CN103334806A - Electric height adjustment device of tappet - Google Patents
Electric height adjustment device of tappet Download PDFInfo
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- CN103334806A CN103334806A CN2013101704854A CN201310170485A CN103334806A CN 103334806 A CN103334806 A CN 103334806A CN 2013101704854 A CN2013101704854 A CN 2013101704854A CN 201310170485 A CN201310170485 A CN 201310170485A CN 103334806 A CN103334806 A CN 103334806A
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- tappet
- pipe
- cavity volume
- moving block
- air outlet
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Abstract
The invention belongs to the technical field of machine design, and relates to an electric height adjustment device of a tappet. The device comprises an air cylinder, an air inlet tube, an air inlet valve, an air exhaust valve, an air exhaust tube, a strut, a lever, a tappet, a volume cavity, a movable body, a penetration tube, a movable block, a push-pull rod, a spring and a step motor, wherein the movable body is mounted in the volume cavity and contacted with an inner wall face of the volume cavity in a sealing manner; the penetration tube penetrates an upper wall face and an lower wall face of the movable body; the movable block is mounted in the penetration tube and contacted with an inner wall face of the penetration tube in a sealing manner; the lower end face of the movable block is a plane; and the upper end face of the movable block is oblique; and a right wall face of the movable body is connected with a right wall face of the volume cavity by the spring. When the push-pull rod moves rightwards, the movable body moves rightwards, and the lift of the air inlet valve is increased; and when the push-pull rod moves leftwards, the movable body moves leftwards, and the lift of the air inlet valve is decreased. The device is reasonable in design, and simple in structure, and is applicable to an engine valve lift variable system.
Description
Technical field
What the present invention relates to is the engine aspirating system in a kind of mechanical designing technique field, particularly the electronic controlling device of a kind of tappet height.
Background technique
Traditional petrolic valve lift is fixing immutable, and just the cam profile of camshaft has only a kind ofly, and this has just caused this lift can not make motor all obtain good response in high velocity and low velocity zone.The valve lift of conventional gasoline machine motor is that the cam profile design is that the balance of motor under full operating mode selected, consequently motor both can not get best high speed efficient, also can not get best low speed torque, but obtained best balanced performance under the full operating mode.The employing of lift range variable makes motor can both be met the valve lift of demand in high velocity and low velocity zone, thereby improves high engine speeds power and low speed torque.
Find through the retrieval to the prior art document, China Patent No. application number 200910190522.1, patent name: a kind of hydraulic valve mechanism of lift range variable, this patented technology provides a kind of device of variable valve lift, can take into account the high and low rotating speed operating mode of motor preferably.But its design is the hydraulic mechanism that utilizes, and very high to sealing requirements, poorly sealed words cause fluid seepage easily; And because there is certain compressibility in liquid, the speed of response that valve lift changes has certain retardance.
Summary of the invention
The present invention is directed to above-mentioned the deficiencies in the prior art, provide a kind of tappet height electronic controlling device, the speed of response that valve lift is changed is very fast.
The present invention is achieved through the following technical solutions, the present invention includes: cylinder, cylinder head, suction tude, intake duct, intake valve, exhaust valve, air outlet flue, outlet pipe, pillar, lever, the tappet epimere, the tappet hypomere, cavity volume, moving body, run through pipe, moving block, spring, pull bar and step are decided motor, the air outlet of intake duct, the suction port of air outlet flue is arranged on the cylinder head, the air outlet of suction tude is connected with the suction port of intake duct, the suction port of outlet pipe is connected with the air outlet of air outlet flue, the upper end of intake valve is connected with an end of lever, pillar is arranged in the neutral position of lever, moving body is installed in the cavity volume and with the internal face sealing of cavity volume and contacts, run through two walls up and down that pipe runs through moving body, moving block is installed in to run through in the pipe and with the internal face sealing that runs through pipe and contacts, the lower end surface of moving block is the plane, the upper-end surface of moving block is the inclined-plane, the upper end of tappet epimere is connected with the other end of lever, the lower end of tappet epimere is passed the upper wall surface of cavity volume and is stretched into and runs through in the pipe, the lower end surface of tappet epimere contacts with the sealing of the upper-end surface of moving block, the upper end of tappet hypomere is passed the lower wall surface of cavity volume and is stretched into and runs through in the pipe, the upper-end surface of tappet hypomere contacts with the sealing of the lower end surface of moving block, the cross section of cavity volume is rectangular, run through pipe and be the uniform section pipe, the right wall of moving body is connected with the right wall of cavity volume by spring, the left wall that one end of pull bar passes behind the left wall of cavity volume with moving body is fixedly linked, and the other end of pull bar is decided motor with the step and is meshed.
