CN102979592B - Adjustment device for separation distance of upper segment of air door and lower segment of air door - Google Patents
Adjustment device for separation distance of upper segment of air door and lower segment of air door Download PDFInfo
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- CN102979592B CN102979592B CN201210440061.0A CN201210440061A CN102979592B CN 102979592 B CN102979592 B CN 102979592B CN 201210440061 A CN201210440061 A CN 201210440061A CN 102979592 B CN102979592 B CN 102979592B
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Abstract
The invention belongs to the technical field of mechanical design and relates to an adjustment device for separation distance of an upper segment of an air door and a lower segment of the air door. The adjustment device for the separation distance of the upper segment of the air door and the lower segment of the air door comprises an air inlet, an air outlet, a lower segment of an intake valve, an exhaust valve, an upper segment of the intake valve, a volume cavity, a moving body, a through pipe, a movable block, a connection pipe and a spring. Each of the lower end surface of the first movable block and the lower end surface of the second movable block is a plane surface. Each of the upper end surface of the first movable block and the upper end surface of the second movable block is an angular surface. The right wall surface of the first moving body is connected with a left wall surface of the second moving body through the spring. When pressure in an air inlet pipe of an engine is big, the first moving body moves to the left, the second moving body moves to the right and air inlet, and an exhaust valve lift is bigger. When pressure in an air inlet pipe of an engine is small, the first moving body moves to the right, the second moving body moves to the left and air inlet and the exhaust valve lift is smaller. The adjustment device for the separation distance of the upper segment of the air door and the lower segment of the air door is reasonable in design and simple in structure and is applicable to an engine air door lift variable system.
Description
Technical field
What the present invention relates to is the engine intake and exhaust system in a kind of mechanical designing technique field, particularly a kind of valve upper-lower section spacing adjusting device.
Background technique
Traditional petrolic valve lift is fixing immutable, and namely the cam profile of camshaft only has 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 design of cam contour line is that the balance under full operating mode is selected to motor, consequently motor both can not get best high speed efficiency, also can not get best low speed torque, but obtained best balanced performance under full operating mode.The employing of lift range variable, makes motor can be met the valve lift of demand in high velocity and low velocity zone, thereby improves high engine speeds power and low speed torque.
Through the retrieval of prior art document is found, 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 preferably the high and low rotating speed operating mode of motor.But its design is the hydraulic mechanism utilizing, and very high to sealing requirements, poorly sealed words easily cause fluid seepage; And because liquid exists certain compressibility, 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, a kind of valve upper-lower section spacing adjusting device is provided, the speed of response that can make valve lift change is very fast.
The present invention is achieved through the following technical solutions, the present invention includes: cylinder, piston, cylinder head, intake duct, air outlet flue, intake valve hypomere, exhaust valve hypomere, compressor air inlet machine pipe, gas compressor, engine air inlet tube, engine exhaust pipe, turbine, turbine steam outlet pipe, intake valve epimere, exhaust valve epimere, cavity volume, the first moving body, first runs through pipe, the first moving block, the second moving body, second runs through pipe, the second moving block, spring and connecting tube, piston is arranged in the space that cylinder surrounds and with the internal face sealing of cylinder and contacts, the air outlet of intake duct, the suction port of air outlet flue is all connected with cylinder head, the air inlet/outlet of gas compressor respectively with the air outlet of gas compressor machine suction tude, the suction port of engine air inlet tube is connected, and the air outlet of engine air inlet tube is connected with the suction port of intake duct, the air inlet/outlet of turbine respectively with the air outlet of engine exhaust pipe, the suction port of turbine steam outlet pipe is connected, and the suction port of engine exhaust pipe is connected with the air outlet of air outlet flue, the lower end surface of intake valve hypomere, in the Jun firing chamber, lower end surface of exhaust valve hypomere, the first moving body, the second moving body is installed in cavity volume and with the internal face sealing of cavity volume and contacts, and first runs through pipe, second runs through pipe passes through respectively the first moving body, two walls up and down of the second moving body, the first moving block is arranged on first to be run through in pipe and with the first internal face sealing that runs through pipe and contacts, the second moving block is arranged on second to be run through in pipe and with the second internal face sealing that runs through pipe and contacts, the lower end surface of the first moving block, the lower end surface of the second moving block is plane, the upper-end surface of the first moving block, the upper-end surface of the second moving block is inclined-plane, intake valve epimere passes the upper wall surface of cavity volume and stretches into first and runs through in pipe, the lower end surface of intake valve epimere contacts with the upper-end surface sealing of the first moving block, intake valve hypomere passes the lower wall surface of cavity volume and stretches into first and runs through in pipe, the upper-end surface of intake valve hypomere contacts with the lower end surface sealing of the first moving block, exhaust valve epimere passes the upper wall surface of cavity volume and stretches into second and runs through in pipe, the lower end surface of exhaust valve epimere contacts with the upper-end surface sealing of the second moving block, exhaust valve hypomere passes the lower wall surface of cavity volume and stretches into second and runs through in pipe, the upper-end surface of exhaust valve hypomere contacts with the lower end surface sealing of the second moving block, the cross section of cavity volume is rectangular, first runs through pipe, second runs through pipe is uniform section pipe, and the right wall of the first moving body is connected with the left wall of the second moving body by spring, the two ends of connecting tube respectively with engine air inlet tube, the upper wall surface of cavity volume is connected.
In the present invention, the first moving body, the second moving body, the first moving block and the second moving block all can move left and right in cavity volume, and the first moving block, the second moving block also can followed inlet and exhaust valve upper-lower section and moved up and down together within running through pipe.When engine charge overpressure is lower, under the stretching action of spring, the first moving body moves right, the second moving body is moved to the left, the first moving block, the second moving block also move simultaneously, the upper-end surface relative sliding of the lower end surface of intake valve epimere and the first moving block, intake valve hypomere moves up under the effect of holddown spring, the upper-end surface relative sliding of the lower end surface of exhaust valve epimere and the second moving block, exhaust valve hypomere moves up under the effect of holddown spring, thereby inlet and exhaust valve lift is diminished.When engine charge overpressure is higher, the first moving body is moved to the left, the second moving body moves right, spring is stretched, the first moving block, the second moving block also move simultaneously, the upper-end surface relative sliding of the lower end surface of intake valve epimere and the first moving block, intake valve hypomere moves down under the effect of holddown spring, the upper-end surface relative sliding of the lower end surface of exhaust valve epimere and the second moving block, exhaust valve hypomere moves down under the effect of holddown spring, thereby makes inlet and exhaust valve lift become large.
Compared with prior art, the present invention has following beneficial effect and is: the present invention is reasonable in design, simple in structure, can realize the continuous variable of valve lift, and the speed of response that can make again valve lift change is very fast, and does not need special control mechanism.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of A-A section in Fig. 1;
Wherein: 1, cylinder, 2, piston, 3, cylinder head, 4, intake duct, 5, air outlet flue, 6, intake valve hypomere, 7, exhaust valve hypomere, 8, compressor air inlet machine pipe, 9, gas compressor, 10, engine air inlet tube, 11, engine exhaust pipe, 12, turbine, 13, turbine steam outlet pipe, 14, intake valve epimere, 15, exhaust valve epimere, 16, cavity volume, 17, the first moving body, 18, first runs through pipe, the 19, first moving block, the 20, second moving body, 21, second runs through pipe, 22, the second moving block, 23, spring, 24, connecting tube.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are elaborated, the present embodiment be take technical solution of the present invention as prerequisite, 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, piston 2, cylinder head 3, intake duct 4, air outlet flue 5, intake valve hypomere 6, exhaust valve hypomere 7, compressor air inlet machine pipe 8, gas compressor 9, engine air inlet tube 10, engine exhaust pipe 11, turbine 12, turbine steam outlet pipe 13, intake valve epimere 14, exhaust valve epimere 15, cavity volume 16, the first moving body 17, first runs through pipe 18, the first moving block 19, the second moving body 20, second runs through pipe 21, the second moving block 22, spring 23 and connecting tube 24, piston 2 is arranged in the space that cylinder 1 surrounds and with the internal face sealing of cylinder 1 and contacts, the air outlet of intake duct 4, the suction port of air outlet flue 5 is all connected with cylinder head 3, the air inlet/outlet of gas compressor 9 respectively with the air outlet of gas compressor machine suction tude 8, the suction port of engine air inlet tube 10 is connected, and the air outlet of engine air inlet tube 10 is connected with the suction port of intake duct 4, the air inlet/outlet of turbine 12 respectively with the air outlet of engine exhaust pipe 11, the suction port of turbine steam outlet pipe 13 is connected, and the suction port of engine exhaust pipe 11 is connected with the air outlet of air outlet flue 5, the lower end surface of intake valve hypomere 6, in the Jun firing chamber, lower