pump housing（1）It is interior.
The operation principle of this specific embodiment is：Fluid media (medium) is directly entered and pipeline coaxial line by inlet duct
Gear pump inlet road（2）Subsequently into the pump housing（1）By the exit ramp with outlet plenum coaxial line（3）Flow into and exit ramp（3）Altogether
The export pipeline of axis.
General principle of the invention and principal character and advantages of the present invention has been shown and described above.The technology of the industry
Personnel it should be appreciated that the present invention is not limited to the above embodiments, simply explanation described in above-described embodiment and specification this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.Application claims, protection domain by appending claims and
Its equivalent thereof.
Claims (1)
1. the modified gear pump of the CB-B25 of anti-Parking Entrance cavitation outlet plenum backflow, its composition includes：The pump housing（1）, Parking Entrance
（2）, exit ramp (3), it is characterised in that：Described Parking Entrance immediately below the pump housing, described exit ramp just going up in the pump housing
Just, described Parking Entrance, exit ramp are opened in the pump housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710342349.7A CN106930940A (en) | 2017-05-16 | 2017-05-16 | The modified gear pump of the CB B25 of anti-Parking Entrance cavitation outlet plenum backflow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710342349.7A CN106930940A (en) | 2017-05-16 | 2017-05-16 | The modified gear pump of the CB B25 of anti-Parking Entrance cavitation outlet plenum backflow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106930940A true CN106930940A (en) | 2017-07-07 |
Family
ID=59429883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710342349.7A Pending CN106930940A (en) | 2017-05-16 | 2017-05-16 | The modified gear pump of the CB B25 of anti-Parking Entrance cavitation outlet plenum backflow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106930940A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2042121U (en) * | 1988-10-03 | 1989-08-02 | 西安矿业学院 | Low-pulsation and low-noise gear pump |
| CN2152098Y (en) * | 1992-11-12 | 1994-01-05 | 泰兴县东进泵阀厂 | Swing line oil pump |
| CN2241782Y (en) * | 1996-01-18 | 1996-12-04 | 王永清 | Double-pressure combined pump |
| JP2011179364A (en) * | 2010-02-26 | 2011-09-15 | Isuzu Motors Ltd | Gear pump |
-
2017
- 2017-05-16 CN CN201710342349.7A patent/CN106930940A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2042121U (en) * | 1988-10-03 | 1989-08-02 | 西安矿业学院 | Low-pulsation and low-noise gear pump |
| CN2152098Y (en) * | 1992-11-12 | 1994-01-05 | 泰兴县东进泵阀厂 | Swing line oil pump |
| CN2241782Y (en) * | 1996-01-18 | 1996-12-04 | 王永清 | Double-pressure combined pump |
| JP2011179364A (en) * | 2010-02-26 | 2011-09-15 | Isuzu Motors Ltd | Gear pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170707 |
|
| WD01 | Invention patent application deemed withdrawn after publication |