CN207377616U - A kind of hydraulic-driven variable valve actuator for air of low voltage control high pressure - Google Patents
A kind of hydraulic-driven variable valve actuator for air of low voltage control high pressure Download PDFInfo
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- CN207377616U CN207377616U CN201721505997.1U CN201721505997U CN207377616U CN 207377616 U CN207377616 U CN 207377616U CN 201721505997 U CN201721505997 U CN 201721505997U CN 207377616 U CN207377616 U CN 207377616U
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Abstract
This patent belongs to technical field of engines, is related to a kind of hydraulic-driven variable valve actuator for air of low voltage control high pressure.This patent is made of plunger spring, plunger, high-pressure limiting valve, low pressure pressure limiting valve, high-speed electromagnetic valve, plunger bushing, automatically controlled throttle valve, piston bush, valve piston, valve spring, valve etc.；Plunger is equipped with oil groove, is equipped with oil duct in plunger bushing and piston bush, and has connection oil pipe between each component.When high-speed electromagnetic valve is powered, the hydraulic circuit connection of control plunger movement makes plunger move down the high-pressure oil passage of conducting control valve opening, makes valve opening；When high-speed electromagnetic valve powers off, plunger return under the active force of plunger spring separates the high-pressure oil passage of control valve opening, the low pressure oil way of air valve drop is controlled to turn on, and valve is fallen after rise, and the air valve drop later stage carries out cushioning control of taking a seat by automatically controlled throttle valve to valve.This patent can realize valve timing and open duration continuous variable, and have the advantages that drive low energy consumption, reliability is high.
Description
Technical field
The utility model belongs to technical field of engines, and in particular to a kind of variable gas of hydraulic-driven of low voltage control high pressure
Door mechanism.
Background technology
Valve actuating mechanism is one of important component of internal combustion engine, is to realize engine breathing process, ensures internal combustion engine heat
The working cycles of work(conversion are able to the basis constantly to go in cycles.And traditional engine is since structure is fixed,
In engine operation process, valve motion rule is changeless, and the definite of conventional engines trim analysis is in engine
After carrying out lot of experiments under various difference operating modes, a kind of compromise proposal of selection is designed, is typically only capable to ensure in a certain work
Condition makes the best performance of internal combustion engine.Obviously, this inferior position prevented its from meet at this stage to engine high-efficiency rate, low oil consumption,
The general requirement of low emission.Therefore, for the need for meeting valve timing different under different operating modes, opening duration and lift
It asks, improves internal combustion engine economy and dynamic property, reduce hazardous emission, changeable air valve technology is come into being.
The realization of engine variable-valve technology at present mainly has two kinds of forms of Mechanical Driven and hydraulic-driven.It is mechanical
Type of drive there are the problem of mainly have realize valve variable control parameters it is single；Mechanism too complex so that manufacture cost is big
Increase be subject to and functional reliability reduce；And the driving oil piping system of hydraulic drive type changeable air valve technology uses high pressure resistant electricity more
Magnet valve is controlled, and in addition to its is expensive, the most response of high pressure-resistant solenoid valve is poor at present, it is difficult to meet internal combustion engine height
Speed operating demand, and high drive also create higher driving energy consumption and generate hydraulic leak, valve body work it is durable
Property and reliability the problems such as reducing, therefore limit the development of hydraulic-driven changeable air valve technology.
The content of the invention
The purpose of the utility model is to overcome available engine valve motion rules to immobilize and above-mentioned changeable air valve
Technology cannot flexibly change the problems such as valve motion parameter and high drive shortcoming, provide a kind of simple and reliable for structure, energy consumption
Hydraulic-driven variable valve actuator for air that is low and can flexibly controlling the low voltage control high pressure of valve timing and unlatching duration.
