CN201206520Y - Sump pump - Google Patents
Sump pump Download PDFInfo
- Publication number
- CN201206520Y CN201206520Y CNU2007200283398U CN200720028339U CN201206520Y CN 201206520 Y CN201206520 Y CN 201206520Y CN U2007200283398 U CNU2007200283398 U CN U2007200283398U CN 200720028339 U CN200720028339 U CN 200720028339U CN 201206520 Y CN201206520 Y CN 201206520Y
- Authority
- CN
- China
- Prior art keywords
- hand pump
- check
- pump
- diesel
- pressure
- 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
Links
- 230000000694 effects Effects 0.000 claims description 3
- 239000002283 diesel fuel Substances 0.000 abstract description 19
- 238000002347 injection Methods 0.000 abstract description 13
- 239000007924 injection Substances 0.000 abstract description 13
- 239000000446 fuel Substances 0.000 abstract 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- Fuel-Injection Apparatus (AREA)
Abstract
The utility model comprises a hand pump handle (1), a hand pump piston (2), a check valve (3), a check-valve spring (4), a check valve (5) and a check-valve spring (6). A bleed screw of a high-pressure fuel injection pump is loosened; the hand pump handle (1) is lifted to cause the hand pump piston (2) to move upwards, the lower cavity of a hand pump creates a vacuum, and an oil outlet of a drain pump is closed by the check valve (5) under the action of the check-valve spring (6); meanwhile, the diesel oil in a diesel oil tank can overcome the elastic force of the check-valve spring (4) through an oil inlet pipe under the action of the atmospheric pressure, and the check valve (3) is opened, and the diesel oil enters the lower cavity of the hand pump; the hand pump handle (1) is pressed downwards, the diesel oil in the lower cavity of the hand pump is compressed through the hand pump piston (2), the check valve (3) is closed, the check valve (5) is opened, and the diesel oil enters the low pressure cavity of a high-pressure pump through an oil outlet pipe; the hand pump handle is lifted and pressed for repeatedly, so that the diesel oil enters the low pressure cavity of the high-pressure pump continuously, and then the air in the lower pressure diesel system of the diesel engine is gradually vented; and then the bleed screw is tightly screwed, and the diesel engine can be started at the moment.
Description
Technical field
The drain pump that the utility model relates to is the improvement to former diesel oil oil transfer pump.
Technical background
Multi-cylinder diesel engine was furnished with oil transfer pump with high-pressure injection pump in the past, oil transfer pump can be got rid of the air in the diesel low-voltage oil-way system on the one hand, eccentric wheel by the high-pressure injection pump piston that drives oil transfer pump overcomes the elastic force of piston spring on the other hand, make piston reciprocates, thereby the diesel oil in the diesel fuel tanks is transported to continuously in the low-pressure cavity of high-pressure injection pump.
Summary of the invention
At above-mentioned labyrinth, the utility model provides a kind of drain pump.It is characterized by: on the basis of former oil transfer pump, component such as Rotor block in the former oil transfer pump, push rod, piston, piston spring have been removed, the emptying pump housing has been cancelled location outer rim, jogger hole, simplify the structure, only have the air function of getting rid of in the diesel low-voltage diesel systems, behind the diesel engine starting, the diesel oil in the diesel fuel tanks relies on the drawback movement of the plunger of high-pressure injection pump, be inhaled in the low-pressure cavity of high-pressure injection pump, to keep the proper functioning of high-pressure injection pump.
The existing relatively oil transfer pump of the utility model, simplified pump body structure, reduced requirement on machining accuracy to the pump housing, simplified processing technology, component such as piston in the existing oil transfer pump, spring, push rod, roller, seal ring have been removed simultaneously, thoroughly solve interior leakage problem, greatly reduced manufacture cost, improved reliability of products.Only have the function of getting rid of the air in the diesel low-voltage oil-way system, and the diesel oil in the diesel fuel tanks leans on the drawback movement of the plunger of high-pressure injection pump to be inhaled in the low-pressure cavity of high-pressure service pump.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified
Accompanying drawing is the present embodiment sectional view
1, hand pump handle 2, hand pump piston 3, safety check 4, check-valve spring 5, safety check 6, check-valve spring 7, oil inlet pipe 8, oil outlet tube 9, the hand pump housing 10, the emptying pump housing
Embodiment
Unclamp the bleed screw of high-pressure injection pump.Lift hand pump handle 1, make hand pump piston 2 up, the hand pump cavity of resorption forms vacuum, and safety check 5 has sealed the oil outlet of drain pump under the effect of check-valve spring 6.Simultaneously, the diesel oil in the diesel fuel tanks overcomes the elastic force of check-valve spring 4 by oil inlet pipe under the effect of atmospheric pressure, open the cavity of resorption that safety check 3 enters hand pump.Down push hand pump handle 1, the diesel oil in the hand pump piston 2 compression hand pump cavity of resorptions is closed safety check 3, and is opened safety check 5, the low-pressure cavity that enters high-pressure service pump by oil outlet tube.By repeatedly lifting and pushing the hand pump handle, diesel oil then enters the low-pressure cavity of high-pressure injection pump continuously, little by little the air in the diesel low-voltage diesel systems is got rid of clean.Then, tighten bleed screw.At this moment just can start diesel engine.
After the diesel engine starting, the diesel oil in the diesel fuel tanks relies on the drawback movement of the plunger of high-pressure injection pump, is inhaled in the low-pressure cavity of high-pressure injection pump, to keep the proper functioning of high-pressure injection pump.
Claims (1)
- A kind of drain pump, comprise hand pump handle (1), hand pump piston (2), safety check (3), check-valve spring (4), safety check (5), check-valve spring (6), it is characterized by: hand pump handle (1) is connected with hand pump piston (2), safety check (5) seals oil outlet under the effect of check-valve spring (6), can overcome check-valve spring (4) and open safety check (3), hand pump handle (1) drives hand pump piston (2) and closes safety check (3), can open safety check (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200283398U CN201206520Y (en) | 2007-09-22 | 2007-09-22 | Sump pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200283398U CN201206520Y (en) | 2007-09-22 | 2007-09-22 | Sump pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201206520Y true CN201206520Y (en) | 2009-03-11 |
Family
ID=40465585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200283398U Expired - Fee Related CN201206520Y (en) | 2007-09-22 | 2007-09-22 | Sump pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201206520Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102374315A (en) * | 2010-08-23 | 2012-03-14 | 无锡华润上华半导体有限公司 | One-way control valve, vacuum device for chip manufacture procedure and gas recoil preventing method |
| CN104929828A (en) * | 2015-06-25 | 2015-09-23 | 苏细调 | Fuel delivery pump |
| CN113103995A (en) * | 2021-04-15 | 2021-07-13 | 范耀东 | Defogging device for automobile side windshield |
-
2007
- 2007-09-22 CN CNU2007200283398U patent/CN201206520Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102374315A (en) * | 2010-08-23 | 2012-03-14 | 无锡华润上华半导体有限公司 | One-way control valve, vacuum device for chip manufacture procedure and gas recoil preventing method |
| CN104929828A (en) * | 2015-06-25 | 2015-09-23 | 苏细调 | Fuel delivery pump |
| CN113103995A (en) * | 2021-04-15 | 2021-07-13 | 范耀东 | Defogging device for automobile side windshield |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090311 Termination date: 20091022 |