end surface of exhaust valve hypomere 7, the first moving body 17, the second moving body 20 is installed in cavity volume 16 and with the internal face sealing of cavity volume 16 and contacts, and first runs through pipe 18, second runs through pipe 21 passes through respectively the first moving body 17, two walls up and down of the second moving body 20, the first moving block 19 is arranged on first to be run through in pipe 18 and runs through the sealing of pipe 18 internal face and contact with first, the second moving block 22 is arranged on second to be run through in pipe 21 and runs through the sealing of pipe 21 internal face and contact with second, the lower end surface of the first moving block 19, the lower end surface of the second moving block 22 is plane, the upper-end surface of the first moving block 19, the upper-end surface of the second moving block 22 is inclined-plane, intake valve epimere 14 passes the upper wall surface of cavity volume 16 and stretches into first and runs through in pipe 18, the lower end surface of intake valve epimere 14 contacts with the upper-end surface sealing of the first moving block 19, intake valve hypomere 6 passes the lower wall surface of cavity volume 16 and stretches into first and runs through in pipe 18, the upper-end surface of intake valve hypomere 6 contacts with the lower end surface sealing of the first moving block 19, exhaust valve epimere 15 passes the upper wall surface of cavity volume 16 and stretches into second and runs through in pipe 21, the lower end surface of exhaust valve epimere 15 contacts with the upper-end surface sealing of the second moving block 22, exhaust valve hypomere 7 passes the lower wall surface of cavity volume 16 and stretches into second and runs through in pipe 21, the upper-end surface of exhaust valve hypomere 7 contacts with the lower end surface sealing of the second moving block 22, the cross section of cavity volume 16 is rectangular, first runs through pipe 18, second runs through pipe 21 is uniform section pipe, and the right wall of the first moving body 17 is connected with the left wall of the second moving body 20 by spring 23, the two ends of connecting tube 24 respectively with engine air inlet tube 10, the upper wall surface of cavity volume 16 is connected.
In the present invention, the first moving body 17, the second moving body 20, the first moving block 19 and the second moving block 22 all can move left and right in cavity volume 16, and the first moving block 19, the second moving block 22 also can followed inlet and exhaust valve upper-lower section and moved up and down together within running through pipe.When engine air inlet tube 10 internal pressures are when lower, under the stretching action of spring 23, the first moving body 17 moves right, the second moving body 20 is moved to the left, the first moving block 19, the second moving block 22 also move simultaneously, the upper-end surface relative sliding of the lower end surface of intake valve epimere 14 and the first moving block 19, intake valve hypomere 6 moves up under the effect of holddown spring, the upper-end surface relative sliding of the lower end surface of exhaust valve epimere 15 and the second moving block 22, exhaust valve hypomere 7 moves up under the effect of holddown spring, thereby inlet and exhaust valve lift is diminished.When engine air inlet tube 10 internal pressures are when higher, the first moving body 17 is moved to the left, the second moving body 20 moves right, spring 23 is stretched, the first moving block 19, the second moving block 22 also move simultaneously, the upper-end surface relative sliding of the lower end surface of intake valve epimere 14 and the first moving block 19, intake valve hypomere 6 moves down under the effect of holddown spring, the upper-end surface relative sliding of the lower end surface of exhaust valve epimere 15 and the second moving block 22, exhaust valve hypomere 7 moves down under the effect of holddown spring, thereby makes inlet and exhaust valve lift become large.Therefore, the present invention can take into account the high and low rotating speed operating mode of motor preferably.
Claims (1)
1. a valve upper-lower section spacing adjusting device, comprise cylinder (1), piston (2), cylinder head (3), intake duct (4), air outlet flue (5), intake valve hypomere (6), exhaust valve hypomere (7), compressor air inlet machine pipe (8), gas compressor (9), engine air inlet tube (10), engine exhaust pipe (11), turbine (12) and turbine steam outlet pipe (13), piston (2) is arranged in the space that cylinder (1) surrounds and with the internal face sealing of cylinder (1) and contacts, the air outlet of intake duct (4), the suction port of air outlet flue (5) is all connected with cylinder head (3), the air inlet/outlet of gas compressor (9) respectively with the air outlet of gas compressor machine suction tude (8), the suction port of engine air inlet tube (10) is connected, the air outlet of engine air inlet tube (10) is connected with the suction port of intake duct (4), the air inlet/outlet of turbine (12) respectively with the air outlet of engine exhaust pipe (11), the suction port of turbine steam outlet pipe (13) is connected, the suction port of engine exhaust pipe (11) is connected with the air outlet of air outlet flue (5), the lower end surface of intake valve hypomere (6), in the Jun firing chamber, lower end surface of exhaust valve hypomere (7), characterized by further comprising intake valve epimere (14), exhaust valve epimere (15), cavity volume (16), the first moving body (17), first runs through pipe (18), the first moving block (19), the second moving body (20), second runs through pipe (21), the second moving block (22), spring (23) and connecting tube (24), the first moving body (17), the second moving body (20) is installed in cavity volume (16) and with the internal face sealing of cavity volume (16) and contacts, first runs through pipe (18), second runs through pipe (21) passes through respectively the first moving body (17), two walls up and down of the second moving body (20), the first moving block (19) is arranged on first to be run through in pipe (18) and with the first internal face that runs through pipe (18) and seals and contact, the second moving block (22) is arranged on second to be run through in pipe (21) and with the second internal face that runs through pipe (21) and seals and contact, the lower end surface of the first moving block (19), the lower end surface of the second moving block (22) is plane, the upper-end surface of the first moving block (19), the upper-end surface of the second moving block (22) is inclined-plane, intake valve epimere (14) passes the upper wall surface of cavity volume (16) and stretches into first and runs through in pipe (18), the lower end surface of intake valve epimere (14) contacts with the upper-end surface sealing of the first moving block (19), intake valve hypomere (6) passes the lower wall surface of cavity volume (16) and stretches into first and runs through in pipe (18), the upper-end surface of intake valve hypomere (6) contacts with the lower end surface sealing of the first moving block (19), exhaust valve epimere (15) passes the upper wall surface of cavity volume (16) and stretches into second and runs through in pipe (21), the lower end surface of exhaust valve epimere (15) contacts with the upper-end surface sealing of the second moving block (22), exhaust valve hypomere (7) passes the lower wall surface of cavity volume (16) and stretches into second and runs through in pipe (21), the upper-end surface of exhaust valve hypomere (7) contacts with the lower end surface sealing of the second moving block (22), the cross section of cavity volume (16) is rectangular, first runs through pipe (18), second runs through pipe (21) is uniform section pipe, the right wall of the first moving body (17) is connected with the left wall of the second moving body (20) by spring (23), the two ends of connecting tube (24) respectively with engine air inlet tube (10), the upper wall surface of cavity volume (16) is connected, inlet and exhaust valve can self-control under the effect of spring (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210440061.0A CN102979592B (en) | 2012-11-06 | 2012-11-06 | Adjustment device for separation distance of upper segment of air door and lower segment of air door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210440061.0A CN102979592B (en) | 2012-11-06 | 2012-11-06 | Adjustment device for separation distance of upper segment of air door and lower segment of air door |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102979592A CN102979592A (en) | 2013-03-20 |
| CN102979592B true CN102979592B (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210440061.0A Expired - Fee Related CN102979592B (en) | 2012-11-06 | 2012-11-06 | Adjustment device for separation distance of upper segment of air door and lower segment of air door |
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| Country | Link |
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| CN (1) | CN102979592B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0471614A1 (en) * | 1990-08-17 | 1992-02-19 | Regie Nationale Des Usines Renault S.A. | Valve actuating device, particularly in an internal combustion engine |
| CN102588077A (en) * | 2012-03-27 | 2012-07-18 | 上海交通大学 | Engine intake system with variable-volume intake pipe |
| CN102588076A (en) * | 2012-03-27 | 2012-07-18 | 上海交通大学 | Volume cavity regulating intake device |
| CN102606279A (en) * | 2012-03-27 | 2012-07-25 | 上海交通大学 | Air inlet system with movable component in air inlet tube |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20109597U1 (en) * | 2001-06-08 | 2001-09-27 | Trw Deutschland Gmbh | Device for actuating a gas exchange valve of an internal combustion engine |
-
2012
- 2012-11-06 CN CN201210440061.0A patent/CN102979592B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0471614A1 (en) * | 1990-08-17 | 1992-02-19 | Regie Nationale Des Usines Renault S.A. | Valve actuating device, particularly in an internal combustion engine |
| CN102588077A (en) * | 2012-03-27 | 2012-07-18 | 上海交通大学 | Engine intake system with variable-volume intake pipe |
| CN102588076A (en) * | 2012-03-27 | 2012-07-18 | 上海交通大学 | Volume cavity regulating intake device |
| CN102606279A (en) * | 2012-03-27 | 2012-07-25 | 上海交通大学 | Air inlet system with movable component in air inlet tube |
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| CN102979592A (en) | 2013-03-20 |
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Granted publication date: 20141210 Termination date: 20171106 |