CN102966395B - Single-valve height pneumatic control system - Google Patents
Single-valve height pneumatic control system Download PDFInfo
- Publication number
- CN102966395B CN102966395B CN201210438994.6A CN201210438994A CN102966395B CN 102966395 B CN102966395 B CN 102966395B CN 201210438994 A CN201210438994 A CN 201210438994A CN 102966395 B CN102966395 B CN 102966395B
- Authority
- CN
- China
- Prior art keywords
- pipe
- end surface
- intake valve
- moving block
- air inlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Valve-Gear Or Valve Arrangements (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
A single-valve height pneumatic control system in the technical field of mechanical design comprises an air inlet channel, an exhaust channel, an air inlet valve lower section, an exhaust valve, an air inlet valve upper section, a volume cavity, a movable body, a penetrating pipe, a movable block, a connecting pipe and a spring, wherein the movable body is installed inside the volume cavity and contacted with the inner wall of the volume cavity in a sealing way, the penetrating pipe penetrates the upper wall and the lower wall of the movable body, the movable block is installed inside the penetrating pipe and contacted with the inner wall of the penetrating pipe in a sealing way, the lower end surface of the movable block is a plane, the upper end surface of the movable block is an inclined surface, two ends of the connecting pipe are respectively communicated with an air inlet pipe and the left wall of the volume cavity, and the left wall of the movable block is connected with the left wall of the volume cavity through a spring. When the pressure inside an engine exhaust pipe is large, the movable body moves leftwards, and the lift range of the air inlet valve is increased; and when the pressure inside the engine exhaust pipe is small, the movable body moves leftwards, and the lift range of the air inlet valve is reduced. The single-valve height pneumatic control system is reasonable in design, simple in structure and applicable to the system with variable lift range of the engine air valve.
Description
Technical field
What the present invention relates to is the engine aspirating system in a kind of mechanical designing technique field, particularly a kind of single valve height atmospheric control.
Background technique
Traditional petrolic valve lift is fixing immutable, and namely the cam profile of camshaft only has one, 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 single valve height atmospheric control 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: comprise cylinder, piston, cylinder head, intake duct, air outlet flue, intake valve hypomere, exhaust valve, compressor air inlet machine pipe, gas compressor, engine air inlet tube, engine exhaust pipe, turbine, turbine steam outlet pipe, cavity volume, moving body, run through pipe, moving block, spring, connecting tube and intake valve epimere, 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, moving body is arranged in 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 arranged on to run through in pipe and with the internal face sealing that runs through pipe and contacts, the lower end surface of moving block is plane, the upper-end surface of moving block is inclined-plane, intake valve epimere passes the upper wall surface of cavity volume and stretches into and runs through in pipe, the lower end surface of intake valve epimere contacts with the sealing of the upper-end surface of moving block, intake valve hypomere passes the lower wall surface of cavity volume and stretches into and runs through in pipe, the upper-end surface of intake valve hypomere contacts with the sealing of the lower end surface of moving block, the left wall of moving body is connected with the left wall of cavity volume by spring, the two ends of connecting tube respectively with engine exhaust pipe, the left wall of cavity volume is connected, and the cross section of cavity volume is rectangular, runs through pipe for uniform section pipe.
In the present invention, moving body and moving block can move left and right in cavity volume, and moving block also can followed intake valve epimere in pipe and move up and down together with intake valve hypomere running through.In the time that engine exhaust overpressure is lower, moving body is moved to the left under the stretching action of spring, moving block is also moved to the left simultaneously, the upper-end surface relative sliding of the lower end surface of intake valve epimere and moving block, intake valve hypomere moves up under the effect of holddown spring, thereby intake valve lift is diminished.In the time that engine exhaust overpressure is higher, moving body moves right and extension spring, and moving block also moves right simultaneously, the upper-end surface relative sliding of the lower end surface of intake valve epimere and moving block, intake valve hypomere moves down under the effect of holddown spring, thereby makes intake 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.
Brief description of the drawings
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, 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, cavity volume, 15, moving body, 16, run through pipe, 17, moving block, 18, spring, 19, connecting tube, 20, intake valve epimere.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are elaborated, the present embodiment, taking 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 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, cavity volume 14, moving body 15, run through pipe 16, moving block 17, spring 18, connecting tube 19 and intake valve epimere 20, 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 7, moving body 15 is arranged in cavity volume 14 and with the internal face sealing of cavity volume 14 and contacts, run through two walls up and down that pipe 16 runs through moving body 15, moving block 17 is arranged on to run through in pipe 16 and with the internal face sealing that runs through pipe 16 and contacts, the lower end surface of moving block 17 is plane, the upper-end surface of moving block 17 is inclined-plane, intake valve epimere 20 passes the upper wall surface of cavity volume 14 and stretches into and runs through in pipe 16, the lower end surface of intake valve epimere 20 contacts with the upper-end surface sealing of moving block 17, intake valve hypomere 6 passes the lower wall surface of cavity volume 14 and stretches into and runs through in pipe 16, the upper-end surface of intake valve hypomere 6 contacts with the lower end surface sealing of moving block 17, the left wall of moving body 15 is connected with the left wall of cavity volume 14 by spring 18, the two ends of connecting tube 19 respectively with engine exhaust pipe 11, the left wall of cavity volume 14 is connected, and the cross section of cavity volume 14 is rectangular, described in run through pipe 16 for uniform section pipe.
In the present invention, moving body 15 and moving block 17 can move left and right in cavity volume 14, and moving block 17 also can followed intake valve epimere 20 in 16 and move up and down together with intake valve hypomere 6 running through pipe.When engine exhaust pipe 11 internal pressures are when lower, moving body 15 is moved to the left under the stretching action of spring 18, moving block 17 is also moved to the left simultaneously, the upper-end surface relative sliding of the lower end surface of intake valve epimere 20 and moving block 17, intake valve hypomere 6 moves up under the effect of holddown spring, thereby intake valve lift is diminished.When engine exhaust pipe 11 internal pressures are when higher, moving body 15 moves right and extension spring 18, moving block 17 also moves right simultaneously, the upper-end surface relative sliding of the lower end surface of intake valve epimere 20 and moving block 17, intake valve hypomere 6 moves down under the effect of holddown spring, thereby makes intake valve lift become large.
Claims (1)
1. a single valve height atmospheric control, comprise cylinder (1), piston (2), cylinder head (3), intake duct (4), air outlet flue (5), intake valve hypomere (6), exhaust valve (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 (7), characterized by further comprising cavity volume (14), moving body (15), run through pipe (16), moving block (17), spring (18), connecting tube (19) and intake valve epimere (20), moving body (15) is arranged in cavity volume (14) and with the internal face sealing of cavity volume (14) and contacts, run through two walls up and down that pipe (16) runs through moving body (15), moving block (17) is arranged on to run through in pipe (16) and with the internal face sealing that runs through pipe (16) and contacts, the lower end surface of moving block (17) is plane, the upper-end surface of moving block (17) is inclined-plane, intake valve epimere (20) passes the upper wall surface of cavity volume (14) and stretches into and runs through in pipe (16), the lower end surface of intake valve epimere (20) contacts with the upper-end surface sealing of moving block (17), intake valve hypomere (6) passes the lower wall surface of cavity volume (14) and stretches into and runs through in pipe (16), the upper-end surface of intake valve hypomere (6) contacts with the lower end surface sealing of moving block (17), the left wall of moving body (15) is connected with the left wall of cavity volume (14) by spring (18), the two ends of connecting tube (19) respectively with engine exhaust pipe (11), the left wall of cavity volume (14) is connected, the cross section of cavity volume (14) is rectangular, running through pipe (16) is uniform section pipe, moving body (15) and moving block (17) can move left and right in cavity volume (14), and moving block (17) also can followed intake valve epimere (20) in pipe (16) and intake valve hypomere (6) moves up and down together running through, when moving body (15) is moved to the left under the stretching