CN201221424Y - Straight arranging type high-pressure pump for common rail system - Google Patents
Straight arranging type high-pressure pump for common rail system Download PDFInfo
- Publication number
- CN201221424Y CN201221424Y CNU2008200140401U CN200820014040U CN201221424Y CN 201221424 Y CN201221424 Y CN 201221424Y CN U2008200140401 U CNU2008200140401 U CN U2008200140401U CN 200820014040 U CN200820014040 U CN 200820014040U CN 201221424 Y CN201221424 Y CN 201221424Y
- Authority
- CN
- China
- Prior art keywords
- camshaft
- sliding bearing
- oil
- product
- rail system
- 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 - Lifetime
Links
- 239000002283 diesel fuel Substances 0.000 description 5
- 238000012546 transfer Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Landscapes
- Valve-Gear Or Valve Arrangements (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The utility model relates to an auxiliary product for an automobile diesel engine. To settle the existing problems of like products, a product with a novel structure is developed, consisting of a camshaft, a sliding bearing, a trunk piston and an electromagnetic valve. The sliding bearing is mounted on the camshaft, an oil-inlet small cavity hole is arranged at the axle center of the camshaft, and a small hole is arranged at the location of the sliding bearing, and the small hole is communicated with the oil-inlet small cavity hole arranged at the axle center of the camshaft; a trunk piston is respectively arranged vertically on the sliding bearing side by side in array, a valve member is arranged therein, and the valve member is communicated with the high-pressure joint through the oil way; and the operation of the trunk piston is controlled by the electromagnetic valve through the circuit. The number of parts and the size of the product are reduced, the product cost is lowered, and the product is more applicable to automobile diesel engines.
Description
Technical field
The utility model belongs to automobile manufacturing field, is a kind of auxiliary products of diesel engine of vehicle specifically.
Background technique
At present, external general high-pressure radial plunger pump, because of the construction profile size bigger; Camshaft is immersed in the stress-free diesel oil, and is relatively poor to the greasy property of camshaft when diesel engine starting or idle running, has a strong impact on quality of product.
The model utility content
The purpose of this utility model is the problem that exists at above-mentioned like product, researched and developed a kind of new structure product, it is on the sliding bearing of installing on the camshaft, be provided with plunger body respectively side by side in upright arrangemently, under the control of solenoid valve, make diesel stream enter high pressure co-rail system through high pressure joint, this designs simplification amount of parts, dwindle the volume of pump effectively, be more suitable for the supporting use of diesel engine of vehicle.
The in-line arrangement high-pressure service pump that is used for common rail system is to be made of camshaft, sliding bearing, plunger body, each parts of solenoid valve, it is characterized in that:
A) camshaft is provided with sliding bearing, and the axis part of camshaft is provided with the oil-feed little vestibule, and the sliding bearing position also is provided with aperture; Aperture and oil-feed little vestibule link;
B) plunger body is installed on the sliding bearing respectively side by side in upright arrangemently, is provided with valve member in it, valve member is linked by oil circuit and high pressure joint.
Good effect of the present utility model is, designs more scientific and reasonablely, simple in structure, and the camshaft center is provided with the oil transportation little vestibule, and links with the oil transportation aperture of sliding bearing, and the lubricated diesel oil band of camshaft is pressed operation, and greasy property is obviously improved; On the sliding bearing on the camshaft, difference erection column cock body in upright arrangement side by side, easy processing has reduced amount of parts; Improve product performance, reduced product cost.
Description of drawings
Fig. 1, the utility model general structure erection drawing; Wherein: 1 oil transfer pump, 2 camshafts, 3 little vestibules, 4 oil ducts, 5 solenoid valves, 6 high pressure joints, 7 valve members, 8 plungers, 9 plunger bodies, 10 apertures, 11 gears, 12 pump chambers, 13 sliding bearings.
Embodiment
In conjunction with the accompanying drawings, more specifically described as follows to structure of the present utility model.
Obviously as seen the utility model contrast accompanying drawing 1 is equipped with sliding bearing on the camshaft 2, and the axis part of camshaft is provided with oil-feed little vestibule 3, the oil-feed aperture 10 of sliding bearing 2 and oil-feed little vestibule 3 UNICOMs of camshaft; Plunger body 9 is installed respectively on the sliding bearing 13 side by side in upright arrangemently, is provided with valve member 7 in the plunger body 9, valve member 7 links by oil circuit and high pressure joint; Oil inlet quantity by circuit controling electromagnetic valve 5 pilot plunger 8.
When the utility model moves, diesel engine drives the camshaft rotation, makes the oil transfer pump operation produce 2-4bar low pressure diesel oil, enters in the middle hollow type cavity of camshaft, by oilhole between camshaft bearing journal and sliding bearing the crack pressure release to pump chamber, the pressure lubrication camshaft; So simultaneously, low pressure diesel oil also enters oil duct 4; When camshaft rotates, drive the plunger upward and downward in the plunger body, when plunger moved downward, diesel oil entered in the plunger body by valve member through electromagnetic valve; When plunger moves upward, produce the 0-1800bar high-pressure diesel, can enter high pressure co-rail system by high pressure joint.
This product beta test is respond well, and is quite popular with users.
Claims (1)
1. the in-line arrangement high-pressure service pump that is used for common rail system is to be made of camshaft (2), sliding bearing (13), plunger body (9), each parts of solenoid valve (5), it is characterized in that:
A) camshaft (2) is provided with sliding bearing (13), and the axis part of camshaft (2) is provided with oil-feed little vestibule (3), and sliding bearing (13) position also is provided with aperture (10); Aperture (10) links with oil-feed little vestibule (3);
B) on the sliding bearing (13) plunger body (9) is installed side by side in upright arrangemently respectively, is provided with valve member (7) in it, valve member (7) is linked by oil circuit and high pressure joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200140401U CN201221424Y (en) | 2008-07-16 | 2008-07-16 | Straight arranging type high-pressure pump for common rail system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200140401U CN201221424Y (en) | 2008-07-16 | 2008-07-16 | Straight arranging type high-pressure pump for common rail system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201221424Y true CN201221424Y (en) | 2009-04-15 |
Family
ID=40574932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200140401U Expired - Lifetime CN201221424Y (en) | 2008-07-16 | 2008-07-16 | Straight arranging type high-pressure pump for common rail system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201221424Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032084A (en) * | 2010-12-29 | 2011-04-27 | 龙口龙泵燃油喷射有限公司 | High-pressure common rail pump for small high-speed diesel engine |
| CN102102611A (en) * | 2011-03-14 | 2011-06-22 | 福建省莆田市中涵机动力有限公司 | In-line type fuel feed pump of high-pressure common rail system |
| CN103994000A (en) * | 2014-05-25 | 2014-08-20 | 辽宁新风企业集团有限公司 | Single-cylinder high-pressure oil pump used for diesel engine |
| CN105221315A (en) * | 2015-10-10 | 2016-01-06 | 辽宁新风企业集团有限公司 | Single cylinder diesel monoblock pump assembly |
-
2008
- 2008-07-16 CN CNU2008200140401U patent/CN201221424Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032084A (en) * | 2010-12-29 | 2011-04-27 | 龙口龙泵燃油喷射有限公司 | High-pressure common rail pump for small high-speed diesel engine |
| CN102102611A (en) * | 2011-03-14 | 2011-06-22 | 福建省莆田市中涵机动力有限公司 | In-line type fuel feed pump of high-pressure common rail system |
| CN102102611B (en) * | 2011-03-14 | 2014-05-28 | 福建省莆田市中涵机动力有限公司 | In-line type fuel feed pump of high-pressure common rail system |
| CN103994000A (en) * | 2014-05-25 | 2014-08-20 | 辽宁新风企业集团有限公司 | Single-cylinder high-pressure oil pump used for diesel engine |
| CN105221315A (en) * | 2015-10-10 | 2016-01-06 | 辽宁新风企业集团有限公司 | Single cylinder diesel monoblock pump assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20160224 Granted publication date: 20090415 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20160824 Granted publication date: 20090415 |
|
| PP01 | Preservation of patent right |
Effective date of registration: 20160824 Granted publication date: 20090415 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090415 |
|
| CX01 | Expiry of patent term | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20180716 Granted publication date: 20090415 |
|
| PD01 | Discharge of preservation of patent |