CN201433823Y - VCR engine - Google Patents
VCR engine Download PDFInfo
- Publication number
- CN201433823Y CN201433823Y CN2009201029143U CN200920102914U CN201433823Y CN 201433823 Y CN201433823 Y CN 201433823Y CN 2009201029143 U CN2009201029143 U CN 2009201029143U CN 200920102914 U CN200920102914 U CN 200920102914U CN 201433823 Y CN201433823 Y CN 201433823Y
- Authority
- CN
- China
- Prior art keywords
- compression ratio
- piston
- relief piston
- cylinder block
- variable compression
- 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
The utility model discloses a VCR (variable compression ratio) engine, which comprises an air cylinder body, a piston, a sparking plug, a valve, a valve push rod, a camshaft and a cylinder cover. A pressure-regulating piston which adopts an U-shaped housing with an outward flange is sleeved inside the air cylinder body and arranged between the piston and the cylinder cover, the diameter of the outward flange of the pressure-regulating piston is equivalent to the external diameter of the air cylinder body, a return spring is arranged between the outward flange of the pressure-regulating pistonand the top of the air cylinder body, a combustion chamber of the engine is arranged at the bottom of the voltage-regulating piston, the sparking plug penetrates the air cylinder body and is insertedinto the combustion chamber obliquely, an air inlet is formed at the upper part of the combustion chamber obliquely, the valve push rod is arranged in a cavity of the U-shaped housing of the pressure-regulating piston, the camshaft is mounted on the voltage-regulating piston, the camshaft is arranged at the upper part of the valve push rod longitudinally, and a compression ratio adjusting eccentric shaft is arranged at the upper part of the cylinder cover. The utility model provides the VCR engine which can save fuels.
Description
Technical field
The utility model relates to a kind of motor, especially a kind of variable compression ratio engine.
Background technique
The compression ratio of present motor is all fixed basically, loads when big, and the air inflow of motor is big, compress at the end inflammable gas temperature height, pressure is big, detonation trend increases, and has limited the peak output of motor.Load hour, the air inflow of motor is little, and at the end the inflammable gas temperature is low, pressure is little compressing, and it is corresponding just little that the man-hour expansion ratio is done in igniting, and the thermal efficiency is low, oil consumption is high.The power of motor is big, and the acceleration of automobile and climbing property are all right, so motor has certain power and is very important; And the underload of automobile motor when cruising half, its underload 20% when automobile travels on the urban road; Therefore, design a kind of can the assurance and can guarantee again that because of automobile acceleration and of the requirement of climbing property automobile fuel-efficient variable compression ratio engine when cruising is the present technical issues that need to address the power of motor.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of can the assurance can guarantee automobile fuel-efficient variable compression ratio engine when cruising again because of automobile acceleration and the requirement of climbing property to the power of motor.
The technical scheme in the invention for solving the technical problem is:
A kind of variable compression ratio engine, by cylinder block, piston, spark plug, valve, valve tappet, camshaft and cylinder cap are formed, in cylinder block, be set with relief piston, relief piston is arranged between piston and the cylinder cap, described relief piston is " U " shell body that has outward flange, the diameter of the outward flange of relief piston is suitable with the external diameter of cylinder block, between the outward flange of relief piston and cylinder block top, be provided with return spring, the firing chamber of motor is arranged on the bottom of relief piston, described spark plug passes in the oblique reeve of the cylinder block firing chamber, the oblique suction port that is provided with on the top of firing chamber, described valve tappet is arranged in the chamber of relief piston " U " shell body, described camshaft is installed on the relief piston, camshaft vertically is arranged on the top of valve tappet, is provided with compression ratio on cylinder cap top and adjusts eccentric shaft.
The technical scheme in the invention for solving the technical problem can also be:
The size of the axle point far away of corresponding each cylinder cap of eccentric shaft described in the utility model equates, phase place is identical.
The cylinder wall of the utility model cylinder block is provided with the slotted hole with the size of spark plug and range of movement coupling.
The cylinder wall of the utility model cylinder block is provided with the slotted hole with the size of suction port and range of movement coupling.
The utility model motor body is provided with the Timing Belt regulating mechanism.
Timing Belt regulating mechanism described in the utility model is made of left expansion tightening wheel that is arranged on the Timing Belt left side and the right expansion tightening wheel that is arranged on the Timing Belt right side.
The beneficial effects of the utility model are:
Because alterable compression ratio, so the whole detonation trend of compression when big of can reducing to load cooperates supercharging technology can improve the peak output of motor, improve the fuel thermal efficiency of load hour, save fuel oil.