action of spring (18), moving block (17) is also moved to the left simultaneously, the upper-end surface relative sliding of the lower end surface of intake valve epimere (20) and moving block (17), intake valve hypomere (6) moves up under the effect of holddown spring, when moving body (15) moves right and when extension spring (18), moving block (17) also moves right simultaneously, the upper-end surface relative sliding of the lower end surface of intake valve epimere (20) and moving block (17), intake valve hypomere (6) moves down under the effect of holddown spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210438994.6A CN102966395B (en) | 2012-11-06 | 2012-11-06 | Single-valve height pneumatic control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210438994.6A CN102966395B (en) | 2012-11-06 | 2012-11-06 | Single-valve height pneumatic control system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102966395A CN102966395A (en) | 2013-03-13 |
| CN102966395B true CN102966395B (en) | 2014-10-15 |
Family
ID=47796791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210438994.6A Expired - Fee Related CN102966395B (en) | 2012-11-06 | 2012-11-06 | Single-valve height pneumatic control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102966395B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103233792A (en) * | 2013-04-07 | 2013-08-07 | 上海交通大学 | Sliding-type valve lift adjusting device |
| CN103277164A (en) * | 2013-05-09 | 2013-09-04 | 上海交通大学 | Push-pull valve height variable system |
| CN105019963A (en) * | 2015-06-08 | 2015-11-04 | 上海交通大学 | Air inlet valve device with ribs |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60228715A (en) * | 1984-04-27 | 1985-11-14 | Suzuki Motor Co Ltd | Variable device of valve lift in four-cycle engine |
| FR2821387B1 (en) * | 2001-02-28 | 2003-05-02 | Inst Francais Du Petrole | DEVICE FOR INTRODUCING A FUEL MIXTURE INTO A COMBUSTION CHAMBER OF AN INTERNAL COMBUSTION ENGINE, IN PARTICULAR OF A TWO-STROKE ENGINE |
| DE10357083A1 (en) * | 2003-12-06 | 2005-06-30 | Ina-Schaeffler Kg | Variable valve drive for external ignition combustion engine has lift function adjustment auxiliary cam on secondary camshaft rotating at primary camshaft revolution rate, actuating element pivot point guided on auxiliary cam |
| JP2005171922A (en) * | 2003-12-12 | 2005-06-30 | Nippon Piston Ring Co Ltd | Variable valve mechanism |
| CN101225759B (en) * | 2008-01-25 | 2010-06-09 | 许小法 | Variable spiracula lifting device |
| CN101429882B (en) * | 2008-12-12 | 2011-07-13 | 奇瑞汽车股份有限公司 | Continuous variable air valve lift apparatus |
-
2012
- 2012-11-06 CN CN201210438994.6A patent/CN102966395B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN102966395A (en) | 2013-03-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102966403B (en) | Device for adjusting lift of intake valve of supercharged engine | |
| CN102926833A (en) | Mechanical type lever proportion regulating mechanism | |
| CN102808671B (en) | Air intake valve lift-variable system in air intake pressure regulating type | |
| CN102966399B (en) | Tappet rod device with transverse moving type moving body | |
| CN102926834B (en) | Mechanical type valve stroke continuously-variable device | |
| CN102926835B (en) | Two-valve stroke synchronously-variable device | |
| CN102966400B (en) | System for adjusting height of moving block type tappet rod | |
| CN103233791A (en) | Differential pressure type valve lift control system | |
| CN102966395B (en) | Single-valve height pneumatic control system | |
| CN102979593B (en) | Left-and-right moving device of mobile rod | |
| CN103277164A (en) | Push-pull valve height variable system | |
| CN103291404A (en) | Adjustable tension mechanism with stepper motor | |
| CN102808670A (en) | Air intake/exhaust valve lift-variable system in air intake pressure regulating type | |
| CN102966394B (en) | Dual moving block synchronous movement type mechanical system for valve lift modulation of engine | |
| CN102966397B (en) | Pressure differential contact point moving system for adjusting engine valve lift | |
| CN102966402B (en) | System for synchronously adjusting lifts of intake valve and exhaust valve of supercharged engine | |
| CN102966396B (en) | Dual valve height pneumatic control system | |
| CN102953777A (en) | Inlet pressure control type camshaft device | |
| CN202991165U (en) | Tappet height mechanical regulation device | |
| CN102966401B (en) | Dual spring synchronous compression type mechanical system | |
| CN103233794A (en) | Valve adjusting mechanism with groove structure | |
| CN102953779A (en) | Lever regulation type lift variable system | |
| CN102996197B (en) | Up-down moving device of movable rod | |
| CN102966393B (en) | Upper-section sliding device for mechanical valve | |
| CN102966405B (en) | Stretching valve lift variable device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141015 Termination date: 20171106 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |