CN108626417A - A kind of pressure limiting valve plunger on lubricating pump of automobile - Google Patents
A kind of pressure limiting valve plunger on lubricating pump of automobile Download PDFInfo
- Publication number
- CN108626417A CN108626417A CN201710173313.0A CN201710173313A CN108626417A CN 108626417 A CN108626417 A CN 108626417A CN 201710173313 A CN201710173313 A CN 201710173313A CN 108626417 A CN108626417 A CN 108626417A
- Authority
- CN
- China
- Prior art keywords
- pressure limiting
- limiting valve
- valve rod
- column casing
- oil
- 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.)
- Pending
Links
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/02—Pressure lubrication using lubricating pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/16—Controlling lubricant pressure or quantity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N13/00—Lubricating-pumps
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
A kind of pressure limiting valve plunger on lubricating pump of automobile, including the pressure limiting valve column casing being vertically arranged in lubricating oil pump, the upper end of pressure limiting valve column casing is connected to the main oil gallery of engine, it is equipped with fuel feed hole, oil outlet and relief hole on the circumferential surface of pressure limiting valve column casing successively from top to bottom, plug screw is equipped in the lower end of pressure limiting valve column casing, it is equipped with vertical pressure limiting valve rod in pressure limiting valve column casing, pressure limiting spring is equipped between the lower end and plug screw of pressure limiting valve rod；Filings-containing cavity room is equipped in the upper surface of the pressure limiting valve rod, filings-containing cavity room is corresponding with the oil duct junction of main oil gallery.Filings-containing cavity room is increased on the front end face of pressure limiting valve rod, both the basic function demand of pressure limiting valve rod had been met, the foreign matter for being deposited on pressure limiting valve rod front end is effectively stored again, solves the problems, such as that foreign matter leads to pressure limiting valve rod clamping stagnation, to improve the reliability and service life of pressure limiting valve.
Description
Technical field
The present invention relates to lubricating pump of automobile field, especially a kind of pressure limiting valve plungers on lubricating pump of automobile.
Background technology
Automobile engine needs to maintain at work certain engine oil pressure, but not due to the Operation Conditions of engine
Together, the demand oil mass of machine oil and oil pressure can be different.Especially in engine cold state, due to engine oil viscosity factor and high speed
Lubricating oil pump pumps out that oil level is more rich, and oil pressure of lubricating system can exceed its use demand under operating mode；In order to make engine oil pressure tie up
It holds in a certain range, usually in lubricating oil pump（Or on lubricating pipe）Pressure limiting valve system can be designed, to limit oil outlet pressure mistake
It is high.
Such as pressure limiting valve cisco unity malfunction, the engine oil pressure in engine main oil gallery may be made excessively high, influence engine
The leakproofness of lubricating system；Pressure limiting valve cannot reset in time can make the oil pressure in engine main oil gallery too low, so as to cause starting
Machine is shut down, cisco unity malfunction.
Pillar pressure limiting valve is common pressure limiting valve design form.Because engine is in the process of running, not due to operating mode
It can cause the fluctuation of main oil gallery oil pressure, pressure limiting valve that the action of Open-closure can be repeated with variation, if reaction is excessively sensitive
Impact noise is generated with shell when can make engine oil pressure fluctuation frequently and pressure limiting spool return, makes its reduced part life.
Invention content
The present invention provides a kind of pressure limiting valve plunger on lubricating pump of automobile, and solving oil duct foreign matter causes pressure limiting valve rod to be deposited
The clamping stagnation the problem of.
In order to solve the above-mentioned technical problem, the technical scheme is that：A kind of pressure limiting valve on lubricating pump of automobile
Plunger, including the pressure limiting valve column casing that is vertically arranged in lubricating oil pump, the upper end of pressure limiting valve column casing are connected to the main oil gallery of engine,
It is equipped with fuel feed hole, oil outlet and relief hole on the circumferential surface of pressure limiting valve column casing successively from top to bottom, is set in the lower end of pressure limiting valve column casing
There is plug screw, is equipped with vertical pressure limiting valve rod in pressure limiting valve column casing, pressure limiting spring is equipped between the lower end and plug screw of pressure limiting valve rod；Its
It is characterized in that：Filings-containing cavity room is equipped in the upper surface of the pressure limiting valve rod, filings-containing cavity room is corresponding with the oil duct junction of main oil gallery.
Advantageous effect：Filings-containing cavity room is increased on the front end face of pressure limiting valve rod, has both met the basic training of pressure limiting valve rod
Energy demand, and the foreign matter for being deposited on pressure limiting valve rod front end effectively is stored, solving foreign matter leads to asking for pressure limiting valve rod clamping stagnation
Topic, to improve the reliability and service life of pressure limiting valve.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention.
Fig. 2 is the structural schematic diagram of pressure limiting valve rod in the present invention.
Fig. 3 is pressure limiting valve open state figure in the present invention.
Fig. 4 is pressure limiting valve closing state figure in the present invention.
Specific implementation mode
As depicted in figs. 1 and 2, a kind of pressure limiting valve plunger on lubricating pump of automobile, including it is vertically arranged in lubricating oil pump
Interior pressure limiting valve column casing 1, the upper end of pressure limiting valve column casing 1 are connected to the main oil gallery 2 of engine, on the circumferential surface of pressure limiting valve column casing 1 from
It is equipped with fuel feed hole 101, oil outlet 102 and relief hole 103 successively under, plug screw 3, limit is equipped in the lower end of pressure limiting valve column casing 1
Vertical pressure limiting valve rod 4 is equipped in pressure valve column casing, pressure limiting valve rod 4 is to be slidably matched with pressure limiting valve column casing 1, under pressure limiting valve rod 4
Pressure limiting spring 5 is equipped between end and plug screw 3；Fuel feed hole 101 is corresponding with the annular groove 401 on pressure limiting valve rod stage casing, oil outlet
102, relief holes 103 corresponding with the tail end of pressure limiting valve rod 3 and pressure limiting spring 5 are corresponding；In the upper surface of the pressure limiting valve rod 4
Equipped with filings-containing cavity room 402, filings-containing cavity room 402 is cylinder groove, and filings-containing cavity room 302 is corresponding with the oil duct junction of main oil gallery.
Operation principle：As shown in figure 3, the open state of pressure limiting valve：1）When the oil pressure in lubricating oil pump high-voltage oil cavity is excessively high,
Machine oil is pressed by fuel feed hole in the annular groove on pressure limiting valve rod respectively, and the end face of pressure limiting valve rod is increased by hydraulic action, limit
Pressure valve column axial displacement, after displacement certain distance, oil outlet is connected to by the annular groove on pressure limiting valve rod with fuel feed hole, high pressure oil
Oil pressure in chamber 6 is flowed into through fuel feed hole, annular groove, oil outlet in oil sump, is pumped out high pressure oil and is leaked into oil sump, plays
Pressure limiting work(；When pressure limiting spring-compressed, the air between pressure limiting valve rod and plug screw is discharged relief hole；2）Pressure limiting valve column axial displacement
While, in the upper end of the fluid indentation pressure limiting valve column casing in engine main oil gallery, because fluid can not flow in pressure limiting valve column casing
It is dynamic, therefore be gradually deposited in filings-containing cavity room after impurity entrance；Only fraction of fluid passes through pressure limiting valve rod and pressure limiting valve column casing
Between minim gap leakage, but do not influence the overall performance of pressure limiting valve.As shown in figure 4, the closed state of pressure limiting valve：Work as high pressure
When oil pressure in oil pocket reduces, pressure limiting valve rod is by pressure limiting spring return function, and pressure limiting valve rod is by the fluid in pressure limiting valve column casing upper end
It pushes back in the main oil gallery of engine.
After the present invention is implemented, the functional requirement of pressure limiting valve rod is not only met, also efficiently avoids taking with high pressure oil
The impurity of band enters on the sliding surface of pressure limiting valve rod, avoids engine oil pump assembly pressure limiting valve disabler, increases engine oil pump assembly
Reliability.
Do not elaborate place in this specification, the common sense being known in the art.
Claims (1)
1. a kind of pressure limiting valve plunger on lubricating pump of automobile, including the pressure limiting valve column casing that is vertically arranged in lubricating oil pump, limit
The upper end of pressure valve column casing is connected to the main oil gallery of engine, on the circumferential surface of pressure limiting valve column casing from top to bottom successively be equipped with fuel feed hole,
Oil outlet and relief hole are equipped with plug screw in the lower end of pressure limiting valve column casing, vertical pressure limiting valve rod, pressure limiting are equipped in pressure limiting valve column casing
Pressure limiting spring is equipped between the lower end and plug screw of valve rod；It is characterized in that：Filings-containing cavity is equipped in the upper surface of the pressure limiting valve rod
Room, filings-containing cavity room are corresponding with the oil duct junction of main oil gallery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710173313.0A CN108626417A (en) | 2017-03-22 | 2017-03-22 | A kind of pressure limiting valve plunger on lubricating pump of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710173313.0A CN108626417A (en) | 2017-03-22 | 2017-03-22 | A kind of pressure limiting valve plunger on lubricating pump of automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108626417A true CN108626417A (en) | 2018-10-09 |
Family
ID=63707238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710173313.0A Pending CN108626417A (en) | 2017-03-22 | 2017-03-22 | A kind of pressure limiting valve plunger on lubricating pump of automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108626417A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882729A (en) * | 2019-04-08 | 2019-06-14 | 湖南机油泵股份有限公司 | A kind of gear type oil pump for the lubricating place being conveniently adjusted idle pulley neck bush |
-
2017
- 2017-03-22 CN CN201710173313.0A patent/CN108626417A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882729A (en) * | 2019-04-08 | 2019-06-14 | 湖南机油泵股份有限公司 | A kind of gear type oil pump for the lubricating place being conveniently adjusted idle pulley neck bush |
| CN109882729B (en) * | 2019-04-08 | 2023-09-19 | 湖南机油泵股份有限公司 | Gear type oil pump convenient for adjusting lubrication position of idler shaft bushing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181009 |
|
| WD01 | Invention patent application deemed withdrawn after publication |