In the present invention, moving body and moving block can be in cavity volume move left and right, moving block also can follow the tappet epimere in running through pipe and the tappet hypomere moves up and down together.When pull bar was moved to the left, moving body was moved to the left, and then moving block also is moved to the left simultaneously, and the lower end surface of tappet epimere is relative with the upper-end surface of moving block slides, and the tappet epimere moves down, thereby the lift of intake valve is diminished.When pull bar moved right, moving body moved right, and moving block also moves right simultaneously, and the lower end surface of tappet epimere is relative with the upper-end surface of moving block slides, and the tappet epimere moves up, thereby made the lift of intake valve become big.Mounting spring in cavity volume can play certain buffer function to the movement of moving body.In different operating modes, can decide motor the intake valve lift is controlled by going on foot.
Compared with prior art, the present invention has following beneficial effect and is: the present invention is reasonable in design, and is simple in structure, can realize the continuous variable of valve lift, and the speed of response that valve lift is changed is very fast, and the control accuracy height.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of A-A section among Fig. 1;
Wherein: 1, cylinder, 2, cylinder head, 3, suction tude, 4, intake duct, 5, intake valve, 6, exhaust valve, 7, air outlet flue, 8, outlet pipe, 9, pillar, 10, lever, 11, the epimere of holding out, 12, the hypomere of holding out, 13, cavity volume, 14, moving body, 15, run through pipe, 16, moving block, 17, spring, 18, pull bar, 19, the step decides motor.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated, present embodiment is prerequisite with the technical solution of the present invention, provided detailed mode of execution and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Embodiment
As depicted in figs. 1 and 2, the present invention includes: comprise cylinder 1, cylinder head 2, suction tude 3, intake duct 4, intake valve 5, exhaust valve 6, air outlet flue 7, outlet pipe 8, pillar 9, lever 10, tappet epimere 11, tappet hypomere 12, cavity volume 13, moving body 14, run through pipe 15, moving block 16, spring 17, pull bar 18 and step are decided motor 19, the air outlet of intake duct 4, the suction port of air outlet flue 7 is arranged on the cylinder head 2, the air outlet of suction tude 3 is connected with the suction port of intake duct 4, the suction port of outlet pipe 8 is connected with the air outlet of air outlet flue 7, the upper end of intake valve 5 is connected with an end of lever 10, pillar 9 is arranged in the neutral position of lever 10, moving body 14 is installed in the cavity volume 13 and with the internal face sealing of cavity volume 13 and contacts, run through two walls up and down that pipe 15 runs through moving body 14, moving block 16 is installed in to run through in the pipe 15 and with the internal face sealing that runs through pipe 15 and contacts, the lower end surface of moving block 16 is the plane, the upper-end surface of moving block 16 is the inclined-plane, the upper end of tappet epimere 11 is connected with the other end of lever 10, the lower end of tappet epimere 11 is passed the upper wall surface of cavity volume 13 and is stretched into and runs through in the pipe 15, the lower end surface of tappet epimere 11 contacts with the upper-end surface sealing of moving block 16, the upper end of tappet hypomere 12 is passed the lower wall surface of cavity volume 13 and is stretched into and runs through in the pipe 15, the upper-end surface of tappet hypomere 12 contacts with the lower end surface sealing of moving block 16, the cross section of cavity volume 13 is rectangular, run through pipe 15 and be the uniform section pipe, the right wall of moving body 14 is connected with the right wall of volume 13 by spring 17, the left wall that one end of pull bar 18 passes behind the left wall of cavity volume 13 with moving body 14 is fixedly linked, and the other end of pull bar 18 is decided motor 19 with the step and is meshed.
In the present invention, moving body 14 and moving block 16 can be in cavity volume 13 move left and right, moving block 16 also can follow tappet epimere 11 in running through pipe 15 and tappet hypomere 12 moves up and down together.When pull bar 18 was moved to the left, moving body 14 was moved to the left, and then moving block 16 also is moved to the left simultaneously, and the lower end surface of tappet epimere 11 is relative with the upper-end surface of moving block 16 slides, and tappet epimere 11 moves down, thereby the lift of intake valve 5 is diminished.When pull bar 18 moved right, moving body 14 moved right, and moving block 16 also moves right simultaneously, and the lower end surface of tappet epimere 11 is relative with the upper-end surface of moving block 16 slides, and tappet epimere 11 moves up, thereby made the lift of intake valve 5 become big.Mounting spring 17 in cavity volume 13, can play certain buffer function to the movement of moving body 14.In different operating modes, can decide 19 pairs of intake valve lifts of motor and control by going on foot.
Claims (1)
1. electronic controlling device of tappet height, comprise cylinder (1), cylinder head (2), suction tude (3), intake duct (4), intake valve (5), exhaust valve (6), air outlet flue (7), outlet pipe (8), pillar (9) and lever (10), the air outlet of intake duct (4), the suction port of air outlet flue (7) is arranged on the cylinder head (2), the air outlet of suction tude (3) is connected with the suction port of intake duct (4), the suction port of outlet pipe (8) is connected with the air outlet of air outlet flue (7), the upper end of intake valve (5) is connected with an end of lever (10), pillar (9) is arranged in the neutral position of lever (10), it is characterized in that, also comprise tappet epimere (11), tappet hypomere (12), cavity volume (13), moving body (14), run through pipe (15), moving block (16), spring (17), pull bar (18) and step are decided motor (19), moving body (14) is installed in the cavity volume (13) and with the internal face sealing of cavity volume (13) and contacts, run through two walls up and down that pipe (15) runs through moving body (14), moving block (16) is installed in to run through in the pipe (15) and with the internal face sealing that runs through pipe (15) and contacts, the lower end surface of moving block (16) is the plane, the upper-end surface of moving block (16) is the inclined-plane, the upper end of tappet epimere (11) is connected with the other end of lever (10), the lower end of tappet epimere (11) is passed the upper wall surface of cavity volume (13) and is stretched into and runs through in the pipe (15), the lower end surface of tappet epimere (11) contacts with the upper-end surface sealing of moving block (16), the upper end of tappet hypomere (12) is passed the lower wall surface of cavity volume (13) and is stretched into and runs through in the pipe (15), the upper-end surface of tappet hypomere (12) contacts with the lower end surface sealing of moving block (16), the cross section of cavity volume (13) is rectangular, running through pipe (15) is the uniform section pipe, the right wall of moving body (14) is connected by the right wall of spring (17) with cavity volume (13), the left wall that one end of pull bar (18) passes behind the left wall of cavity volume (13) with moving body (14) is fixedly linked, and the other end of pull bar (18) is decided motor (19) with the step and is meshed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101704854A CN103334806A (en) | 2013-05-09 | 2013-05-09 | Electric height adjustment device of tappet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101704854A CN103334806A (en) | 2013-05-09 | 2013-05-09 | Electric height adjustment device of tappet |
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| Publication Number | Publication Date |
|---|---|
| CN103334806A true CN103334806A (en) | 2013-10-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101704854A Pending CN103334806A (en) | 2013-05-09 | 2013-05-09 | Electric height adjustment device of tappet |
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| CN (1) | CN103334806A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050350A (en) * | 2016-07-13 | 2016-10-26 | 孙志国 | Cushion block movable type valve height adjusting system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002256946A (en) * | 2001-03-05 | 2002-09-11 | Toyota Motor Corp | Control device of internal combustion engine |
| CN102926834A (en) * | 2012-10-12 | 2013-02-13 | 上海交通大学 | Mechanical type valve stroke continuously-variable device |
| CN102966400A (en) * | 2012-11-29 | 2013-03-13 | 上海交通大学 | System for adjusting height of moving block type tappet rod |
| CN102979593A (en) * | 2012-11-22 | 2013-03-20 | 上海交通大学 | Left-and-right moving device of mobile rod |
-
2013
- 2013-05-09 CN CN2013101704854A patent/CN103334806A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002256946A (en) * | 2001-03-05 | 2002-09-11 | Toyota Motor Corp | Control device of internal combustion engine |
| CN102926834A (en) * | 2012-10-12 | 2013-02-13 | 上海交通大学 | Mechanical type valve stroke continuously-variable device |
| CN102979593A (en) * | 2012-11-22 | 2013-03-20 | 上海交通大学 | Left-and-right moving device of mobile rod |
| CN102966400A (en) * | 2012-11-29 | 2013-03-13 | 上海交通大学 | System for adjusting height of moving block type tappet rod |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050350A (en) * | 2016-07-13 | 2016-10-26 | 孙志国 | Cushion block movable type valve height adjusting system |
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Application publication date: 20131002 |