Working principle of the present utility model:
When its axle point far away of eccentric shaft 1 rotation moved down, the elastic force that cylinder cap 2 overcomes return spring 4 moved downward, and relief piston 3 is depressed, firing chamber (13) diminishes, it is big that compression ratio becomes, and simultaneously, the expansion tightening wheel of Timing Belt both sides inwardly compresses Timing Belt simultaneously automatically; When the axle point far away of eccentric shaft 1 moved up, cylinder cap 2 moved upward under the elastic force effect of return spring 4, and relief piston 3 presses and moves, it is big that firing chamber (13) becomes, and compression ratio diminishes, simultaneously, the expansion tightening wheel of Timing Belt both sides outwards moves simultaneously automatically, and Timing Belt sets back;
Description of drawings
Fig. 1 is a structural representation of the present utility model
Fig. 2 is the utility model Timing Belt automatic expansion tightening wheel scheme of installation
Embodiment
Shown in Fig. 1-2, a kind of variable compression ratio engine, by cylinder block 11, piston 10, spark plug 9, valve 8, valve tappet 7, camshaft 6 and cylinder cap 2 are formed, in cylinder block 11, be set with relief piston 3, relief piston 3 is arranged between piston 10 and the cylinder cap 2, described relief piston 3 is for having " U " shell body of outward flange, the external diameter of the diameter of the outward flange of relief piston 3 and cylinder block 11 is suitable, between the outward flange of relief piston 3 and cylinder block 11 tops, be provided with return spring 4, the firing chamber 13 of motor is arranged on the bottom of relief piston 3, described spark plug 9 passes in the cylinder block 11 oblique reeve firing chambers 13, the oblique suction port 12 that is provided with in 13 top in the firing chamber, described valve tappet 7 is arranged in the chamber of " U " shell body of relief piston 3, described camshaft 6 is installed on the relief piston 3, camshaft 6 vertically is arranged on the top of valve tappet 7, is provided with compression ratio on cylinder cap 2 tops and adjusts eccentric shaft 1.The size of the axle point far away of described eccentric shaft 1 corresponding each cylinder cap 2 equates, phase place is identical.The cylinder wall of cylinder block 11 is provided with the slotted hole 5 with the size of spark plug 9 and range of movement coupling.The cylinder wall of cylinder block 11 is provided with the slotted hole 14 with the size of suction port 12 and range of movement coupling.Motor body is provided with the Timing Belt regulating mechanism.Described Timing Belt regulating mechanism is made of left expansion tightening wheel 16 that is arranged on the Timing Belt left side and the right expansion tightening wheel 15 that is arranged on the Timing Belt right side.
Claims (6)
1, a kind of variable compression ratio engine, by cylinder block (11), piston (10), spark plug (9), valve (8), valve tappet (7), camshaft (6) and cylinder cap (2) are formed, it is characterized in that: in cylinder block (11), be set with relief piston (3), relief piston (3) is arranged between piston (10) and the cylinder cap (2), described relief piston (3) is for having " U " shell body of outward flange, the external diameter of the diameter of the outward flange of relief piston (3) and cylinder block (11) is suitable, between the outward flange of relief piston (3) and cylinder block (11) top, be provided with return spring (4), the firing chamber of motor (13) is arranged on the bottom of relief piston (3), described spark plug (9) passes in cylinder block (11) the oblique reeve firing chamber (13), the oblique suction port (12) that is provided with in the top of (13) in the firing chamber, described valve tappet (7) is arranged in the chamber of " U " shell body of relief piston (3), described camshaft (6) is installed on the relief piston (3), camshaft (6) vertically is arranged on the top of valve tappet (7), is provided with compression ratio on cylinder cap (2) top and adjusts eccentric shaft (1).
2, a kind of variable compression ratio engine according to claim 1 is characterized in that: the size of the axle point far away of corresponding each cylinder cap of described eccentric shaft (1) (2) equates, phase place is identical.
3, a kind of variable compression ratio engine according to claim 1 and 2 is characterized in that: the cylinder wall of cylinder block (11) is provided with and the size of spark plug (9) and the slotted hole (5) of range of movement coupling.
4, a kind of variable compression ratio engine according to claim 3 is characterized in that: the cylinder wall of cylinder block (11) is provided with and the size of suction port (12) and the slotted hole (14) of range of movement coupling.
5, a kind of variable compression ratio engine according to claim 4, it is characterized in that: motor body is provided with the Timing Belt regulating mechanism.
6, a kind of variable compression ratio engine according to claim 5 is characterized in that: described Timing Belt regulating mechanism is by the left Idle wheel (16) that is arranged on Timing Belt left side and be arranged on right Idle wheel (15) formation on Timing Belt right side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201029143U CN201433823Y (en) | 2009-05-20 | 2009-05-20 | VCR engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201029143U CN201433823Y (en) | 2009-05-20 | 2009-05-20 | VCR engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201433823Y true CN201433823Y (en) | 2010-03-31 |
Family
ID=42052630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201029143U Expired - Fee Related CN201433823Y (en) | 2009-05-20 | 2009-05-20 | VCR engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201433823Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103114908A (en) * | 2013-03-11 | 2013-05-22 | 范伟俊 | Engine with compression ratios variable |
| CN103147855A (en) * | 2013-03-11 | 2013-06-12 | 范伟俊 | Energy-saving engine |
| CN104033245A (en) * | 2013-03-05 | 2014-09-10 | 梁天宇 | Variable-compression-ratio engine |
| CN111993497A (en) * | 2020-08-06 | 2020-11-27 | 浙江中力工具制造有限公司 | Pressure-releasing starting device of gasoline chain saw |
-
2009
- 2009-05-20 CN CN2009201029143U patent/CN201433823Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033245A (en) * | 2013-03-05 | 2014-09-10 | 梁天宇 | Variable-compression-ratio engine |
| CN103114908A (en) * | 2013-03-11 | 2013-05-22 | 范伟俊 | Engine with compression ratios variable |
| CN103147855A (en) * | 2013-03-11 | 2013-06-12 | 范伟俊 | Energy-saving engine |
| CN111993497A (en) * | 2020-08-06 | 2020-11-27 | 浙江中力工具制造有限公司 | Pressure-releasing starting device of gasoline chain saw |
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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: 20100331 Termination date: 20120520 |