CN105317492B - For driving double oil circuit hydraulic lash adjusters of valve rocker change working - Google Patents
For driving double oil circuit hydraulic lash adjusters of valve rocker change working Download PDFInfo
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- CN105317492B CN105317492B CN201510840799.XA CN201510840799A CN105317492B CN 105317492 B CN105317492 B CN 105317492B CN 201510840799 A CN201510840799 A CN 201510840799A CN 105317492 B CN105317492 B CN 105317492B
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Abstract
For driving double oil circuit hydraulic lash adjusters of valve rocker change working, including shell, bulb plunger and check valve mechanism, bulb plunger and check valve mechanism are assemblied in shell, bulb plunger top is set to bulb, has oil outlet at the top of bulb, shell is provided with fuel feed hole and oil-filled hole, gap adjustment plunger is provided between bulb plunger and check valve mechanism, bulb plunger is provided with fuel feed hole, and gap adjustment plunger is provided with oil-filled hole, and two kinds of fuel feed holes are connected with oil-filled hole by the gap of mechanism.Mechanism of the present invention is simple and reliable, assemble compact, processing is also very easy, while plays the gap adjustment of cam and rocking arm and to the machine oil of rocking arm offer different pressures to change the two kinds of effects of its working condition, has saved the space in cylinder cap, bulb plunger is made up of one piece of direct punching press of iron plate, inside is hollow chamber, and weight is slim and graceful, is provided with multiple fuel feed holes, relative to the solid plunger oil-feed efficiency high of only two oilholes, oil pressure is swift in response when switching.
Description
Technical field
The present invention relates to technical field of engines, is more particularly to used for the double oil circuit hydraulic pressure for driving valve rocker change working
Clearance adjuster.
Background technology
In modern car engine, the scavenging period of engine is completed by valve, and valve is typically by camshaft
Promote.If according to the location of camshaft, it can substantially be divided into bottom and put camshaft and the class of overhead camshaft two.But,
No matter which structure type the engine is, it is very clear and definite to have a bit, that is, ensures the power output of engine whole
It is interior during working life to keep stable, mechanical valve actuation especially in system, thermal expansion and valve mechanism parts
Abrasion, can all have adverse effect on to valve clearance.And hydraulic lash adjuster is exactly to be set to meet the requirement of the above
Family planning production, it is that the translating rotation of camshaft is communicated into the device on valve top to move back and forth, and can be eliminated between valve
Gap, and then the reduction of valve mechanism noise is ensure that, mitigate the damage of engine, accurately ensure that engine valve distribution just
When.
Existing Normal hydraulic clearance adjuster is simply using single oil circuit oil-feed to single oil pocket, in valve rocker by cam
The effect that impact is reduced in gap between valve and cam is eliminated when driving is swung.For providing the fluid of certain pressure to rocking arm
It is solid hole structure that drive mechanism, which does the hydraulic lash adjuster of change working its epimere bulb plunger, because only opening two oil-feeds
Hole, oil-feed efficiency is low, may not reach desired operating pressure, and weight is big, inertia increase, and hypomere is used to adjust gap
Plunger operating efficiency has an impact.
The content of the invention
The invention solves problem of the prior art, there is provided for driving between double oil circuit hydraulic pressure of valve rocker change working
Gap adjuster, mechanism is simple and reliable, simple processing, and assembling is compact, saves space, in light weight, is provided with multiple fuel feed holes, oil pressure is cut
It is swift in response when changing.
To reach above-mentioned purpose, the technical solution adopted by the present invention is as follows：
For driving double oil circuit hydraulic lash adjusters of valve rocker change working, including shell, bulb plunger and only
Valve system is returned, bulb plunger and check valve mechanism are assemblied in shell, and bulb plunger top is set to bulb, has at the top of bulb fuel-displaced
Hole, the shell are provided with fuel feed hole and oil-filled hole, gap adjustment plunger are provided between the bulb plunger and check valve mechanism,
Bulb plunger is provided with fuel feed hole, and gap adjustment plunger is provided with oil-filled hole, two kinds of fuel feed holes by shell and bulb plunger it
Between gap connection, two kinds of oil-filled holes are connected by gap between shell and gap adjustment plunger.The bulb of bulb plunger with
Rocking arm is connected, during work, oil circuit that the machine oil that is imported by oil pump for engine divides two-way to enter cylinder cap, all the way through oil-filled on shell
Gap adjustment is played in oil-filled hole on hole and gap adjustment plunger into gap adjustment plunger, passes through all the way through fluid control valve
The fuel feed hole on fuel feed hole and bulb plunger on shell enters bulb plunger, then flows to rocking arm by the oil outlet at the top of bulb
It is internal.Fluid control valve can change the size of oil pressure, and the operating conditions fluid control valve output that car running computer can be as needed is not
With fluid to control rocking arm to switch to different working conditions.
Preferably, the bulb plunger is global formation, the hollow structure of sealed bottom, and hollow space is set to plunger cavity
Room.Bulb plunger opening is small, and inner space is big, alleviates weight, and the structure of plunger chamber contributes to the stabilization of output pressure.
Preferably, the outer side is provided with upper swivelling chute and lower swivelling chute, and the fuel feed hole is located in upper swivelling chute, institute
Oil-filled hole is stated in lower swivelling chute.The shape facility purpose of upper swivelling chute and lower swivelling chute is in the pilot hole placed with it
Wall keeps certain distance to produce cavity, the fluid that pilot hole provides uniformly is entered from fuel feed hole or oil-filled hole, on
Swivelling chute set after mounting with the oil-feed hole horizontal in bulb plunger similar in position, so as to bulb plunger provide fluid,
Similarly, lower swivelling chute be arranged on assembling after with the oil-filled hole horizontal on gap adjustment plunger similar in position, to be adjusted to gap
Segmented column plug provides fluid.
Preferably, interior stopper slot is provided with the inside of the shell at fuel feed hole, is located at oil-feed on the outside of the bulb plunger
Swivelling chute is provided with hole, snap ring is provided between interior stopper slot and swivelling chute.Interior stopper slot is arranged on shell inside upper part, ball head column
For the swivelling chute of plug positioned at position similar in level, its role is to limit the upright position of snap ring to limit bulb plunger vertical
Stroke on direction.
Preferably, the chamber formed between the gap adjustment plunger upper part and the bulb plunger bottom is set to low pressure
Room, the chamber formed between gap adjustment plunger base and the outer casing bottom are hyperbaric chamber, are led between low-pressure chamber and hyperbaric chamber
Cross check valve mechanism connection.Gap fluid is adjusted to flow into simultaneously through the oil-filled hole on shell and the oil-filled hole on gap adjustment plunger
Full of low-pressure chamber, the fluid in low-pressure chamber is flowed into by check valve mechanism and is full of hyperbaric chamber again, is reached by the change of oil pressure
The effect of gap adjustment.
Preferably, the check valve mechanism includes：Gap adjustment plunger base is provided with ball seat, and check-valves is provided with below ball seat
Ball, check-valve ball have check-valve spring, and check-valve ball and check-valve spring are covered with non-return valve seat, provided with return spring,
One end offsets with outer casing bottom, and one end, which is placed on outside non-return valve seat, makes non-return valve seat be offseted with gap adjustment plunger base.In ball seat
Between be provided with aperture, and the molded line of lower section allows it to be brought into close contact with check-valve ball through design, and the regulation gap that this mechanism makes is used
Fluid can enter hyperbaric chamber from low-pressure chamber by check valve mechanism, it is on the contrary then can not.
Preferably, when bulb plunger and the gap adjustment plunger moves in shell, it is revealed gap length and kept not
Become.This function is reached by the design of the line style of shell, plunger and gap adjustment plunger, adds the reliability of mechanism.
Preferably, the quantity of fuel feed hole is multiple in fuel feed hole and the bulb plunger on the shell, is evenly distributed on
On circumference.Two traditional fuel feed holes, oil-feed efficiency is low, may not reach desired operating pressure, the design of multiple fuel feed holes,
Such as four, relative to the solid plunger oil-feed efficiency high of only two oilholes, enough fluid is set to be full of in plunger cavity, oil pressure
It is swift in response during switching, ensures to be timely transmitted in rocking arm during oil pressure change.
The beneficial effects of the present invention are：Mechanism of the present invention is simple and reliable, and assembling is compact, and processing is also very easy, rises simultaneously
The machine oil for providing different pressures to the gap adjustment of cam and rocking arm and to rocking arm is saved with changing the two kinds of effects of its working condition
Space in cylinder cap, bulb plunger are made up of one piece of direct punching press of iron plate, and inside is hollow chamber, weight is slim and graceful, is provided with more
Individual fuel feed hole, relative to the solid plunger oil-feed efficiency high of only two oilholes, oil pressure is swift in response when switching.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of the present invention.
Fig. 2 is Fig. 1 Structure explosion diagram.
Fig. 3 is Fig. 1 profile.
Fig. 4 is the structural representation of shell of the present invention.
Fig. 5 is Fig. 4 profile.
Fig. 6 is the structural representation of bulb plunger of the present invention.
Fig. 7 is Fig. 6 profile.
Fig. 8 is the profile of gap adjustment plunger of the present invention.
In figure：1st, shell；1a, fuel feed hole；1b, oil-filled hole；1c, upper swivelling chute；1d, lower swivelling chute；1e, interior stopper slot；
2nd, bulb plunger；2a, oil outlet；2b, fuel feed hole；2c, swivelling chute；2d, bulb；3rd, snap ring；4th, gap adjustment plunger；4a, fill
Oilhole；4b, ball seat；5th, check-valve ball；6th, non-return valve seat；7th, check-valve spring；8th, return spring；9th, plunger chamber；10th, low pressure
Room；11st, hyperbaric chamber.
Embodiment
Below by embodiment and accompanying drawing, the present invention is further illustrated.
Embodiment is：As shown in figures 1-8, double oil circuit hydraulic lashes for driving valve rocker change working are adjusted
Device, including shell 1, bulb plunger 2 and check valve mechanism, bulb plunger 2 and check valve mechanism are assemblied in shell 1.Ball head column
Plug 2 is global formation, the hollow structure of sealed bottom, and hollow space is set to plunger chamber 9, and the top of bulb plunger 2 is set to bulb
Have oil outlet 2a at the top of 2d, bulb 2d, shell 1 is provided with fuel feed hole 1a and oil-filled hole 1b, bulb plunger 2 and check valve mechanism it
Between be provided with gap adjustment plunger 4, bulb plunger 2 is provided with fuel feed hole 2b, and gap adjustment plunger 4 is provided with oil-filled hole 4a, oil-feed
Hole 1a and fuel feed hole 2b is connected by the gap between shell 1 and bulb plunger 2, and oil-filled hole 1b and oil-filled hole 4a pass through shell 1
Gap connection between gap adjustment plunger 4, the bulb 2d of bulb plunger 2 are connected with rocking arm.
Wherein, the outside of shell 1 is provided with upper swivelling chute 1c and lower swivelling chute 1d, fuel feed hole 1a are located in upper swivelling chute 1c, fills
Oilhole 1b is located in lower swivelling chute 1d.Upper swivelling chute 1c and lower swivelling chute 1d shape facility purpose are the guiding placed with it
Hole inwall keeps certain distance to produce cavity, allows fluid that pilot hole provides uniformly from fuel feed hole 1a or oil-filled hole 1b
Into, upper swivelling chute 1c set after mounting with the fuel feed hole 2b levels in bulb plunger 2 similar in position, so as to ball head column
Plug 2 provides fluid, similarly, lower swivelling chute 1d set after mounting with the oil-filled hole 4a levels on gap adjustment plunger 4 similar in
Position, to provide fluid to gap adjustment plunger 4.
And the inner side of shell 1 is provided with interior stopper slot 1e at fuel feed hole 1a, the outside of bulb plunger 2 is set at fuel feed hole 2b
There is swivelling chute 2c, snap ring 3 is provided between interior stopper slot 1e and swivelling chute 2c.Interior stopper slot 1e is arranged on the inside upper part of shell 1, ball
For the swivelling chute 2c of headpin plug 2 positioned at position similar in level, its role is to limit the upright position of snap ring 3 to limit ball head column
Fill in 2 stroke in vertical direction.
The chamber formed between the top of gap adjustment plunger 4 and the bottom of bulb plunger 2 is set to low-pressure chamber 10, gap adjustment post
It is hyperbaric chamber 11 to fill in the chamber formed between 4 bottoms and the bottom of the shell 1, passes through non-return between low-pressure chamber 10 and hyperbaric chamber 11
Valve system connects, and check valve mechanism includes：The bottom of gap adjustment plunger 4 is provided with ball seat 4b, and check-valve ball is provided with below ball seat 4b
5, check-valve ball 5 has check-valve spring 7, and check-valve ball 5 and check-valve spring 7 are covered with non-return valve seat 6, return spring 8
One end offsets with the bottom of shell 1, and one end, which is placed on outside non-return valve seat 6, makes non-return valve seat 6 be offseted with the bottom of gap adjustment plunger 4, ball
Aperture is provided among seat 4b, and the molded line of lower section allows it to be brought into close contact with check-valve ball 5 through design, adjusts gap fluid
Flowed into through the oil-filled hole 4a on oil-filled the hole 1b and gap adjustment plunger 4 on shell 1 and be full of low-pressure chamber 10, in low-pressure chamber 10
Fluid is flowed into by check valve mechanism and is full of hyperbaric chamber 11 again, it is on the contrary then can not, gap adjustment is reached by the change of oil pressure
Effect.
In addition, the design of the line style by shell 1, bulb plunger 2 and gap adjustment plunger 4, makes bulb plunger 2 and gap
When pilot plunger 4 is moved in shell 1, it is revealed gap length and keeps constant, adds the reliability of mechanism.
In the present embodiment, on shell 1 in fuel feed hole 1a and bulb plunger 2 fuel feed hole 2b quantity be it is multiple, such as four
Individual, being uniformly distributed circumferentially, makes enough fluid be full of in plunger cavity, and oil pressure is swift in response when switching, and ensures that oil pressure becomes
It can be timely transmitted to during change in rocking arm.
Operation principle is that the machine oil imported by oil pump for engine divides the oil circuit that two-way enters cylinder cap：All the way through on shell 1
Oil-filled hole 4a on oil-filled hole 1b and gap adjustment plunger 4 plays gap adjustment into gap adjustment plunger 4；All the way through fluid
Control valve enters bulb plunger 2 by the fuel feed hole 2b on the fuel feed hole 1a and bulb plunger 2 on shell 1, then passes through bulb 2d
The oil outlet 2a at top is flowed to inside rocking arm.Fluid control valve can change the size of oil pressure, the work that car running computer can be as needed
Condition control fluid control valve exports different fluid to control rocking arm to switch to different working conditions.
The specific embodiment of the present invention is the foregoing is only, but the architectural feature of the present invention is not limited thereto, the present invention
It can be used on similar product, any those skilled in the art is in the field of the invention, and the change or modification made are all
Cover among the scope of the claims of the present invention.
Claims (6)
1. double oil circuit hydraulic lash adjusters for driving valve rocker change working, including shell（1）, bulb plunger（2）
And check valve mechanism, bulb plunger（2）And check valve mechanism is assemblied in shell（1）It is interior, bulb plunger（2）Top is set to bulb
（2d）, bulb（2d）Oil outlet is arranged at top（2a）, it is characterised in that：The shell（1）It is provided with fuel feed hole（1a）With oil-filled hole
（1b）, the bulb plunger（2）Gap adjustment plunger is provided between check valve mechanism（4）, bulb plunger（2）It is provided with oil-feed
Hole（2b）, gap adjustment plunger（4）It is provided with oil-filled hole（4a）, fuel feed hole（1a）And fuel feed hole（2b）Pass through shell（1）And ball
Headpin plug（2）Between gap connection, oil-filled hole（1b）With oil-filled hole（4a）Pass through shell（1）With gap adjustment plunger（4）It
Between gap connection；
The bulb plunger（2）For global formation, the hollow structure of sealed bottom, hollow space is set to plunger chamber（9）, it is described
Gap adjustment plunger（4）Top and bulb plunger（2）The chamber formed between bottom is set to low-pressure chamber（10）；
The shell（1）Upper fuel feed hole（1a）With the bulb plunger（2）Upper fuel feed hole（2b）Quantity to be multiple, be uniformly distributed
Circumferentially.
2. the double oil circuit hydraulic lash adjusters for being used to drive valve rocker change working stated according to claim 1, its feature
It is：The shell（1）Outside is provided with upper swivelling chute（1c）With lower swivelling chute（1d）, the fuel feed hole（1a）Located at upper swivelling chute
（1c）In, the oil-filled hole（1b）Located at lower swivelling chute（1d）In.
3. the double oil circuit hydraulic lash adjusters according to claim 1 for being used to drive valve rocker change working, it is special
Sign is：The shell（1）Inner side is located at fuel feed hole（1a）Place is provided with interior stopper slot（1e）, the bulb plunger（2）Outside position
In fuel feed hole（2b）Place is provided with swivelling chute（2c）, interior stopper slot（1e）And swivelling chute（2c）Between be provided with snap ring（3）.
4. the double oil circuit hydraulic lash adjusters according to claim 1 for being used to drive valve rocker change working, it is special
Sign is：The gap adjustment plunger（4）Bottom and the shell（1）The chamber formed between bottom is hyperbaric chamber（11）, it is low
Pressure chamber（10）And hyperbaric chamber（11）Between connected by check valve mechanism.
5. the double oil circuit hydraulic lash adjusters according to claim 4 for being used to drive valve rocker change working, it is special
Sign is：The check valve mechanism includes：Gap adjustment plunger（4）Bottom is provided with ball seat（4b）, ball seat（4b）Lower section is provided with only
Return valve ball（5）, check-valve ball（5）Have check-valve spring（7）, check-valve ball（5）And check-valve spring（7）It is covered with non-return
Valve seat（6）, provided with return spring（8）, one end and shell（1）Bottom offsets, and one end is placed on non-return valve seat（6）Make non-return valve seat outside
（6）With gap adjustment plunger（4）Bottom offsets.
6. according to claim any one of 1-5 be used for drive double oil circuit hydraulic lashes of valve rocker change working to adjust
Device, it is characterised in that：The bulb plunger（2）With gap adjustment plunger（4）In shell（1）During middle motion, it reveals gap length
Degree keeps constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510840799.XA CN105317492B (en) | 2015-11-27 | 2015-11-27 | For driving double oil circuit hydraulic lash adjusters of valve rocker change working |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510840799.XA CN105317492B (en) | 2015-11-27 | 2015-11-27 | For driving double oil circuit hydraulic lash adjusters of valve rocker change working |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105317492A CN105317492A (en) | 2016-02-10 |
| CN105317492B true CN105317492B (en) | 2018-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510840799.XA Active CN105317492B (en) | 2015-11-27 | 2015-11-27 | For driving double oil circuit hydraulic lash adjusters of valve rocker change working |
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| Country | Link |
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| CN (1) | CN105317492B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110879636A (en) * | 2018-09-06 | 2020-03-13 | 重庆鸿智亿达电子科技有限公司 | Internal shear guide shaft for internal shear cavity for notebook production |
| CN109065935B (en) * | 2018-09-21 | 2024-02-02 | 南京大学昆山创新研究院 | Adjustable fuel cell end plate assembly and electric pile formed by same |
| CN110671166A (en) * | 2019-10-30 | 2020-01-10 | 东风汽车零部件(集团)有限公司襄阳粉末冶金分公司 | Hydraulic tappet for valve actuating mechanism of diesel engine |
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|---|---|---|---|---|
| DE10330510A1 (en) * | 2003-07-05 | 2005-01-27 | Ina-Schaeffler Kg | Support element for controlled cam follower of valve gear of internal combustion engine has two paths extending from outer casing of housing for differently pressurized hydraulic medium through support element |
| CN103939162A (en) * | 2014-03-24 | 2014-07-23 | 杭州新坐标科技股份有限公司 | Columnar hydraulic tappet |
| CN103939164A (en) * | 2014-04-25 | 2014-07-23 | 安徽江淮汽车股份有限公司 | Engine valve clearance adjuster |
| CN205172664U (en) * | 2015-11-27 | 2016-04-20 | 杭州新坐标科技股份有限公司 | A two oil circuit hydraulic pressure clearance adjustment wares for driving conversion of valve rocker operating mode |
| CN106471224A (en) * | 2014-06-26 | 2017-03-01 | 舍弗勒技术股份两合公司 | Support component |
-
2015
- 2015-11-27 CN CN201510840799.XA patent/CN105317492B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10330510A1 (en) * | 2003-07-05 | 2005-01-27 | Ina-Schaeffler Kg | Support element for controlled cam follower of valve gear of internal combustion engine has two paths extending from outer casing of housing for differently pressurized hydraulic medium through support element |
| CN103939162A (en) * | 2014-03-24 | 2014-07-23 | 杭州新坐标科技股份有限公司 | Columnar hydraulic tappet |
| CN103939164A (en) * | 2014-04-25 | 2014-07-23 | 安徽江淮汽车股份有限公司 | Engine valve clearance adjuster |
| CN106471224A (en) * | 2014-06-26 | 2017-03-01 | 舍弗勒技术股份两合公司 | Support component |
| CN205172664U (en) * | 2015-11-27 | 2016-04-20 | 杭州新坐标科技股份有限公司 | A two oil circuit hydraulic pressure clearance adjustment wares for driving conversion of valve rocker operating mode |
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| CN105317492A (en) | 2016-02-10 |
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