CN2670625Y - Self controlled pressure regulating pump - Google Patents
Self controlled pressure regulating pump Download PDFInfo
- Publication number
- CN2670625Y CN2670625Y CNU200320120165XU CN200320120165U CN2670625Y CN 2670625 Y CN2670625 Y CN 2670625Y CN U200320120165X U CNU200320120165X U CN U200320120165XU CN 200320120165 U CN200320120165 U CN 200320120165U CN 2670625 Y CN2670625 Y CN 2670625Y
- Authority
- CN
- China
- Prior art keywords
- pump
- pressure
- outlet
- control switch
- inlet
- 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.)
- Expired - Fee Related
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- Details And Applications Of Rotary Liquid Pumps (AREA)
- Rotary Pumps (AREA)
Abstract
The utility model relates to a self-controlled pressure regulating pump which is composed of a gear pump. The utility model mainly comprises an automatic pressure-control switch which is arranged between an outlet and an inlet of the gear pump, an inlet of the automatic pressure-control switch is communicated with an outlet passage of the pump, and an outlet of the automatic pressure-control switch is communicated with an inlet passage of the pump. When the pressure at the outlet of the pump exceeds a set point, the automatic pressure-control switch can be opened automatically and turn the medium at the outlet of the pump back to the side of the inlet of the pump. The utility model can regulate the pressure at the outlet of the pump automatically and ensure the safe and reliable service of fuel transfer lines and is an ideal fuel transfer pump on a delivery pipeline of a fuel tank truck.
Description
Technical field
The utility model relates to the medium supercharging device on a kind of pipe-line for conveying liquids, specifically about a kind of oil pump.
Background technique
An oil pump all is installed on the oil outlet tube of fuel tank, the oil in the fuel tank can be pumped in the needed purpose container smoothly.At present, using more pump on fuel tank is gear oil pump, the transmission shaft of its driving gear and the propeller shaft couplings of oily car, and can be in oily car operator cabin being connected or separating of control gear transmission shaft and oily car transmission shaft.Yet the oil pump that existing fuel tank uses has only supercharging to pump the effect of medium, does not have pressure security control function, makes the overpressure that is connected in the pump discharge pipeline easily, and security incidents such as generation booster leakage of oil.So the fuel tank that capacity is bigger all will be installed safety valve on the pump discharge pipeline, when the pressure on the pump discharge pipeline surpassed setting value, safety valve will be opened automatically.But, so just increased the complexity of fuel tank pipeline and the safety reliability of consequent mechanical aspects.
The model utility content
The purpose of this utility model is the problem that exists at prior art, and a kind of automatic control pressure-regulating pump with automatic control outlet pressure function is provided.
The technology that realizes the utility model purpose comprises gear pump, mainly is that the pressure automatic control switch is housed between gear delivery side of pump and import, and the import of described pressure automatic control switch is connected with the pump discharge passage, and outlet is connected with the pump inlet passage.
In above scheme, the pressure automatic control switch is made up of control flap, spool, control spring and valve body and valve gap, and control spring is installed between control flap and the valve gap.
The utility model beneficial effect compared with prior art is that the pressure automatic control switch is housed between gear delivery side of pump and import, when delivery side of pump pressure surpasses setting value, the pressure automatic control switch can be opened automatically, the delivery side of pump medium is got back to the suction side of pump, can regulate delivery side of pump pressure automatically, guarantee the safe and reliable operation of pipeline road.
Description of drawings
Fig. 1 is a structure sectional view of the present utility model.
Fig. 2 is the structural representation of the utility model pressure automatic control switch.
Embodiment
Automatic control pressure-regulating pump as shown in Figure 1, constitute by gear pump, pressure automatic control switch 4 is housed between gear delivery side of pump and import, described pressure automatic control switch 4 is a safety valve, form by control flap 12, spool, control spring 13 and valve body 6 and valve gap 15, control spring 13 is installed between control flap 12 and the valve gap 15, is provided with sealing gasket 14 between valve gap 15 and the valve body 6.Spool is in the middle of control spring 13, and an end is fixedlyed connected with control flap 12, and the other end is located in the hole of valve gap 15.The suction side of control flap 12 is connected with pump discharge, and outlet side is connected with pump inlet, and when pump discharge pressure surpassed the spring force of control spring 13, control flap 12 was open, and the pump discharge medium will be got back to the pump inlet side by control flap 12 and valve body 6 inner chambers.Gear pump is made of the pump housing 1 and the driving gear 2 that cooperatively interacts and driven gear 8, and the driving shaft 3 that driving gear 2 is connected is driven by the transmission shaft of oily car.Driving gear 2, driven gear 8 are installed on the pump housing 1 by the connecting plate 7,10 at two ends by driving shaft 3, driven shaft 5 respectively, are respectively equipped with bearing in the middle of the two ends of driving shaft 3 and driven shaft 5 and the connecting plate 7,10, and by end cap 9,11 encapsulation.
Claims (2)
1, a kind of automatic control pressure-regulating pump comprises gear pump, it is characterized in that being equipped with between gear delivery side of pump and import pressure automatic control switch (4), and the import of described pressure automatic control switch (4) is connected with the pump discharge passage, and outlet is connected with the pump inlet passage.
2, automatic control pressure-regulating pump according to claim 1, it is characterized in that pressure automatic control switch (4) is made up of control flap (12), spool, control spring (13) and valve body (6) and valve gap (15), control spring (13) is installed between control flap (12) and the valve gap (15), the suction side of control flap (12) is connected with pump discharge, and outlet side is connected with pump inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200320120165XU CN2670625Y (en) | 2003-11-29 | 2003-11-29 | Self controlled pressure regulating pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200320120165XU CN2670625Y (en) | 2003-11-29 | 2003-11-29 | Self controlled pressure regulating pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2670625Y true CN2670625Y (en) | 2005-01-12 |
Family
ID=34475819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200320120165XU Expired - Fee Related CN2670625Y (en) | 2003-11-29 | 2003-11-29 | Self controlled pressure regulating pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2670625Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705229A (en) * | 2012-01-13 | 2012-10-03 | 陈华军 | Pressure regulating gear pump |
| CN104361261A (en) * | 2014-12-08 | 2015-02-18 | 中国人民解放军防化学院 | Gear pump health state evaluation method based on profust reliability theory |
-
2003
- 2003-11-29 CN CNU200320120165XU patent/CN2670625Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705229A (en) * | 2012-01-13 | 2012-10-03 | 陈华军 | Pressure regulating gear pump |
| CN102705229B (en) * | 2012-01-13 | 2015-04-08 | 陈华军 | Pressure regulating gear pump |
| CN104361261A (en) * | 2014-12-08 | 2015-02-18 | 中国人民解放军防化学院 | Gear pump health state evaluation method based on profust reliability theory |
| CN104361261B (en) * | 2014-12-08 | 2017-03-29 | 中国人民解放军防化学院 | A kind of gear pump health state evaluation method theoretical based on profust reliability |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |