CN203559952U - Pressure adjusting assembly - Google Patents
Pressure adjusting assembly Download PDFInfo
- Publication number
- CN203559952U CN203559952U CN201320644252.9U CN201320644252U CN203559952U CN 203559952 U CN203559952 U CN 203559952U CN 201320644252 U CN201320644252 U CN 201320644252U CN 203559952 U CN203559952 U CN 203559952U
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- Prior art keywords
- spring
- pressure regulation
- screw rod
- adjusting screw
- oil
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- Withdrawn - After Issue
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Abstract
The utility model provides a pressure adjusting assembly which can solve the problem that existing pressure adjusting assemblies can not stabilize oil pressures in main oil passages effectively all the time. The pressure adjusting assembly comprises an adjusting screw rod and a spring, wherein the adjusting screw rod and the spring are installed in a pressure adjusting assembly zone at the tail end of a main oil passage; the adjusting screw rod and a slide inner wall of the pressure adjusting assembly zone are in threaded connection and locked by a locking nut; a positioning shaft of the adjusting screw rod is sleeved with the spring; the bottom end of the spring is fixed with the top surface of the adjusting screw rod; the tail end of the pressure adjusting assembly zone is sealed through an oil sealing nut; and an oil drainage port is formed in an oil passage wall, which is close to the main oil passage, of the pressure adjusting assembly zone. The pressure adjusting assembly is characterized in that an adjusting plunger is further installed in the pressure adjusting assembly zone; a constraint groove is formed in the bottom end of the adjusting plunger; the top of the spring is embedded in the constraint groove and the top end of the spring is fixed with the groove bottom surface of the constraint groove; the top surface area of the adjusting plunger is larger than the sectional area of the main oil passage; the height of the adjusting plunger is larger than that of the oil drainage port; and the adjusting plunger is in clearance fit with the oil passage wall of the pressure adjusting assembly zone.
Description
Technical field
The utility model relates to engine components field, especially relates to engine lubrication system field of components, is specially a kind of pressure regulation assembly.
Background technique
Conventionally motor needs to guarantee stable engine oil pressure in the running, otherwise will affect reliability and the engine performance of whole engine lubrication system, therefore generally by being set, pressure regulation assembly regulates the engine oil pressure in main oil gallery in actual applications, existing pressure regulation assembly is arranged in the pressure regulation element segment with main oil gallery end, see Fig. 1, it comprises adjusting screw rod 3, spring 2 and steel ball 1, on the oil duct wall of the pressure regulation element segment near main oil gallery one side, be provided with drain tap, adjusting screw rod 3 is installed in pressure regulation element segment, it is connected with oil duct inner thread and passes through locking nut 4 locking and positioning, the end of pressure regulation element segment is by 5 sealings of oil sealing nut, spring 2 is set on the positioning shaft of adjusting screw rod 3 and the bottom of spring 2 is fixedly connected with the end face of adjusting screw rod 3, the top of spring 2 is free end and can embraces steel ball 1, thereby this adjusting part is by regulating adjusting screw rod 3 to come the decrement of control spring 2 to make the engine oil pressure in main oil gallery reach default critical pressure value, motor is in operation process, engine oil pressure in main oil gallery in normal range (NR) or when pressure is on the low side steel ball 1 be subject to the pretightening force effect of spring 2 to hold out against the sealing that main oil gallery mouth guarantees main oil gallery, engine oil pressure in main oil gallery is in critical value or pressure when higher, steel ball 1, spring 2 is declined by the effect compression of main oil gallery inner engine oil pressure, main oil gallery mouth is connected with drain tap, reach the effect of draining decompression, but in actual applications, this valve module of voltage regulation can not guarantee that engine oil pressure remains steady state, on the one hand because spring one end is fixed on adjusting screw rod, the other end and is directly embraced steel ball, the degrees of freedom of part is large, thereby cause dredge oil amount inhomogeneous, and spring easily produces irregular deformation and causes decrement inhomogeneous, can not play the effect of effectively stablizing oil pressure, when motor just starts, oil temperature is low on the other hand, viscosity is high, and existing its steel ball of pressure regulation assembly and main oil gallery are line contact sealing, when, viscosity low at oil temperature is large, the flow velocity of machine oil is low, thereby causes engine oil pressure value higher than theoretical value, and the adjusting of engine oil pressure is unstable, difficulty is large.In Fig. 1,4 is locking nut, for locking adjusting screw rod; 5 is oil sealing nut, for sealing pressure regulation element segment end, preventing lubricating oil leakage.
Summary of the invention
The utility model provides a kind of pressure regulation assembly, and it can solve existing pressure regulation assembly can not effectively stablize main oil gallery inner engine oil stress problems all the time.
Its technological scheme is such, it comprises adjusting screw rod, spring, described adjusting screw rod, spring is all installed in the pressure regulation element segment of main oil gallery end, described adjusting screw rod is connected with the slideway inner thread of described pressure regulation element segment and passes through locking nut locking and positioning, described spring housing is loaded on the positioning shaft of described adjusting screw rod and the bottom of described spring and the end face of adjusting screw rod are fixedly connected with, the end of pressure regulation element segment seals by oil sealing nut, on the oil duct wall of pressure regulation element segment near main oil gallery, have drain tap, it is characterized in that: described adjusting is pressed in element segment pilot plunger is also installed, the bottom of described pilot plunger has restraint slot, the top of described spring is flush-mounted in described restraint slot and the top of described spring and the groove bottom of described restraint slot are fixed, the top surface area of described pilot plunger is greater than described main oil gallery sectional area, described pilot plunger height is greater than described drain tap height, the oil duct wall Spielpassung of described pilot plunger and described pressure regulation element segment.
It is further characterized in that:
Described pilot plunger is high-precision sealing surface near the end face of described main oil gallery one side;
The high-precision sealing surface of described pilot plunger and the mating face of outer circumferential face are inclined-plane;
The periphery of described pilot plunger has circumferential circular groove;
On the cell wall of described restraint slot, near a side of restraint slot bottom surface along circumferentially evenly having oil residues drain boles.
Compare with existing pressure regulation assembly, the beneficial effects of the utility model are: it replaces existing steel ball with pilot plunger, because pilot plunger bottom has restraint slot, and the top of spring is flush-mounted in this restraint slot and the top of spring and the groove bottom of restraint slot are fixed, thereby greatly limited the degrees of freedom of pilot plunger and effectively avoided the irregular deformation of spring, guaranteed dredge oil amount evenly, pilot plunger is high-precision sealing surface near the end face of described main oil gallery one side, when in main oil gallery, oil pressure is normal or on the low side, the high-precision sealing surface of plunger head fits tightly at main oil gallery mouth under spring pressure effect, forms the end face horizontal seal vertical with oil pressure direction, and when in main oil gallery, oil pressure surpasses limit value, plunger, spring pressurized move down, machine oil is subject to the inclined-plane leading role of plunger to flow directly to drain tap, and when main oil gallery inner engine oil pressure is very large, dredge oil amount also increases thereupon, now the circumference in the circular groove district of periphery and the oil duct inwall of pressure regulation element segment will form annular oil cavity, can make that machine oil fluid is in time evenly equal flows back to oil sump through rushing down hydraulic fluid port, in addition, because pilot plunger and oil duct inwall are Spielpassung, machine oil leakiness is in region between spring and adjusting screw rod, in this region, being full of machine oil can move down and produce resistance pilot plunger pressurized is changed pilot plunger, cause oil pressure shakiness or pressure regulation value untrue, therefore on the cell wall of pilot plunger restraint slot, near a side of restraint slot bottom surface along circumferentially evenly having oil residues drain boles, when machine oil flows into behind the region between spring and adjusting screw rod, machine oil fluid can drain into by the drain boles of circumference uniform distribution drain tap place the final oil sump that flows under pressure, thereby guarantee that machine oil can not continue to be full of completely whole region, pressure balance in assurance oil duct and the normal unlatching of pressure regulator valve.
Accompanying drawing explanation
Fig. 1 is existing pressure regulation modular construction schematic diagram;
Fig. 2 is the utility model pressure regulation modular construction schematic diagram;
Fig. 3 is the structure for amplifying schematic diagram of pilot plunger in the utility model pressure regulation assembly;
Fig. 4 is that the A-A of Fig. 3 is to structural representation.