It is realized in order to solve the above technical problems, the utility model adopts the following technical solution：
The hydraulic-driven variable valve actuator for air of a kind of low voltage control high pressure described in the utility model, by block seat 1, plunger bullet
Spring 2, plunger 3, high-pressure limiting valve 4, high-pressure oil pipe 5, oil pocket 6, low pressure pressure limiting valve 7, oil pipe a8, oil pipe b9, high-speed electromagnetic valve 10,
Oil pipe c11, plunger bushing 12, draining manifold 13, automatically controlled throttle valve 14, secondary drain mast 15, oil inlet pipe 16, piston bush 17, main draining
Pipe 18, plunger shaft 19, valve piston 20, valve spring 21, cotter seat 22, valve 23 form；Wherein, block seat 1 passes through spiral shell
Line at 1204 lower inlet of plunger hole on plunger bushing 12 with being connected；Plunger spring 2 is mounted on the plunger hole on plunger bushing 12
In 1204, and its upper and lower ends is respectively and fixedly connected to 1 top of 3 bottom of plunger and block seat；Plunger 3 is mounted on the plunger on plunger bushing 12
In hole 1204, and it is slidably connected with 1204 inner wall of plunger hole；Region between 3 top of plunger and 1204 inner wall of plunger hole forms oil
Chamber 6；High-pressure oil pipe 5 is three-way pipe structure, and three of them port is respectively communicated with high pressure fuel source, high-pressure limiting valve 4 and low pressure pressure limiting valve
7；High-pressure limiting valve 4 be mounted on plunger bushing 12 on high-pressure limiting valve mounting hole 1202 in, and with the oil duct on plunger bushing 12
B1203 is communicated；Low pressure pressure limiting valve 7 is serially connected between high-pressure oil pipe 5 and oil pipe a8；Oil pipe b9 and the oil duct on plunger bushing 12
C1205 is communicated；Three ports of high-speed electromagnetic valve 10 communicate respectively with oil pipe a8, oil pipe b9, oil pipe c11；Oil pipe c11 and low pressure
Oil sources communicates；Draining manifold 13 is also three-way pipe structure, three of them port respectively on plunger bushing 12 oil duct e1207, pair lets out
Oil pipe 15 is connected with main drain mast 18；Automatically controlled throttle valve 14 is serially connected on secondary drain mast 15；On secondary drain mast 15 and piston bush 17
Secondary draining road 1702 communicate；Oil inlet pipe 16 and 1703 phase of oil input channel on the oil duct d1206 and piston bush 17 on plunger bushing 12
It is logical；Main drain mast 18 is communicated with the main draining road 1701 on piston bush 17；Plunger shaft 19 is 20 top of valve piston and piston bush
The region formed between 1704 inner wall of valve piston hole on 17；Valve piston 20 is mounted on the valve piston hole on piston bush 17
In 1704, and it is slidably connected with 1704 inner wall of valve piston hole；21 upper and lower ends of valve spring are respectively by 20 bottom of valve piston
End and 22 /V of cotter seat；23 top of valve is fixed in 20 bottom of valve piston.
It is characterized in that the plunger 3 is equipped with draining annular groove 301, into oil ring groove 302；It is set on the plunger bushing 12
There are oil duct a1201, high-pressure limiting valve mounting hole 1202, oil duct b1203, plunger hole 1204, oil duct c1205, oil duct d1206, oil
Road e1207；Wherein, oil duct a1201, oil duct b1203, oil duct c1205, oil duct d1206, oil duct e1207 with plunger hole 1204
It communicates；Oil duct a1201 is identical with oil duct e1207 diameters and on the same axis, in addition, oil duct a1201 also with low pressure oil sources
It communicates；The connection of oil duct a1201 and oil duct e1207 can be controlled with partition by draining annular groove 301；Oil duct b1203 and oil duct
D1206 diameters are identical and on same axis；The connection of oil duct b1203 and oil duct d1206 and partition can be by into oil ring grooves
302 control.
High pressure oil in the high-pressure oil pipe 5 can maintain stable high pressure conditions after high-pressure limiting valve 4, and can push away
20 downlink of dynamic valve piston；High pressure oil pressure reduction after low pressure pressure limiting valve 7 in high-pressure oil pipe 5, but its pressure remains above
The pressure of low pressure oil sources, and disclosure satisfy that the work requirements of high-speed electromagnetic valve 10.
The high-speed electromagnetic valve 10 is two-bit triplet solenoid valve；When high-speed electromagnetic valve 10 is in "on" position, oil pipe
A8, high-speed electromagnetic valve 10, oil pipe b9 are communicated, and the hydraulic oil by 7 pressure release of low pressure pressure limiting valve enters oil pocket 6, and plunger 3 is in hydraulic oil
Pressure under move downward, when hydraulic fluid pressure and 2 active force of plunger spring balance each other into oil ring groove 302 just with oil duct
B1203 is connected completely with oil duct d1206；When high-speed electromagnetic valve 10 is in off-position, oil pipe c11, high-speed electromagnetic valve 10, oil
Pipe b9 is communicated, the return under the active force of plunger spring 2 of plunger 3, and hydraulic oil in oil pocket 6 is promoted to be flowed out from oil pipe c11, at this point,
Draining annular groove 301 connects completely with oil duct a1201 and oil duct e1207.
The piston bush 17 is equipped with main draining road 1701, secondary draining road 1702, oil input channel 1703, valve piston hole
1704；Wherein, main draining road 1701, secondary draining road 1702 and oil input channel 1703 are communicated with valve piston hole 1704；Main draining
Road 1701, secondary draining road 1702 are located at 17 side wall upper part of piston bush, and main draining road 1701 is located at secondary 1702 lower section of draining road；
Oil input channel 1703 is located at 17 top of piston bush.
The course of work of the utility model device is as follows：
When valve 23 needs to open, high-speed electromagnetic valve 10 is powered, and oil pipe a8, high-speed electromagnetic valve 10, oil pipe b9 are communicated, warp
The hydraulic oil for crossing 7 pressure release of low pressure pressure limiting valve enters oil pocket 6, and plunger 3 moves downward under the pressure of hydraulic oil, works as hydraulic fluid pressure
It is just connected completely with oil duct b1203 and oil duct d1206 into oil ring groove 302 when balancing each other with 2 active force of plunger spring, and draining
Annular groove 301 separates completely with oil duct a1201 and oil duct e1207；At this point, the high pressure oil through 4 voltage stabilizing of high-pressure limiting valve passes through oil duct
B1203, enter plunger shaft 19 into oil ring groove 302, oil duct d1206, oil inlet pipe 16 and oil input channel 1703, promote 20 grams of valve piston
Taking the active force of valve spring 21 opens valve 23.
When valve 23 needs to close, high-speed electromagnetic valve 10 powers off so that oil pipe b9, high-speed electromagnetic valve 10, oil pipe c11 phases
Logical, the return under the active force of plunger spring 2 of plunger 3 promotes hydraulic oil in oil pocket 6 to be flowed out from oil pipe c11, at this point, draining ring
Slot 301 connects completely with oil duct a1201 and oil duct e1207, and into oil ring groove 302 and oil duct b1203 and oil duct d1206 completely every
It is disconnected；At this point, under the active force of valve spring 21,23 uplink of valve is promoted；It takes a seat initial stage in valve 23, hydraulic oil mainly passes through
Main draining road 1701, main drain mast 18, draining manifold 13, oil duct e1207, draining annular groove 301, oil duct a1201 outflows；In valve
23 take a seat the later stage, and valve piston 20 closes main draining road 1701, and hydraulic oil passes through secondary draining road 1702, secondary drain mast 15, draining
Manifold 13, oil duct e1207, draining annular groove 301, oil duct a1201 outflows, wherein, the automatically controlled throttle valve concatenated on secondary drain mast 15
14 apertures can be adjusted according to engine speed, and form throttling action to hydraulic oil, slow so as to valve 23 take a seat
Punching control meets the seating velocity demand for control of valve 23 under different engine operating mode.
When needing the unlatching of valve 23 timing in advance, shift to an earlier date the energization moment of high-speed electromagnetic valve 10；When need postpone valve
During 23 unlatching timing, the energization moment of high-speed electromagnetic valve 10 is postponed.
When needing to increase the unlatching duration of valve 23, the power-cut time of high-speed electromagnetic valve 10 is postponed；When need reduce gas
When door 23 opens the duration, shift to an earlier date the power-cut time of high-speed electromagnetic valve 10.
The beneficial effects of the utility model are compared with prior art：
1. the hydraulic-driven variable valve actuator for air of low voltage control high pressure provided by the utility model can realize valve timing and
The continuous variable of valve duration phase, control are flexible；
2. the hydraulic-driven variable valve actuator for air of low voltage control high pressure provided by the utility model has at air valve drop initial stage
There is quick response, and cushioning control is provided in the air valve drop later stage, realize soft take a seat；
3. the hydraulic-driven variable valve actuator for air of low voltage control high pressure provided by the utility model can realize gasoline engine without section
Valve spatial load forecasting reduces pumping loss, improves volumetric efficiency, achievees the effect that energy-saving and emission-reduction；
4. high speed electromagnetic used by the hydraulic-driven variable valve actuator for air of low voltage control high pressure provided by the utility model
Valve have the advantages that driving low energy consumption, stability is good, safe, can reducing mechanism driving energy consumption, further improve economy
Property.
Description of the drawings
Fig. 1 is the structure diagram of the hydraulic-driven variable valve actuator for air of low voltage control high pressure
Fig. 2 is the structure diagram of plunger 3 in Fig. 1
Fig. 3 is the structure diagram of plunger bushing 12 in Fig. 1
Fig. 4 is the structure diagram of piston bush 17 in Fig. 1
Wherein, 1. block seat, 2. plunger spring, 3. plunger, 4. high-pressure limiting valve, 5. high-pressure oil pipe, 6. oil pocket, 7. low pressure limits
13. draining manifold of pressure valve 8. oil pipe a, 9. oil pipe b, 10. high-speed electromagnetic valve, 11. oil pipe c, 12. plunger bushings, 14. automatically controlled throttlings
18. 20. valve piston of main 19. plunger shaft of drain mast of secondary drain mast 16. oil inlet pipe, 17. piston bush of valve 15., 21. valve
22. cotter seat of spring, 23. valve, 301. draining annular groove 302. is into 1201. oil duct a of oil ring groove, 1202. high pressure pressure limitings
1207. oil duct e of valve mounting hole 1203. oil duct b, 1204. plunger hole, 1205. oil duct c, 1206. oil duct d, 1701. main drainings
1703. oil input channel of the secondary draining road in road 1702., 1704. valve piston hole
Specific embodiment
1-4 is described in detail the utility model below in conjunction with the accompanying drawings：
Referring to the drawings 1-4：
The utility model is limited by block seat 1, plunger spring 2, plunger 3, high-pressure limiting valve 4, high-pressure oil pipe 5, oil pocket 6, low pressure
Pressure valve 7, oil pipe a8, oil pipe b9, high-speed electromagnetic valve 10, oil pipe c11, plunger bushing 12, draining manifold 13, automatically controlled throttle valve 14, pair
Drain mast 15, oil inlet pipe 16, piston bush 17, main drain mast 18, plunger shaft 19, valve piston 20, valve spring 21, valve spring
Seat 22, valve 23 form.
Wherein, block seat 1 by screw thread with being connected at 1204 lower inlet of plunger hole on plunger bushing 12；It acts as to column
It fills in spring 2 and carries out /V；
Plunger spring 2 is mounted in the plunger hole 1204 on plunger bushing 12, and its upper and lower ends is respectively and fixedly connected to 3 bottom of plunger
1 top of portion and block seat；The uplink movement that plunger spring 2 is plunger 3 in plunger hole 1204 provides restoring force；
Plunger 3 is mounted in the plunger hole 1204 on plunger bushing 12, and is slidably connected with 1204 inner wall of plunger hole；Plunger 3
Sliding up and down in plunger hole 1204 can control the connection of oil duct a1201 and oil duct e1207 and partition and oil duct b1203
With oil duct d1206 connect and partition；
High-pressure limiting valve 4 is mounted in the high-pressure limiting valve mounting hole 1202 on plunger bushing 12, its one end and high-pressure oil pipe 5
Port communicate, the other end is communicated with the oil duct b1203 on plunger bushing 12；High pressure oil in high-pressure oil pipe 5 passes through high pressure pressure limiting
Stable high pressure conditions can be maintained after valve 4；
High-pressure oil pipe 5 is three-way pipe structure, and three of them port is respectively communicated with high pressure fuel source, high-pressure limiting valve 4 and low pressure limit
Pressure valve 7；
The region that oil pocket 6 is formed between 3 top of plunger and 1204 inner wall of plunger hole；
7 one end of low pressure pressure limiting valve is communicated with the port of high-pressure oil pipe 5, and the other end is communicated with oil pipe a8；In high-pressure oil pipe 5
High pressure oil pressure after low pressure pressure limiting valve 7 reduces, but its pressure remains above the pressure of low pressure oil sources, and disclosure satisfy that electricity at a high speed
The work requirements of magnet valve 10；
The one end of three ports of high-speed electromagnetic valve 10 respectively with oil pipe a8, oil pipe b9, oil pipe c11 communicates, in addition, oil pipe
The b9 other ends are communicated with the oil duct c1205 on plunger bushing 12, and the oil pipe c11 other ends are communicated with low pressure oil sources；
High-speed electromagnetic valve 10 is two-bit triplet solenoid valve；When high-speed electromagnetic valve 10 is in "on" position, oil pipe a8, high speed
Solenoid valve 10, oil pipe b9 are communicated, and the hydraulic oil by 7 pressure release of low pressure pressure limiting valve enters oil pocket 6, and plunger 3 is in the pressure of hydraulic oil
Under move downward, when hydraulic fluid pressure and 2 active force of plunger spring balance each other into oil ring groove 302 just with oil duct b1203 and
Oil duct d1206 is connected completely；When high-speed electromagnetic valve 10 is in off-position, oil pipe c11, high-speed electromagnetic valve 10, oil pipe b9 phases
Logical, the return under the active force of plunger spring 2 of plunger 3 promotes hydraulic oil in oil pocket 6 to be flowed out from oil pipe c11, at this point, draining ring
Slot 301 connects completely with oil duct a1201 and oil duct e1207；
Draining manifold 13 is three-way pipe structure, three of them port respectively with oil duct e1207, the secondary drain mast on plunger bushing 12
15 connect with main drain mast 18；
One end of secondary drain mast 15 is communicated with draining manifold 13, the other end and secondary 1702 phase of draining road on piston bush 17
It is logical；It takes a seat the later stage in valve 23, hydraulic oil is flowed out by secondary drain mast 15；
One end of main drain mast 18 is communicated with draining manifold 13, the other end and main 1701 phase of draining road on piston bush 17
It is logical；It takes a seat initial stage in valve 23, hydraulic oil is mainly flowed out by main drain mast 18；
Automatically controlled throttle valve 14 is serially connected on secondary drain mast 15；Its aperture can be adjusted according to engine speed, and to liquid
Pressure oil forms throttling action, so as to carry out cushioning control of taking a seat to valve 23, reduces the seating velocity of valve 23；
16 one end of oil inlet pipe is communicated with the oil duct d1206 on plunger bushing 12, the other end and the oil input channel on piston bush 17
1703 communicate；High pressure oil can be imported plunger shaft 19；
The area that plunger shaft 19 is formed between 1704 inner wall of valve piston hole on 20 top of valve piston and piston bush 17
Domain；
Valve piston 20 be mounted on piston bush 17 on valve piston hole 1704 in, and with 1704 inner wall of valve piston hole
It is slidably connected；
21 upper and lower ends of valve spring are respectively by 22 /V of 20 bottom of valve piston and cotter seat；It has when mounted
There is certain pretightning force, restoring force is provided for 23 return of valve and ensure the reliability that valve 23 moves；
23 top of valve is fixed in 20 bottom of valve piston.
Referring to the drawings 2：
The plunger 3 is equipped with draining annular groove 301, into oil ring groove 302.
Wherein, draining annular groove 301 can control the connection and partition of oil duct a1201 and oil duct e1207；
It can control the connection and partition of oil duct b1203 and oil duct d1206 into oil ring groove 302.
Referring to the drawings 3：
The plunger bushing 12 is equipped with oil duct a1201, high-pressure limiting valve mounting hole 1202, oil duct b1203, plunger hole
1204th, oil duct c1205, oil duct d1206, oil duct e1207.
Wherein, oil duct a1201, oil duct b1203, oil duct c1205, oil duct d1206, oil duct e1207 with plunger hole 1204
It communicates；
Oil duct a1201 is identical with oil duct e1207 diameters and on the same axis, in addition, oil duct a1201 also with low pressure oil
Source communicates；When oil duct a1201 is connected with oil duct e1207 by draining annular groove 301, the low pressure oil way that control valve 23 is fallen after rise connects
It is logical；
Oil duct b1203 is identical with oil duct d1206 diameters and on same axis；When oil duct b1203 and oil duct d1206 lead to
Cross into oil ring groove 302 connect when, control valve 23 open high-pressure oil passage connection.
Referring to the drawings 4：
The piston bush 17 is equipped with main draining road 1701, secondary draining road 1702, oil input channel 1703, valve piston hole
1704。
Wherein, main draining road 1701, secondary draining road 1702 and oil input channel 1703 are communicated with valve piston hole 1704；Master lets out
Oil duct 1701, secondary draining road 1702 and oil input channel 1703 for hydraulic oil in plunger shaft 19 disengaging access；
Main draining road 1701, secondary draining road 1702 are located at 17 side wall upper part of piston bush, and main draining road 1701 is located at pair
1702 lower section of draining road；It takes a seat initial stage in valve 23, hydraulic oil is mainly flowed out by main draining road 1701；After valve 23 is taken a seat
Phase, hydraulic oil are flowed out by secondary draining road 1702；
Oil input channel 1703 is located at 17 top of piston bush；
Valve piston hole 1704 provides installation site for valve piston 20, and 1704 inner wall of valve piston hole is lived for valve
Plug 20 moves up and down offer guiding role.
With reference to each component of the utility model device and its installation site relation, the hydraulic-driven of the low voltage control high pressure is variable
The specific work process and control principle of valve mechanism technical solution are as follows：
When valve needs to open：
High-speed electromagnetic valve 10 is powered, and oil pipe a8, high-speed electromagnetic valve 10, oil pipe b9 are communicated, by 7 pressure release of low pressure pressure limiting valve
Hydraulic oil enters oil pocket 6, and plunger 3 moves downward under the pressure of hydraulic oil, when hydraulic fluid pressure and 2 active force phase of plunger spring
It is just connected completely with oil duct b1203 and oil duct d1206 into oil ring groove 302 during balance, and draining annular groove 301 and oil duct a1201
Separate completely with oil duct e1207；At this point, the high pressure oil through 4 voltage stabilizing of high-pressure limiting valve by oil duct b1203, into oil ring groove 302,
Oil duct d1206, oil inlet pipe 16 and oil input channel 1703 enter plunger shaft 19, and valve piston 20 is promoted to overcome the effect of valve spring 21
Power opens valve 23.
When valve needs to close：
High-speed electromagnetic valve 10 powers off so that oil pipe b9, high-speed electromagnetic valve 10, oil pipe c11 are communicated, and plunger 3 is in plunger spring 2
Active force under return, hydraulic oil in oil pocket 6 is promoted to be flowed out from oil pipe c11, at this point, draining annular groove 301 and oil duct a1201 and oil
Road e1207 is connected completely, and is separated completely into oil ring groove 302 and oil duct b1203 and oil duct d1206；At this point, in valve spring 21
Active force under, promote 23 uplink of valve.
Air valve drop cushioning control：
It takes a seat initial stage in valve 23, hydraulic oil mainly passes through main draining road 1701, main drain mast 18, draining manifold 13, oil
Road e1207, draining annular groove 301, oil duct a1201 outflows；It takes a seat the later stage in valve 23, valve piston 20 closes main draining road
1701, hydraulic oil passes through secondary draining road 1702, secondary drain mast 15, draining manifold 13, oil duct e1207, draining annular groove 301, oil duct
A1201 flows out, wherein, 14 aperture of automatically controlled throttle valve concatenated on secondary drain mast 15 can be adjusted according to engine speed, and
Throttling action is formed to hydraulic oil, so as to carry out cushioning control of taking a seat to valve 23, meets gas under different engine operating mode
The seating velocity demand for control of door 23.
Valve timing and the adjustment of unlatching duration：
When needing the unlatching of valve 23 timing in advance, shift to an earlier date the energization moment of high-speed electromagnetic valve 10；When need postpone valve
During 23 unlatching timing, the energization moment of high-speed electromagnetic valve 10 is postponed.
When needing to increase the unlatching duration of valve 23, the power-cut time of high-speed electromagnetic valve 10 is postponed；When need reduce gas
When door 23 opens the duration, shift to an earlier date the power-cut time of high-speed electromagnetic valve 10.
Claims (5)
1. a kind of hydraulic-driven variable valve actuator for air of low voltage control high pressure, by block seat (1), plunger spring (2), plunger (3), height
Press pressure limiting valve (4), high-pressure oil pipe (5), oil pocket (6), low pressure pressure limiting valve (7), oil pipe a (8), oil pipe b (9), high-speed electromagnetic valve
(10), oil pipe c (11), plunger bushing (12), draining manifold (13), automatically controlled throttle valve (14), secondary drain mast (15), oil inlet pipe
(16), piston bush (17), main drain mast (18), plunger shaft (19), valve piston (20), valve spring (21), cotter seat
(22), valve (23) forms；Wherein, block seat (1) by plunger hole (1204) lower inlet on screw thread and plunger bushing (12) at
Connection；Plunger spring (2) is mounted in the plunger hole (1204) on plunger bushing (12), and its upper and lower ends is respectively and fixedly connected to plunger
(3) bottom and block seat (1) top；Plunger (3) is mounted in the plunger hole (1204) on plunger bushing (12), and and plunger hole
(1204) inner wall is slidably connected；Region at the top of plunger (3) between plunger hole (1204) inner wall forms oil pocket (6)；High pressure oil
It is three-way pipe structure to manage (5), and three of them port is respectively communicated with high pressure fuel source, high-pressure limiting valve (4) and low pressure pressure limiting valve (7)；It is high
Press pressure limiting valve (4) be mounted on plunger bushing (12) on high-pressure limiting valve mounting hole (1202) in, and with the oil on plunger bushing (12)
Road b (1203) is communicated；Low pressure pressure limiting valve (7) is serially connected between high-pressure oil pipe (5) and oil pipe a (8)；Oil pipe b (9) and plunger bushing
(12) the oil duct c (1205) on is communicated；Three ports of high-speed electromagnetic valve (10) respectively with oil pipe a (8), oil pipe b (9), oil pipe c
(11) communicate；Oil pipe c (11) is communicated with low pressure oil sources；Draining manifold (13) be also three-way pipe structure, three of them port respectively with
Oil duct e (1207), secondary drain mast (15) on plunger bushing (12) are connected with main drain mast (18)；Automatically controlled throttle valve (14) is serially connected in
On secondary drain mast (15)；Secondary drain mast (15) communicates with the secondary draining road (1702) on piston bush (17)；Oil inlet pipe (16) and column
The oil input channel (1703) on oil duct d (1206) and piston bush (17) on plug sleeve (12) communicates；Main drain mast (18) and piston bush
(17) the main draining road (1701) on communicates；Plunger shaft (19) is lived for the valve at the top of valve piston (20) and on piston bush (17)
The region formed between consent (1704) inner wall；Valve piston (20) is mounted on the valve piston hole (1704) on piston bush (17)
It is interior, and be slidably connected with valve piston hole (1704) inner wall；Valve spring (21) upper and lower ends are respectively by valve piston (20)
Bottom and cotter seat (22) /V；Valve (23) top is fixed in valve piston (20) bottom.
A kind of 2. hydraulic-driven variable valve actuator for air of low voltage control high pressure described in accordance with the claim 1, it is characterised in that institute
The plunger (3) stated is equipped with draining annular groove (301), into oil ring groove (302)；The plunger bushing (12) is equipped with oil duct a
(1201), high-pressure limiting valve mounting hole (1202), oil duct b (1203), plunger hole (1204), oil duct c (1205), oil duct d
(1206), oil duct e (1207)；Wherein, oil duct a (1201), oil duct b (1203), oil duct c (1205), oil duct d (1206), oil duct e
(1207) communicated with plunger hole (1204)；Oil duct a (1201) is identical with oil duct e (1207) diameter and on same axis,
In addition, oil duct a (1201) is also communicated with low pressure oil sources；The connection of oil duct a (1201) and oil duct e (1207) can be by letting out with partition
Oil ring groove (301) controls；Oil duct b (1203) is identical with oil duct d (1206) diameter and on same axis；Oil duct b
(1203) and the connection of oil duct d (1206) can be by controlling with partition into oil ring groove (302).
A kind of 3. hydraulic-driven variable valve actuator for air of low voltage control high pressure described in accordance with the claim 1, it is characterised in that institute
The high pressure oil in high-pressure oil pipe (5) stated can maintain stable high pressure conditions after high-pressure limiting valve (4), and can promote valve
Piston (20) downlink；High pressure oil pressure reduction after low pressure pressure limiting valve (7) in high-pressure oil pipe (5), but its pressure remains above
The pressure of low pressure oil sources, and disclosure satisfy that the work requirements of high-speed electromagnetic valve (10).
A kind of 4. hydraulic-driven variable valve actuator for air of low voltage control high pressure described in accordance with the claim 1, it is characterised in that institute
The high-speed electromagnetic valve (10) stated is two-bit triplet solenoid valve；When high-speed electromagnetic valve (10) is in "on" position, oil pipe a (8), height
Fast solenoid valve (10), oil pipe b (9) are communicated, and the hydraulic oil by low pressure pressure limiting valve (7) pressure release enters oil pocket (6), and plunger (3) exists
It is moved downward under the pressure of hydraulic oil, it is firm into oil ring groove (302) when hydraulic fluid pressure and plunger spring (2) active force balance each other
It is good to be connected completely with oil duct b (1203) and oil duct d (1206)；When high-speed electromagnetic valve (10) is in off-position, oil pipe c
(11), high-speed electromagnetic valve (10), oil pipe b (9) are communicated, plunger (3) return under the active force of plunger spring (2), promote oil pocket
(6) interior hydraulic oil is flowed out from oil pipe c (11), at this point, draining annular groove (301) connects completely with oil duct a (1201) and oil duct e (1207)
It is logical.
A kind of 5. hydraulic-driven variable valve actuator for air of low voltage control high pressure described in accordance with the claim 1, it is characterised in that institute
The piston bush (17) stated is equipped with main draining road (1701), secondary draining road (1702), oil input channel (1703), valve piston hole
(1704)；Wherein, main draining road (1701), secondary draining road (1702) and oil input channel (1703) with valve piston hole (1704) phase
It is logical；Main draining road (1701), secondary draining road (1702) are located at piston bush (17) side wall upper part, and main draining road (1701) is located at
Below secondary draining road (1702)；Oil input channel (1703) is located at the top of piston bush (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721505997.1U CN207377616U (en) | 2017-11-13 | 2017-11-13 | A kind of hydraulic-driven variable valve actuator for air of low voltage control high pressure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721505997.1U CN207377616U (en) | 2017-11-13 | 2017-11-13 | A kind of hydraulic-driven variable valve actuator for air of low voltage control high pressure |
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| CN207377616U true CN207377616U (en) | 2018-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721505997.1U Withdrawn - After Issue CN207377616U (en) | 2017-11-13 | 2017-11-13 | A kind of hydraulic-driven variable valve actuator for air of low voltage control high pressure |
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| CN (1) | CN207377616U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676142A (en) * | 2017-11-13 | 2018-02-09 | 吉林大学 | A kind of hydraulic-driven variable valve actuator for air of low voltage control high pressure |
| WO2020057098A1 (en) * | 2018-09-20 | 2020-03-26 | 天津大学 | Engine combustion system having efficient multiple combustion modes |
| CN111156063A (en) * | 2018-11-07 | 2020-05-15 | 爱信精机株式会社 | Valve timing control device |
-
2017
- 2017-11-13 CN CN201721505997.1U patent/CN207377616U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676142A (en) * | 2017-11-13 | 2018-02-09 | 吉林大学 | A kind of hydraulic-driven variable valve actuator for air of low voltage control high pressure |
| CN107676142B (en) * | 2017-11-13 | 2023-09-29 | 吉林大学 | Hydraulic drive variable valve mechanism with low pressure control and high pressure |
| WO2020057098A1 (en) * | 2018-09-20 | 2020-03-26 | 天津大学 | Engine combustion system having efficient multiple combustion modes |
| US11143091B2 (en) | 2018-09-20 | 2021-10-12 | Tianjin University | Efficient engine combustion system with multiple combustion modes |
| CN111156063A (en) * | 2018-11-07 | 2020-05-15 | 爱信精机株式会社 | Valve timing control device |
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