CN106523884B - Anti- clamping stagnation high-low pressure pressure limiting valve for dual protection and lubricating oil pump - Google Patents
Anti- clamping stagnation high-low pressure pressure limiting valve for dual protection and lubricating oil pump Download PDFInfo
- Publication number
- CN106523884B CN106523884B CN201611183052.2A CN201611183052A CN106523884B CN 106523884 B CN106523884 B CN 106523884B CN 201611183052 A CN201611183052 A CN 201611183052A CN 106523884 B CN106523884 B CN 106523884B
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- valve
- mouths
- pressure
- steel ball
- valve element
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Classifications
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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
- F16N23/00—Special adaptations of check valves
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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
- F16N—LUBRICATING
- F16N13/00—Lubricating-pumps
-
- 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
- F16N2270/00—Controlling
- F16N2270/60—Pressure
Abstract
The uuper valve chamber and lower valve chamber interconnected is provided with the invention provides a kind of anti-clamping stagnation high-low pressure pressure limiting valve for dual protection, including valve body, in the valve body；The lower end of the lower valve chamber is provided with the P mouths for oil-feed, is sequentially arranged with the second steel ball, second spring and the second bowl-type plug in the lower valve chamber from bottom to up, and the second steel ball is coordinated by the active force of second spring with the sealing of P mouths, and the middle part of the second bowl-type plug is provided with through hole；The cavity wall of the uuper valve chamber is provided with the A mouths for draining, and valve element, steel ball, spring and bowl-type plug are sequentially arranged with from bottom to up in the uuper valve chamber；The valve element is the cylindrical structure with lower surface, and the side wall of valve element is provided with the through hole that can be communicated with A mouths, and C mouths are provided among the lower surface of valve element, and steel ball is arranged in valve element and coordinated by the active force and the sealing of C mouths of spring.The present invention additionally provides a kind of lubricating oil pump for being provided with above-mentioned pressure limiting valve simultaneously.
Description
Technical field
The present invention relates to engine lubrication system, more particularly to a kind of pressure limiting valve and the lubricating oil pump for installing limited valve.
Background technology
Pressure limiting valve main function in engine lubrication system is：When oil pressure exceedes certain pressure, unnecessary machine oil leads to
Pressure limiting valve is crossed to leak so as to reach the purpose of protection system.The pressure limiting valve structure of lubricating oil pump is generally as shown in Figure 1 in the prior art：
It is made up of valve body 1, valve element 2, spring 4, bowl-type plug 5.Wherein valve body 1 and valve element 2 are that small―gap suture coordinates, and hydraulic oil is made by P mouths
For valve element 2, with pressure increase to a certain extent, pressure oil promotes valve element 2 to move upwards, P mouths is communicated with A mouths, allows height
Force feed leaks to protect system.But because the factors such as the impurity in machine oil influence in practical application, the fortune between valve element 2 and valve body 1
It is visibly moved easily occur clamping stagnation, when valve element 2 upward motion process occur clamping stagnation when, hydraulic oil can not pressure release, cause system oil pressure inclined
Height, and then it is easily damaged systematic part.And when during moving downward closing pressure release clamping stagnation is occurring for valve element 2, pressure oil
It can continue to reveal, so as to cause system oil pressure relatively low, serious meeting causes engine Bearing score.
The content of the invention
The invention aims to solve the above-mentioned problems of the prior art, there is provided a kind of anti-clamping stagnation high-low pressure is dual
Protect pressure limiting valve.It is a further object to provide a kind of lubricating oil pump for being provided with this pressure limiting valve.
In order to solve the above-mentioned technical problem, the present invention is on the technical scheme of pressure limiting valve：A kind of anti-clamping stagnation high-low pressure is double
Pressure limiting valve, including valve body are protected again, and the uuper valve chamber and lower valve chamber interconnected is provided with the valve body；The lower end of the lower valve chamber
Provided with the P mouths for oil-feed, the second steel ball, second spring and the second bowl-type plug are sequentially arranged with the lower valve chamber from bottom to up,
Second steel ball is coordinated by the active force of second spring with the sealing of P mouths, and the middle part of the second bowl-type plug is provided with through hole；The uuper valve chamber
Cavity wall be provided with A mouths for draining, be sequentially arranged with valve element, steel ball, spring and bowl-type plug from bottom to up in the uuper valve chamber；Institute
It is the cylindrical structure with lower surface to state valve element, and the side wall of valve element is provided with the through hole that can be communicated with A mouths, among the lower surface of valve element
Provided with C mouths, steel ball is arranged in valve element and coordinated by the active force and the sealing of C mouths of spring.
The operation principle of above-mentioned technical proposal is：Under normal circumstances, increase with the pressure of P mouths, pressure oil promotes second
Steel ball overcomes the elastic force of second spring to move upwards, and pressure oil just enters lower valve chamber, so promote valve element and steel ball jointly to
Upper motion, P mouths are made to be communicated with A mouths, hydraulic oil is leaked, it is ensured that system pressure is not higher；When system oil pressure reduces, valve element
Moved from the top down jointly under the elastic force effect of spring with steel ball, close A mouths, pressure oil stops leaking, it is ensured that system pressure
Power demand.If the phenomenon of valve element and valve body clamping stagnation occurs in upward motion process in valve element, steel ball can under pressure oil effect
With individually motion upwards, communicate P mouths, C mouths, A mouth threes, hydraulic oil is leaked, and reaches the too high mesh of protection system pressure
's；When system pressure declines, when valve element occurs the phenomenon of valve element and valve body clamping stagnation in motion process from top to down, pressure oil is still
Can be by A mouth pressure releases, when system pressure is declined to a certain extent, the second steel ball closes P mouths under the elastic force effect of second spring,
Prevent pressure oil from leaking, reach the requirement of protection system minimum pressure, protect engine health well.
Preferably, the unlatching drainage pressure of valve element is P2, and the unlatching drainage pressure of the second steel ball is P1, P2 ＞ P1.Using
Such design, it is easy to pressure oil to push the second steel ball open and swimmingly enters lower valve chamber.
Preferably, the unlatching drainage pressure of steel ball is P3, P3 ＞ P2.Using such design, it is ensured that in pressure limiting
In the case that valve is working properly, steel ball will not open draining, and only when catching phenomenon occur in valve element and valve body, oil pressure continues to increase
Greatly, steel ball can just open draining.
The present invention is on the technical scheme of lubricating oil pump：A kind of lubricating oil pump, including the pump housing, it is provided with the pump housing above-mentioned
Anti- clamping stagnation high-low pressure pressure limiting valve for dual protection described in technical scheme.
Brief description of the drawings
Fig. 1 is the structural representation of pressure limiting valve of the prior art；
Fig. 2 is the pressure limiting valve overall structure diagram in the embodiment of the present invention；
Reference is：
1 --- valve body 2 --- valve element 3 --- steel ball
4 --- spring 5 --- bowl-type plug 6 --- second steel balls
7 --- second spring 8 --- second bowl-type plug.
Embodiment
For the ease of the understanding of those skilled in the art, the present invention is made further with reference to embodiment and accompanying drawing
Bright, the content that embodiment refers to not is limitation of the invention.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise " are based on orientation shown in the drawings or position relationship, are for only for ease of
Description is of the invention to be described with simplified, rather than the device or element of instruction or hint meaning must be with specific orientation, Yi Te
Fixed azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " ", " second " be only used for describe purpose, and it is not intended that instruction or imply relative importance or
The implicit quantity for indicating indicated technical characteristic.In the description of the invention, " multiple " are meant that two or more,
Unless otherwise specifically defined.In the description of the invention, it is necessary to which explanation, unless otherwise prescribed and is limited, term
" installation ", " connected ", " connection " should be interpreted broadly, for example, it may be mechanical connection or electrical connection or two elements
Internal connection, can be joined directly together, can also be indirectly connected by intermediary, for one of ordinary skill in the art
For, the concrete meaning of the term can be understood as the case may be.
Embodiment 1
A kind of anti-clamping stagnation high-low pressure pressure limiting valve for dual protection as shown in Figure 2, including valve body 1, the valve body 1 is interior to be provided with mutually
The uuper valve chamber and lower valve chamber being connected；The lower end of the lower valve chamber is provided with the P mouths for oil-feed, in the lower valve chamber from bottom to up
It is sequentially arranged with the second steel ball 6, the bowl-type plug 8 of second spring 7 and second, the active force and P mouths that the second steel ball 6 passes through second spring 7
Sealing coordinates, and the middle part of the second bowl-type plug 8 is provided with through hole；The cavity wall of the uuper valve chamber is provided with the A mouths for draining, the upper valve
Intracavitary is sequentially arranged with valve element 2, steel ball 3, spring 4 and bowl-type plug 5 from bottom to up；The valve element 2 is the cylinder knot with lower surface
Structure, the side wall of valve element 2 are provided with the through hole that can be communicated with A mouths, are provided with C mouths among the lower surface of valve element 2, steel ball 3 is arranged on valve element 2
Interior and by spring 4 active force coordinates with the sealing of C mouths.
Wherein valve body 1 and valve element 2 are that small―gap suture coordinates, and the bowl-type plug 8 of bowl-type plug 5 and second is interference fit with valve body 1.
It is P1 to set the second steel ball 6 to open drainage pressure（P1 is system minimum safe pressure）, it is P2 that valve element 2, which opens drainage pressure, steel
It is P3, P3 ＞ P2 ＞ P1 that ball 3, which opens drainage pressure,.Under normal circumstances, when increasing to P1 with P mouth pressure, pressure oil promotes the
Two steel balls 6 move upwards, and pressure oil flows into lower valve chamber, when pressure reaches P2, pressure oil promote valve element 2 and steel ball 3 jointly to
Upper motion makes P mouths be communicated with A mouths, and hydraulic oil leaks, it is ensured that system pressure is not higher.When system oil pressure, which reduces, is less than P2, valve
Core 2 moves from the top down, closes A mouths, and pressure oil stops leaking, it is ensured that system pressure demand.As described above, when valve element 2 to
Occurs catching phenomenon in upper motion process, when system pressure reaches P3, pressure oil pushes steel ball 3 open, makes hydraulic oil outside C mouth-A mouths
Let out, reach the too high purpose of protection system pressure；When system pressure declines, there is clamping stagnation in motion process from top to down in valve element 2
During phenomenon, pressure oil still can be by A mouth pressure releases, and when system pressure is declined to a certain extent, the second steel ball 6 is in second spring 7
Elastic force effect it is lower close P mouths, prevent that pressure oil from leaking, reach the requirement of protection system minimum pressure, protection well is started
Machine safety.
Embodiment 2
A kind of lubricating oil pump, including the pump housing, the anti-clamping stagnation high-low pressure dual guarantor described in embodiment 1 is installed on the pump housing
Protect pressure limiting valve.The valve body of pressure limiting valve can be embedded into the pump housing by those skilled in the art as needed, can also be by pressure limiting valve
Valve body and the pump housing be integrally formed.
Above-described embodiment is the preferable implementation of the present invention, and in addition, the present invention can be realized with other manner,
Any obviously replaced on the premise of not departing from the technical program design within protection scope of the present invention.
In order to allow those of ordinary skill in the art more easily to understand improvements of the present invention relative to prior art, this
Some accompanying drawings of invention and description have been simplified, and for the sake of clarity, present specification is omitted some other members
Element, those of ordinary skill in the art should be aware that these elements omitted also may make up present disclosure.
Claims (4)
1. a kind of anti-clamping stagnation high-low pressure pressure limiting valve for dual protection, including valve body（1）, it is characterised in that：The valve body（1）Inside it is provided with
The uuper valve chamber and lower valve chamber interconnected；The lower end of the lower valve chamber is provided with the P mouths for oil-feed, in the lower valve chamber from it is lower to
On be sequentially arranged with the second steel ball（6）, second spring（7）With the second bowl-type plug（8）, the second steel ball（6）Pass through second spring（7）'s
Active force coordinates with the sealing of P mouths, the second bowl-type plug（8）Middle part be provided with through hole；The cavity wall of the uuper valve chamber, which is provided with, is used for draining
A mouths, be sequentially arranged with valve element from bottom to up in the uuper valve chamber（2）, steel ball（3）, spring（4）With bowl-type plug（5）；The valve element
（2）For the cylindrical structure with lower surface, valve element（2）Side wall be provided with the through hole that can be communicated with A mouths, valve element（2）Lower surface
Centre is provided with C mouths, steel ball（3）Installed in valve element（2）It is interior and pass through spring（4）The sealing of active force and C mouths coordinate.
2. anti-clamping stagnation high-low pressure pressure limiting valve for dual protection according to claim 1, it is characterised in that：Valve element（2）Unlatching
Drainage pressure is P2, the second steel ball（6）Unlatching drainage pressure be P1, P2 ＞ P1.
3. anti-clamping stagnation high-low pressure pressure limiting valve for dual protection according to claim 2, it is characterised in that：Steel ball（3）Unlatching
Drainage pressure is P3, P3 ＞ P2.
4. a kind of lubricating oil pump, including the pump housing, it is characterised in that：Installation is just like any one in claims 1 to 3 on the pump housing
Described anti-clamping stagnation high-low pressure pressure limiting valve for dual protection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611183052.2A CN106523884B (en) | 2016-12-20 | 2016-12-20 | Anti- clamping stagnation high-low pressure pressure limiting valve for dual protection and lubricating oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611183052.2A CN106523884B (en) | 2016-12-20 | 2016-12-20 | Anti- clamping stagnation high-low pressure pressure limiting valve for dual protection and lubricating oil pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106523884A CN106523884A (en) | 2017-03-22 |
| CN106523884B true CN106523884B (en) | 2018-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611183052.2A Active CN106523884B (en) | 2016-12-20 | 2016-12-20 | Anti- clamping stagnation high-low pressure pressure limiting valve for dual protection and lubricating oil pump |
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| Country | Link |
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| CN (1) | CN106523884B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355665B (en) * | 2017-09-09 | 2022-08-09 | 湖南机油泵股份有限公司 | Combination valve for oil pump |
| CN108005746B (en) * | 2017-12-29 | 2024-04-16 | 潍柴动力股份有限公司 | Engine main oil duct pressure limiting valve and engine |
| CN108868682B (en) * | 2018-07-12 | 2024-04-12 | 东营市昌瑞石油机械配件有限责任公司 | Special polish rod sealer |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2403511A1 (en) * | 1977-09-15 | 1979-04-13 | Craf | decompression valve for lubrication circuit - has ball with biased sleeve maintaining pressure in circuit when lubrication pump is not operating |
| DE19614446C1 (en) * | 1996-04-12 | 1998-01-29 | Umeta Hermann Ulrichskoetter M | Grease gun check valve |
| CN101720400A (en) * | 2007-05-23 | 2010-06-02 | 安森有限公司 | valves |
| CN201747423U (en) * | 2010-08-16 | 2011-02-16 | 浙江平柴泵业有限公司 | Oil pump with pressure limiting valve for dual protection |
| CN102597440A (en) * | 2009-12-07 | 2012-07-18 | 株式会社Tbk | Engine lubricating oil supply device |
| CN206280715U (en) * | 2016-12-20 | 2017-06-27 | 湖南机油泵股份有限公司 | Anti- clamping stagnation high-low pressure pressure limiting valve for dual protection and lubricating oil pump |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9611980B2 (en) * | 2014-10-01 | 2017-04-04 | Curtis Roys | Check valve |
-
2016
- 2016-12-20 CN CN201611183052.2A patent/CN106523884B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2403511A1 (en) * | 1977-09-15 | 1979-04-13 | Craf | decompression valve for lubrication circuit - has ball with biased sleeve maintaining pressure in circuit when lubrication pump is not operating |
| DE19614446C1 (en) * | 1996-04-12 | 1998-01-29 | Umeta Hermann Ulrichskoetter M | Grease gun check valve |
| CN101720400A (en) * | 2007-05-23 | 2010-06-02 | 安森有限公司 | valves |
| CN102597440A (en) * | 2009-12-07 | 2012-07-18 | 株式会社Tbk | Engine lubricating oil supply device |
| CN201747423U (en) * | 2010-08-16 | 2011-02-16 | 浙江平柴泵业有限公司 | Oil pump with pressure limiting valve for dual protection |
| CN206280715U (en) * | 2016-12-20 | 2017-06-27 | 湖南机油泵股份有限公司 | Anti- clamping stagnation high-low pressure pressure limiting valve for dual protection and lubricating oil pump |
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| Publication number | Publication date |
|---|---|
| CN106523884A (en) | 2017-03-22 |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Anti jamming high and low pressure double protection pressure limiting valve and oil pump Effective date of registration: 20211224 Granted publication date: 20180209 Pledgee: Bank of Beijing Limited by Share Ltd. Changsha branch Pledgor: Hunan Oil Pump Co.,Ltd. Registration number: Y2021430000097 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230105 Granted publication date: 20180209 Pledgee: Bank of Beijing Limited by Share Ltd. Changsha branch Pledgor: Hunan Oil Pump Co.,Ltd. Registration number: Y2021430000097 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Anti-stick high and low pressure dual protection pressure limiting valve and oil pump Effective date of registration: 20230130 Granted publication date: 20180209 Pledgee: Bank of Beijing Limited by Share Ltd. Changsha branch Pledgor: Hunan Oil Pump Co.,Ltd. Registration number: Y2023430000008 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |