CN2549182Y - Pressure limited oil recoverer for engine oil - Google Patents
Pressure limited oil recoverer for engine oil Download PDFInfo
- Publication number
- CN2549182Y CN2549182Y CN 02267844 CN02267844U CN2549182Y CN 2549182 Y CN2549182 Y CN 2549182Y CN 02267844 CN02267844 CN 02267844 CN 02267844 U CN02267844 U CN 02267844U CN 2549182 Y CN2549182 Y CN 2549182Y
- Authority
- CN
- China
- Prior art keywords
- oil
- pressure limiting
- limiting valve
- pressure
- valve body
- 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
Landscapes
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The utility model relates to a pressure limited oil returning device for engine, which comprises an engine oil pump shell 1, an oil return joint 2, a sealing gasket 3, an oil return pipe 4, a pressure limiting valve body 5, a pressure limiting valve 6, a spring 7 and a screw plug 8. The lower end surface of the engine oil pump shell 1 is provided with a hole 10 communicated with a main oil line 9, the opening of the hole 10 is provided with a screw 11, the pressure limiting valve body 5 with a small end having a screw tightly fastens the oil return joint 2 and the sealing gasket 3 on the lower end surface of the engine oil pump shell 1; the oil return pipe 4 is welded on the oil return joint 2. Moreover, the pressure limiting valve 6 and the spring 7 are arranged in the pressure limiting valve body 5, and the screw plug 8 presses tightly the spring 7 and the pressure limiting valve 6. When the oil pressure in the main oil line 9 reaches up to 490 KPa, the pressure limiting valve 6 is opened, and the oil, passing through the hole 10, the pressure limiting valve body 5, the oil return joint 2 and the oil return pipe 4, flows into the engine oil 13 contained in an engine oil plate 12. By the structure, the utility model prevents the problem of air bubble in the engine oil.
Description
One, technical field:
The utility model relates to a kind of engine motor oil pressure limiting oil return apparatus.
Two, technical background:
Existing homemade 462Q, the interior oil pressure of Oil passage was too high when the 465Q petrol engine exceeded refrigerator and high rotation speed operation, in the machine oil pump case, be provided with the pressure-limit valve and the spill port that communicate with main oil gallery, when oil pressure in the oil duct surpasses authorized pressure, machine oil collides, rubs with air from the spill port ejection on the oil pump casing through pressure-limit valve, make air enter machine oil and form a large amount of small bubble, the machine oil of carrying bubble secretly flows back to oil pan and pumps into main oil gallery again through sump strainer, fuel sucking pipe, oil pump, flows to each lubricant housings.Alveolate machine oil has reduced the lubricated and cooling effect to stressed work rubbing surface, newly-designed 465Q and 468Q petrol engine with the hydraulic valve clearance adjuster, air in the machine oil reduces the oil cylinder transmission stiffness of regulator after entering the clearance adjuster oil cylinder, reduced valve operating angle and lift, engine power performance is descended.
Three, summary of the invention:
The technical problem that the utility model solves provides a kind of engine motor oil pressure limiting oil return apparatus.It has limiting engine machine oil maximum pressure, prevents that air from entering machine oil, and the lubricated and cooling of the rubbing surface that guarantees respectively to work guarantees the advantage of hydraulic lash adjuster proper functioning.
The utility model improves on existing homemade 462Q, 465Q petrol engine oil pump and forms, and its technological scheme is that it comprises: machine oil pump case 1, oil returning pipe joint 2, sealing gasket 3, return tube 4, pressure limiting valve body 5, pressure-limit valve 6, spring 7, plug screw 8.Its improvement is: be provided with screw thread 11, the threaded pressure limiting valve body 5 of small end in the aperture that is provided with a hole 10 that communicates with main oil gallery 9, hole 10 on machine oil pump case 1 lower end surface oil returning pipe joint 2 and sealing gasket 3 are fastened on machine oil pump case 1 lower end surface, return tube 4 is welded on the oil returning pipe joint 2.Pressure-limit valve 6 is contained in the pressure limiting valve body 5 with spring 7, plug screw 8 compresses spring 7 and pressure-limit valve 6.
The utility model is compared with existing product, has solved air and has entered machine oil and produce a large amount of bubbles cause the abnormal problem of hydraulic lash adjuster work in machine oil, thereby guaranteed the advance of engine structure and main performance index.
Four, description of drawings:
Accompanying drawing 1 is a rear view of the present utility model.
Accompanying drawing 2 be accompanying drawing 1 along A---the sectional view of A line.
Accompanying drawing 3 be accompanying drawing 1 along B---the sectional view of B line.
Five, embodiment: now be described in further detail by embodiment in conjunction with the accompanying drawings:
Shown in accompanying drawing 1, accompanying drawing 2, the utility model comprises oil pump 1, oil returning pipe joint 2, sealing gasket 3, return tube 4, pressure limiting valve body 5, pressure-limit valve 6, spring 7, plug screw 8.Its improvement is: as shown in Figure 2, be provided with screw thread 11, the threaded pressure limiting valve body 5 of small end in the aperture that is provided with a hole 10 that communicates with main oil gallery 9, hole 10 on machine oil pump case 1 lower end surface oil returning pipe joint 2 and sealing gasket 3 are fastened on machine oil pump case 1 lower end surface, return tube 4 is welded on the oil returning pipe joint 2.Pressure-limit valve 6 is contained in the pressure limiting valve body 5 with spring 7, plug screw 8 compresses spring 7 and pressure-limit valve 6.
Motor is at low temperature and when running up, the pump oil mass of oil pump during greater than the dredge oil amount of whole lubricating system oil duct inner engine oil pressure increase, for preventing fault because of the too high generation damage parts of engine oil pressure, when the oil duct internal pressure reaches 490KPa, machine oil is to the pressure of pressure-limit valve 6 elastic force greater than 7 pairs of pressure-limit valves 6 of spring, pressure-limit valve 6 is opened, and machine oil flows into the machine oil 13 that oil pans 12 are held through hole 10, pressure limiting valve body 5, oil returning pipe joint 2, return tube 4 from main oil gallery 9.Do not contact in the machine oil reflux course, avoided producing in the machine oil problem of a large amount of bubbles with air.
Claims (1)
1. engine motor oil pressure limiting oil return apparatus, it comprises machine oil pump case (1), oil returning pipe joint (2), sealing gasket (3), return tube (4), pressure limiting valve body (5), pressure-limit valve (6), spring (7), plug screw (8); It is characterized in that: the aperture that machine oil pump case (1) lower end surface is provided with a hole (10) that communicates with main oil gallery (9), hole (10) is provided with screw thread (11), screw thread (1 1) is connected with the upper end of pressure limiting valve body (5), and oil returning pipe joint (2) and sealing gasket (3) are fastened on machine oil pump case (1) lower end surface by pressure limiting valve body (5), return tube (4) is welded on the oil returning pipe joint (2), and the plug screw (8) that pressure-limit valve (6) and spring (7) are contained in the pressure limiting valve body (5), plug screw (8) compresses spring (7) and pressure-limit valve (6) is arranged on the lower end of pressure limiting valve body (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02267844 CN2549182Y (en) | 2002-06-22 | 2002-06-22 | Pressure limited oil recoverer for engine oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02267844 CN2549182Y (en) | 2002-06-22 | 2002-06-22 | Pressure limited oil recoverer for engine oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2549182Y true CN2549182Y (en) | 2003-05-07 |
Family
ID=33733362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02267844 Expired - Fee Related CN2549182Y (en) | 2002-06-22 | 2002-06-22 | Pressure limited oil recoverer for engine oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2549182Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009132507A1 (en) * | 2008-04-30 | 2009-11-05 | 无锡开普机械有限公司 | Mobile oil pressure limiting valve for engine |
| CN103133080A (en) * | 2013-02-16 | 2013-06-05 | 洛阳拖拉机研究所有限公司 | Relief valve of engine oil pump and lubricating system thereof |
| CN103644039A (en) * | 2013-11-07 | 2014-03-19 | 山西新天地发动机制造有限公司 | Engine oil pressure-limiting and pressure-relief oil return system |
| CN114483248A (en) * | 2022-02-11 | 2022-05-13 | 广西玉柴机器股份有限公司 | Cylinder cover capable of controlling flow of engine oil pump |
-
2002
- 2002-06-22 CN CN 02267844 patent/CN2549182Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009132507A1 (en) * | 2008-04-30 | 2009-11-05 | 无锡开普机械有限公司 | Mobile oil pressure limiting valve for engine |
| CN103133080A (en) * | 2013-02-16 | 2013-06-05 | 洛阳拖拉机研究所有限公司 | Relief valve of engine oil pump and lubricating system thereof |
| CN103644039A (en) * | 2013-11-07 | 2014-03-19 | 山西新天地发动机制造有限公司 | Engine oil pressure-limiting and pressure-relief oil return system |
| CN103644039B (en) * | 2013-11-07 | 2016-11-09 | 山西新天地发动机制造有限公司 | Engine motor oil pressure limiting pressure release oil return system |
| CN114483248A (en) * | 2022-02-11 | 2022-05-13 | 广西玉柴机器股份有限公司 | Cylinder cover capable of controlling flow of engine oil pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201661332U (en) | Oil cooler | |
| CN113417712A (en) | Lubricating system of engine and engine | |
| CN201671797U (en) | Automobile water-cooling air compressor | |
| CN101832252B (en) | Energy-saving automobile water-cooling air compressor | |
| CN2549182Y (en) | Pressure limited oil recoverer for engine oil | |
| CN2842014Y (en) | Engine oil pump | |
| CN214577281U (en) | Electric control oil-gas separation device | |
| CN2541608Y (en) | Engine oil cleaner and cooler assembly of engine | |
| CN100501137C (en) | Vertical type single-cylinder diesel engine | |
| CN103670580B (en) | A kind of lubricating oil system of high-power diesel engine | |
| CN201050390Y (en) | Integral diesel engine oil pump | |
| CN103644039A (en) | Engine oil pressure-limiting and pressure-relief oil return system | |
| CN2866838Y (en) | Diesel engine oil pump | |
| CN203670016U (en) | Pressure-limiting and pressure-relief oil return system for engine oil | |
| CN201326428Y (en) | Engine oil supply module | |
| CN103206280A (en) | Lubricating oil path system of multi-cylinder aerodynamic engine | |
| CN201255022Y (en) | Crankcase cap for engine | |
| CN2856644Y (en) | Machine oil decompression means of motorcycle engine | |
| CN2608692Y (en) | Lubricating mechanism for motorcycle engine | |
| CN202560341U (en) | Air power engine oil system | |
| CN202117730U (en) | Oil pump of engine | |
| CN2892419Y (en) | Chain saw chain lubricating oil supply valve | |
| CN221347049U (en) | Engine | |
| CN200955414Y (en) | Cylinder-cover oil-circuit structure of automobile engine | |
| CN217273467U (en) | Two-stage press oil pump |
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 |