Embodiment
See Fig. 2, Fig. 3 and Fig. 4, the utility model pressure regulation assembly comprises adjusting screw rod 3, spring 2 and pilot plunger 6, adjusting screw rod 3, spring 2 is all installed in the pressure regulation element segment 8 of main oil gallery 7 ends, adjusting screw rod 3 is connected with the slideway inner thread of pressure regulation element segment 8 and passes through locking nut 4 locking and positioning, spring 2 is set on the positioning shaft 17 of adjusting screw rod 3 and the bottom of spring 2 and the end face of adjusting screw rod 10 are fixedly connected with, the end of pressure regulation element segment 8 is by 5 sealings of oil sealing nut, on the oil duct wall of pressure regulation element segment 8 near main oil gallery, have drain tap 9, the bottom of pilot plunger 6 has restraint slot 11, the top of spring 2 is flush-mounted in restraint slot 11 and the top of spring 2 is fixed with the groove bottom of restraint slot 11 17, the top surface area of pilot plunger 6 is greater than main oil gallery 7 sectional areas, pilot plunger 6 is highly greater than drain tap 9 height, the oil duct wall Spielpassung of pilot plunger 6 and pressure regulation element segment 8.Pilot plunger 6 is high-precision sealing surface near the end face 12 of main oil gallery 7 one sides; The high-precision sealing surface 10 of pilot plunger 6 and the 14Wei inclined-plane, mating face of outer circumferential face 13; The periphery of pilot plunger 6 has circumferential circular groove 15; On the cell wall 18 of restraint slot 11, near a side of restraint slot bottom surface 17 along circumferentially evenly having oil residues drain boles 16.
Claims (5)
1. a pressure regulation assembly, it comprises adjusting screw rod, spring, described adjusting screw rod, spring is all installed in the pressure regulation element segment of main oil gallery end, described adjusting screw rod is connected with the slideway inner thread of described pressure regulation element segment and passes through locking nut locking and positioning, described spring housing is loaded on the positioning shaft of described adjusting screw rod and the bottom of described spring and the end face of adjusting screw rod are fixedly connected with, the end of pressure regulation element segment seals by oil sealing nut, on the oil duct wall of pressure regulation element segment near main oil gallery, have drain tap, it is characterized in that: described adjusting is pressed in element segment pilot plunger is also installed, the bottom of described pilot plunger has restraint slot, the top of described spring is flush-mounted in described restraint slot and the top of described spring and the groove bottom of described restraint slot are fixed, the top surface area of described pilot plunger is greater than described main oil gallery sectional area, described pilot plunger height is greater than described drain tap height, the oil duct wall Spielpassung of described pilot plunger and described pressure regulation element segment.
2. a kind of pressure regulation assembly according to claim 1, is characterized in that: described pilot plunger is high-precision sealing surface near the end face of described main oil gallery one side.
3. a kind of pressure regulation assembly according to claim 2, is characterized in that: the high-precision sealing surface of described pilot plunger and the mating face of outer circumferential face are inclined-plane.
4. according to arbitrary described a kind of pressure regulation assembly in claim 1,2 or 3, it is characterized in that: the periphery of described pilot plunger has circumferential circular groove.
5. a kind of pressure regulation assembly according to claim 4, is characterized in that: on the cell wall of described restraint slot, near a side of restraint slot bottom surface along circumferentially evenly having oil residues drain boles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320644252.9U CN203559952U (en) | 2013-10-18 | 2013-10-18 | Pressure adjusting assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320644252.9U CN203559952U (en) | 2013-10-18 | 2013-10-18 | Pressure adjusting assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203559952U true CN203559952U (en) | 2014-04-23 |
Family
ID=50509679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320644252.9U Withdrawn - After Issue CN203559952U (en) | 2013-10-18 | 2013-10-18 | Pressure adjusting assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203559952U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527283A (en) * | 2013-10-18 | 2014-01-22 | 无锡动力工程股份有限公司 | Pressure adjusting assembly |
| CN108036077A (en) * | 2017-11-28 | 2018-05-15 | 安徽荣达阀门有限公司 | A kind of pressure regulating cone valve pressure regulation valve group |
-
2013
- 2013-10-18 CN CN201320644252.9U patent/CN203559952U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527283A (en) * | 2013-10-18 | 2014-01-22 | 无锡动力工程股份有限公司 | Pressure adjusting assembly |
| CN103527283B (en) * | 2013-10-18 | 2016-05-18 | 无锡动力工程股份有限公司 | Pressure regulation assembly |
| CN108036077A (en) * | 2017-11-28 | 2018-05-15 | 安徽荣达阀门有限公司 | A kind of pressure regulating cone valve pressure regulation valve group |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140423 Effective date of abandoning: 20160518 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |