CN104533637A - Rotating mechanism type adjusting system for engine displacement - Google Patents
Rotating mechanism type adjusting system for engine displacement Download PDFInfo
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- CN104533637A CN104533637A CN201410697277.4A CN201410697277A CN104533637A CN 104533637 A CN104533637 A CN 104533637A CN 201410697277 A CN201410697277 A CN 201410697277A CN 104533637 A CN104533637 A CN 104533637A
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- piston
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- combustion
- rotating body
- cavity volume
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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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Abstract
The invention provides a rotating mechanism type adjusting system for engine displacement, and belongs to the technical field of internal combustion engines. The system comprises a cylinder, a cylinder cover, a piston, a piston ring, a connecting rod, a volumetric chamber, a spring, a rotating body, a rotating shaft and a through hole; the volumetric chamber is formed in the piston, and the left end of the volumetric chamber communicates with the top part of the piston through the through hole; the rotating shaft is embedded into the piston; the rotating body is arranged in the volumetric chamber and is integrally fixedly connected with the rotating shaft, wherein the rotating body is integrally connected with the piston through the spring; when the pressure in a combustion chamber reaches the top value and the combustion pressure is relatively high under a high-speed working condition, the rotating body anticlockwise rotates, and then the volume of the combustion chamber is increased; when the pressure in the combustion chamber reaches the top value and the combustion pressure is relatively low under a low-speed working condition, the rotating body clockwise rotates, and the volume of the combustion change is reduced. The system is reasonable in structure, simple in design, and suitable for the optimal design of the engine piston.
Description
Technical field
The invention belongs to the compression ratio design apparatus of technical field of internal combustion engines, specifically, is a kind of engine displacement rotating machinery regulating system.
Background technique
Compression ratio refers to that engine mixed gas body is by the degree compressed, with the ratio of the volume of cylinder (i.e. combustion chamber volume) after the cylinder total volume before compression and compression.At present, overwhelming majority automobile adopts so-called ' Reciprocating engine ', simply, be exactly in cylinder, a piston is had to do straight reciprocating motion again and again, and always circulating endlessly, so the movement travel scope of going round and beginning again at this and having it certain among continual working stroke.With regard to certain cylinder of motor, when the stroke of piston arrives minimum point, location point now is just called lower dead center, it is range volume that whole cylinder comprises the volume that firing chamber formed, when piston reverses direction motion, when arriving peak position, this location point is just called top dead center, the volume formed is the minimum situation of whole piston movement swept volume, and the compression ratio that need calculate is exactly the ratio of this range volume and minimum volume.The object of variable compression ratio is the fuel economy improving supercharged engine.In supercharged engine, in order to prevent pinking, its compression ratio is lower than naturally aspirated engine.When low pressure, the thermal efficiency reduces. and fuel economy is declined.Special in turbosupercharged engine due to supercharging level rise slowly under low compression ratio condition moment of torsion rise also very slow. form so-called turbo lag phenomenon.That is, motor is when low speed, and pressurization is delayed, wait until motor accelerate to certain rotating speed after pressurization system just play a role.In order to address this problem, variable compression ratio is important method.In other words. make compression ratio bring up to identical with naturally aspirated engine compression ratio or exceed at the running on the lower load of low pressure: on the other hand. suitably reduce compression ratio under the high load operating mode in high pressure-charging.In other words, along with the change of load regulates compression ratio continuously. the thermal efficiency can be improved from low-load in high whole condition range.But the compression ratio of available engine is immutable, because combustion chamber volume and displacement are all fixing parameters, reserve in the design.
Through existing literature search, find that number of patent application is 20092014360.5, name is called a kind of patented technology changing the mechanism of engine compression ratio, a kind of mechanism of variable compression ratio is proposed, make combustion efficiency higher, but what its compression ratio change needs were artificial goes to control, and can not regulate by teaching display stand.
Summary of the invention
The present invention is directed to above-mentioned deficiency, provide a kind of engine displacement rotating machinery regulating system, the compression ratio of motor can self-control.
The present invention is achieved through the following technical solutions, the present invention includes cylinder, cylinder cap, piston, first piston ring, second piston ring, connecting rod, cavity volume, running shaft, solid of rotation, spring and penetration hole, cylinder cap is arranged in the upper end of cylinder, piston is arranged in cylinder, cylinder, cylinder cap, piston forms firing chamber together, first piston ring, second piston ring is arranged in the top of piston, connecting rod and piston link together, cavity volume is arranged in piston, the left end of cavity volume is connected with the top of piston by penetration hole, running shaft is embedded in piston, solid of rotation to be arranged in cavity volume and to be consolidated with running shaft, solid of rotation is linked together by spring and piston.
Further, the longitudinal section of cavity volume is arc-shaped in the present invention, and the cross section of moving body is rectangular.
The invention has the beneficial effects as follows: the present invention is reasonable in design, structure is simple, and under different engine speed, the compression ratio of motor is variable, and the combustion efficiency of each operating mode motor is all higher.
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;
Fig. 3 is the structural representation of B-B section in Fig. 1;
Label in accompanying drawing is respectively: 1, cylinder, and 2, cylinder cap, 3, piston, 4, first piston ring, the 5, second piston ring, 6, connecting rod, 7, cavity volume, 8, running shaft, 9, solid of rotation, 10, spring, 11, penetration hole.
Embodiment
Elaborate to embodiments of the invention below in conjunction with accompanying drawing, the present embodiment, premised on technical solution of the present invention, give detailed mode of execution and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
embodiment
Embodiments of the invention as shown in Figure 1 to Figure 3, the present invention includes cylinder 1, cylinder cap 2, piston 3, first piston ring 4, second piston ring 5, connecting rod 6, cavity volume 7, running shaft 8, solid of rotation 9, spring 10 and penetration hole 11, cylinder cap 2 is arranged in the upper end of cylinder 1, piston 3 is arranged in cylinder 1, cylinder 1, cylinder cap 2, piston 3 forms firing chamber together, first piston ring 4, second piston ring 5 is arranged in the top of piston 3, connecting rod 6 and piston 3 link together, cavity volume 7 is arranged in piston 3, the left end of cavity volume 7 is connected by the top of penetration hole 11 with piston 3, running shaft 8 is embedded in piston 3, solid of rotation 9 to be arranged in cavity volume 7 and to be consolidated with running shaft 8, solid of rotation 9 is linked together by spring 10 and piston 3, the longitudinal section of cavity volume 7 is arc-shaped, the cross section of moving body 10 is rectangular.
In implementation process of the present invention, solid of rotation 9 and running shaft 8 in cavity volume 7 can together with rotate.When the rotating speed of motor is higher, when firing chamber maximum combustion pressure is larger, solid of rotation 9 is rotated counterclockwise and Compress Spring 10, then engine chamber becomes large, compression ratio diminishes, and the knocking tends of motor diminishes; When the rotating speed of motor is lower, when firing chamber maximum combustion pressure is less, under the elastic reaction of spring 10, solid of rotation 9 dextrorotation, then engine chamber diminishes, compression ratio becomes large, and the combustion efficiency of motor is higher.
Claims (2)
1. an engine displacement rotating machinery regulating system, comprise cylinder (1), cylinder cap (2), piston (3), first piston ring (4), second piston ring (5) and connecting rod (6), cylinder cap (2) is arranged in the upper end of cylinder (1), piston (3) is arranged in cylinder (1), cylinder (1), cylinder cap (2), piston (3) forms firing chamber together, first piston ring (4), second piston ring (5) is arranged in the top of piston (3), connecting rod (6) and piston (3) link together, it is characterized in that, also comprise cavity volume (7), running shaft (8), solid of rotation (9), spring (10) and penetration hole (11), cavity volume (7) is arranged in piston (3), the left end of cavity volume (7) is connected by the top of penetration hole (11) with piston (3), running shaft (8) is embedded in piston (3), solid of rotation (9) to be arranged in cavity volume (7) and to be consolidated with running shaft (8), solid of rotation (9) is linked together by spring (10) and piston (3).
2. engine displacement rotating machinery regulating system according to claim 1, is characterized in that, the longitudinal section of cavity volume (7) is arc-shaped, and the cross section of moving body (10) is rectangular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410697277.4A CN104533637A (en) | 2014-11-26 | 2014-11-26 | Rotating mechanism type adjusting system for engine displacement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410697277.4A CN104533637A (en) | 2014-11-26 | 2014-11-26 | Rotating mechanism type adjusting system for engine displacement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104533637A true CN104533637A (en) | 2015-04-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410697277.4A Pending CN104533637A (en) | 2014-11-26 | 2014-11-26 | Rotating mechanism type adjusting system for engine displacement |
Country Status (1)
| Country | Link |
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| CN (1) | CN104533637A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0921350A (en) * | 1995-07-06 | 1997-01-21 | Nissan Diesel Motor Co Ltd | Piston for internal combustion engine |
| JPH10205333A (en) * | 1997-01-21 | 1998-08-04 | Isuzu Ceramics Kenkyusho:Kk | Structure of combustion chamber in engine |
| JP2000136724A (en) * | 1998-11-04 | 2000-05-16 | Isuzu Ceramics Res Inst Co Ltd | Gas engine with main chamber capacity variable means |
| CN101333970A (en) * | 2008-07-29 | 2008-12-31 | 奇瑞汽车股份有限公司 | Variable compression ratio engines |
| JP2012097656A (en) * | 2010-11-02 | 2012-05-24 | Toyota Motor Corp | Internal combustion engine |
| JP2012229642A (en) * | 2011-04-26 | 2012-11-22 | Nissan Motor Co Ltd | Variable compression ratio device for internal combustion engine |
-
2014
- 2014-11-26 CN CN201410697277.4A patent/CN104533637A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0921350A (en) * | 1995-07-06 | 1997-01-21 | Nissan Diesel Motor Co Ltd | Piston for internal combustion engine |
| JPH10205333A (en) * | 1997-01-21 | 1998-08-04 | Isuzu Ceramics Kenkyusho:Kk | Structure of combustion chamber in engine |
| JP2000136724A (en) * | 1998-11-04 | 2000-05-16 | Isuzu Ceramics Res Inst Co Ltd | Gas engine with main chamber capacity variable means |
| CN101333970A (en) * | 2008-07-29 | 2008-12-31 | 奇瑞汽车股份有限公司 | Variable compression ratio engines |
| JP2012097656A (en) * | 2010-11-02 | 2012-05-24 | Toyota Motor Corp | Internal combustion engine |
| JP2012229642A (en) * | 2011-04-26 | 2012-11-22 | Nissan Motor Co Ltd | Variable compression ratio device for internal combustion engine |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150422 |