CN201620926U - Valveless steering type air intake and exhaust device for four-stroke internal combustion engine - Google Patents
Valveless steering type air intake and exhaust device for four-stroke internal combustion engine Download PDFInfo
- Publication number
- CN201620926U CN201620926U CN2009200034661U CN200920003466U CN201620926U CN 201620926 U CN201620926 U CN 201620926U CN 2009200034661 U CN2009200034661 U CN 2009200034661U CN 200920003466 U CN200920003466 U CN 200920003466U CN 201620926 U CN201620926 U CN 201620926U
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- CN
- China
- Prior art keywords
- axle sleeve
- steering column
- column jacket
- exhaust
- 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
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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model relates to a valveless steering type air intake and exhaust device for a four-stroke internal combustion engine without an air intake valve and an exhaust valve. A shaft sleeve is transversely mounted on an air cylinder cover; an air port axially formed on the excircle of the shaft sleeve is communicated with the upper top part of an air cylinder; a rotatable steering shaft sleeve is arranged in the shaft sleeve; an air intake port and an exhaust port which are symmetrical along the radial direction are formed at the middle part of the steering shaft sleeve; when the steering shaft sleeve carries out regular rotation under the control of a cam shaft, the air intake port and the exhaust port are communicated with the air port on the shaft sleeve, so that the purposes of air intake and exhaust is achieved.
Description
Affiliated technical field:
The utility model relates to a kind of inlet and outlet device of four-stroke ic engine, the air inlet, exhaust that can make four-stroke ic engine not with the unlatching of intake valve, exhaust valve with and close inlet and outlet.
Background technique:
At present, the inlet and outlet of four-stroke ic engine structure is made up of valve, valve stem, air valve seat ring, valve spring, spring seat, valve guide bushing, spring locking plate.When motor needed air inlet or exhaust, the cam of camshaft promoted push rod, and push rod promotes rocker compression valve spring and opens intake valve or exhaust valve, thus air inlet or exhaust.But this inlet and outlet device of four-stroke ic engine exists when opening the inlet and outlet door, and compression inlet and outlet door spring wants loss of energy to reduce the thermal efficiency; The inlet and outlet door be shaped to circle, the limited location system between cylinder head and the cylinder upper end causes the size-constrained of inlet and outlet door, makes the shortcoming that air inlet is not enough and waste gas can not be arranged Wan, the reduction thermal efficiency; When work, rush mutually and hit between inlet and outlet door and air valve seat ring, easily gas leakage reduces the thermal efficiency; When opening and closing the inlet and outlet door, the knock that produces between inlet and outlet door and air valve seat ring is bigger, and noise is bigger when causing engine operation; When opening exhaust valve, the high temperature and high pressure gas that work done is born soon in the cylinder simultaneously produces pressure to exhaust valve by the cylinder mouth, and except that the external force of compression valve spring, also need overcome increases the power that waste gas produces on the valve, just can open exhaust valve, loss of energy; Valve spring produces vibration in the working procedure of compression and bounce-back, increased the shortcoming of the aspects such as vibration of motor.
Summary of the invention:
In order to improve the shortcoming that four-stroke ic engine utilizes the inlet and outlet of inlet and outlet door to exist, the utility model provides a kind of device of steering-type inlet and outlet, this device has been cancelled the labyrinth of inlet and outlet doors, adopt a kind of inlet and outlet mode of steering-type, reduce the energy of loss in the inlet and outlet process, improve the thermal efficiency of explosive motor.
The technological scheme that its technical problem that solves the utility model adopts is: laterally install an axle sleeve on cylinder head, load onto hollow and steering column jacket that intermediate portion is separated in the axle sleeve, an end is an inlet end in the steering column jacket, and the other end is an exhaust end.Cylindrical one side's direct-axis of axle sleeve communicates with top, cylinder top to having a breach, and this breach air inlet and exhaust are shared.The cylindrical radial symmetric direct-axis of steering column jacket is to respectively having a breach, and a breach is a suction port, and another breach is a relief opening.Steering column jacket can rotate in axle sleeve.When steering column jacket was rotating, the position of suction port went to breach on the axle sleeve and communicates, at this moment engine charge.The position of relief opening goes to breach on the axle sleeve and communicates, at this moment engine exhaust.Reach the inlet and outlet purpose of steering-type inlet and outlet device like this.
The beneficial effects of the utility model are that the energy of inlet and outlet process institute loss with comparing of use inlet and outlet door, can be saved 80% energy, and is simple in structure.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified.
Fig. 1 is a drawing in side sectional elevation of the present utility model
Fig. 2 is a sectional arrangement drawing of the present utility model
Fig. 3 is an axle sleeve drawing in side sectional elevation of the present utility model
Fig. 4 is a steering column jacket drawing in side sectional elevation of the present utility model
Fig. 5 is an axle sleeve sectional arrangement drawing of the present utility model
Fig. 6 is a steering column jacket sectional arrangement drawing of the present utility model
Among the figure 1, axle sleeve; 2, steering column jacket; 3, suction port; 4, relief opening; 5, gas port; 6, seal ring set; 7, separation layer.
Embodiment
Steering column jacket in Fig. 1 (2) rotates in axle sleeve (1), communicates when the suction port (3) on the steering column jacket (2) goes to gas port (5) on the axle sleeve (2), at this moment engine charge.When going to gas port (5) on the axle sleeve (2), the relief opening (4) on the steering column jacket (2) communicates, at this moment engine exhaust.Thereby reach the purpose of steering-type inlet and outlet device inlet and outlet.
[0014] in embodiment illustrated in fig. 2, the interior of steering column jacket (2) is hollow, but the interior intermediate portion of steering column jacket separates with the interior hollow left and right two ends of separation layer (7) with steering column jacket, between suction port (3) and the relief opening (4) is not connected, steering column jacket (2) is subjected to the control of camshaft to do running clocklike in axle sleeve (1), thereby make suction port (3) and gas port (5) when communicating, just locating the air inlet state in the cylinder; Relief opening (4) and gas port (5) are when communicating, and the high temperature and high pressure gas work done is born in the cylinder, is just locating exhaust condition.
Claims (2)
1. a four-stroke ic engine does not have valve steering-type inlet and outlet device, on cylinder head, form by axle sleeve (1), steering column jacket (2) two big members, one gas port (5) is arranged on the axle sleeve (1), radial symmetric and a not connected suction port (3) and a relief opening (4) are arranged on the steering column jacket (2), it is characterized in that: steering column jacket (2) rotates in axle sleeve (1), and the suction port (3) on the steering column jacket (2), relief opening (4) communicate and inlet and outlet with gas port (5) on the axle sleeve (1).
2. four-stroke ic engine according to claim 1 does not have the valve steering-type and advances, venting gas appliance, it is characterized in that: on cylinder head, laterally install an axle sleeve (1), load onto hollow and steering column jacket (2) that intermediate portion is separated in the axle sleeve (1), an end is an inlet end in the steering column jacket (2), the other end is an exhaust end, cylindrical one side's direct-axis of axle sleeve (1) communicates with top, cylinder top to having a breach, this breach air inlet and exhaust are shared, the cylindrical radial symmetric direct-axis of steering column jacket (2) is to respectively having a breach, one is suction port (3), another is relief opening (4), steering column jacket (2) rotates in axle sleeve (1), make the suction port (3) on the steering column jacket (2), relief opening (4) communicates with gas port (5) on the axle sleeve (1) regularly and realizes into, exhaust.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200034661U CN201620926U (en) | 2009-02-14 | 2009-02-14 | Valveless steering type air intake and exhaust device for four-stroke internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200034661U CN201620926U (en) | 2009-02-14 | 2009-02-14 | Valveless steering type air intake and exhaust device for four-stroke internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201620926U true CN201620926U (en) | 2010-11-03 |
Family
ID=43024383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200034661U Expired - Fee Related CN201620926U (en) | 2009-02-14 | 2009-02-14 | Valveless steering type air intake and exhaust device for four-stroke internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201620926U (en) |
-
2009
- 2009-02-14 CN CN2009200034661U patent/CN201620926U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101103 Termination date: 20120214 |