CN101709669B - Internal combustion engine piston device capable of discharging combustion chamber exhaust gas to the outside - Google Patents

Internal combustion engine piston device capable of discharging combustion chamber exhaust gas to the outside Download PDF

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Publication number
CN101709669B
CN101709669B CN2009101943191A CN200910194319A CN101709669B CN 101709669 B CN101709669 B CN 101709669B CN 2009101943191 A CN2009101943191 A CN 2009101943191A CN 200910194319 A CN200910194319 A CN 200910194319A CN 101709669 B CN101709669 B CN 101709669B
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China
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piston
small piston
combustion chamber
combustion engine
internal combustion
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Expired - Fee Related
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CN2009101943191A
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Chinese (zh)
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CN101709669A (en
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汪荣林
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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

An internal combustion engine piston device capable of discharging combustion chamber exhaust gas to the outside comprises an internal combustion engine cylinder, a gas inlet valve and a gas vent valve which are arranged on the top of the cylinder and a main piston arranged in the cylinder, wherein the upper part of the main piston is provided with a cavity, a small piston is arranged in the cavity and can slide up and down in the cavity; a upper retainer ring and a lower retainer ring are separately fixed on the upper end and lower end of the cavity; the top of the small piston is provided with an exhaust pit in the middle position; a compression spring is arranged between the bottom of the small piston and the lower retainer ring; the middle of the lower retainer ring is provided with an arched barrier strip, and an anti-rotating card used for preventing the rotation of the small piston is arranged between the arched barrier strip and the bottom of the small piston. In the piston device of the invention, the small piston is arranged on the upper part of the main piston, and the small piston contacts with the upper retainer ring in the tail section of exhaust stroke under the action of the force of the compression spring and the self inertia force so as to compress the combustion chamber to the minimum volume and drain the exhaust gas in the combustion chamber, thus increasing the efficiency of the combustion chamber. The piston device has simple and reasonable structure, convenient assembly and reliable operation.

Description

The internal combustion engine device that waste gas of combustion chamber can efflux
Technical field
The present invention relates to the internal combustion engine device that a kind of reciprocating piston type oil-burning internal combustion engine, particularly waste gas of combustion chamber can efflux.
Background technique
Existing internal-combustion engine is because certain volume is occupied in the firing chamber, and in exhaust at the end, can stay the high temperature residual gas suitable with combustion chamber volume in the cylinder can not efflux, because the existence of high temperature residual gas makes air-breathing mixture temperature at the end higher.The minimizing exhaust at the end interior high temperature residual volume of cylinder is that everybody generally acknowledges a way that can improve engine efficiency.
Summary of the invention
Purpose of the present invention aim to provide a kind of simple and reasonable, the efficiency of internal combustion engine is higher, at the end the high temperature residual gas also can most of internal combustion engine device of discharging cylinder body in the firing chamber in exhaust, to overcome deficiency of the prior art.
The internal combustion engine device that a kind of waste gas of combustion chamber that designs by this purpose can efflux, comprise internal combustion engine cylinders, be arranged on the suction valve and the outlet valve on cylinder body top and be arranged on the interior main piston of cylinder body, its structure characteristic is that main piston top is provided with cavity, and the upper end of cavity and lower end are fixed with back-up ring and following back-up ring respectively; Small piston is arranged among the cavity, and can slide up and down in cavity; Small piston top central authorities are provided with the exhaust pit, are provided with pressure spring between small piston bottom and the following back-up ring.
Be provided with arc blend stop in the middle of the described back-up ring down, also be provided with the anti-rotation card that prevents that small piston from rotating between arc blend stop and the small piston bottom.
Described anti-rotation card is U-shaped spare socket up and down, and last U-shaped spare is inverted and is fixed on the small piston bottom, and following U-shaped spare is fixed on down on the arc blend stop of back-up ring.
The main piston of described outlet valve correspondence, small piston reach the end face of going up back-up ring and are provided with the valve depressed part.
Be provided with the oblique air guide bar more than three in the pit of described small piston, to form swirling eddy.
The top of described main piston and small piston is respectively arranged with closure gasket groove and seal ring.
Described cavity is cylindrical.
The present invention is provided with small piston on the top of main piston, small piston, touches with last back-up ring under the effect of pressure spring power and inertial force own mutually at the exhaust stroke rear, and the firing chamber is compressed to minimum, draining the burning chamber waste gas, thereby improve the efficient of internal-combustion engine.It is simple and reasonable, and is easy to assembly, reliable.
Description of drawings
Fig. 1 is one embodiment of the invention structural representation.
Fig. 2 is the partial enlarged drawing of piston and cavity assembly structure.
Fig. 3 is the structural representation of main piston.
Fig. 4 is the structural representation of small piston.
Fig. 5 is the structural representation of following back-up ring.
Fig. 6 is the structural representation of aspirating stroke.
Fig. 7 is compression structural representation at the end.
Fig. 8 is an exhaust structural representation at the end.
Embodiment
Below in conjunction with drawings and Examples the present invention is further described.
Referring to Fig. 1-Fig. 8, this internal combustion engine device comprises the small piston 4 in main piston 1 and the insertion big piston.Be provided with cylindrical cavity in the middle of main piston 1 top, cavity 11 upper ends are provided with back-up ring 3, and the cavity lower end is provided with down back-up ring 13, are provided with arc blend stop 12 in the middle of the following back-up ring.Main piston 1 top is provided with closure gasket groove 10, and the middle part is provided with piston pin hole 14.Be provided with pit 5 in the middle of the end face of small piston 4, for ignition tip or oil nozzle provide cavity at the exhaust stroke rear; Be provided with three oblique air guide bars in the pit 5, to form swirling eddy.
Small piston 4 upper outside are provided with closure gasket groove 8.Be provided with pressure spring 9 between small piston 4 bottoms and the arc blend stop 12.The main piston 1 of outlet valve 7 correspondences, small piston 4, and on the end face of back-up ring 3 be provided with valve depressed part 6, for exhaust valve provides cavity at the exhaust stroke rear.Also be provided with the anti-rotation card between small piston 4 bottoms and the arc blend stop 9, the anti-rotation card is two U-shaped sheets that coincide mutually, and half and small piston 4 bottoms are fixed, and half and arc blend stop 12 roof anchorage can prevent that small piston 4 from rotating.Small piston 4 tops are provided with piston ring.
Be the plane below the IC engine cylinder head, intake valve 2 is vertical with the plane below the cylinder with the moving direction of exhaust valve 7; Intake valve 2, when exhaust valve 7 cuts out, intake valve 2, exhaust valve 7 is same plane with the cylinder lower plane.The upper space of small piston 4 in main piston 1 is firing chamber 16, when main piston 1 goes upward to peak, small piston 4 is washed into rear under the powerful pressure of gas in the jar in compression, join with following back-up ring, as shown in Figure 7, when main piston 1 goes upward to peak, small piston 4 at the exhaust stroke rear under the effect of pressure spring power and inertial force own, touch mutually with last back-up ring, as shown in Figure 8, to drain waste gas.17 is that connecting rod, 18 is that bent axle, 19 is oil nozzle or ignition tip among the figure.

Claims (7)

1. internal combustion engine device that waste gas of combustion chamber can efflux, comprise internal combustion engine cylinders (15), be arranged on the suction valve (2) and the outlet valve (7) on cylinder body top and be arranged on the interior main piston (1) of cylinder body, it is characterized in that main piston top is provided with cavity (11), the upper end of cavity (11) and lower end are fixed with back-up ring (3) and following back-up ring (13) respectively; Small piston (4) is arranged among the cavity (11), and can slide up and down in cavity (11); Small piston (4) top central authorities are provided with exhaust pit (5), are provided with pressure spring (9) between small piston (4) bottom and the following back-up ring (13).
2. the internal combustion engine device that can efflux according to the described waste gas of combustion chamber of claim 1, it is characterized in that being provided with arc blend stop (12) in the middle of the described back-up ring (13) down, arc blend stop and small piston (4) also are provided with the anti-rotation card that prevents that small piston from rotating between the bottom.
3. the internal combustion engine device that can efflux according to the described waste gas of combustion chamber of claim 2, it is characterized in that described anti-rotation card is U-shaped spare socket up and down, last U-shaped spare is inverted and is fixed on small piston (4) bottom, and following U-shaped spare is fixed on down on the arc blend stop (12) of back-up ring (13).
4. the internal combustion engine device that can efflux according to the described waste gas of combustion chamber of claim 1 is characterized in that the corresponding main piston (1) of described outlet valve (7), small piston (4) reach the end face of going up back-up ring (3) and be provided with valve depressed part (6).
5. the internal combustion engine device that can efflux according to the described waste gas of combustion chamber of claim 4 is characterized in that being provided with in the pit (5) of described small piston (4) the oblique air guide bar more than three, to form swirling eddy.
6. the internal combustion engine device that can efflux according to the described waste gas of combustion chamber of claim 4 is characterized in that the top of described main piston (1) and small piston (4) is respectively arranged with closure gasket groove (10) (8) and seal ring.
7. the internal combustion engine device that can efflux according to the described waste gas of combustion chamber of claim 1 is characterized in that described cavity (11) is for cylindrical.
CN2009101943191A 2009-11-26 2009-11-26 Internal combustion engine piston device capable of discharging combustion chamber exhaust gas to the outside Expired - Fee Related CN101709669B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009101943191A CN101709669B (en) 2009-11-26 2009-11-26 Internal combustion engine piston device capable of discharging combustion chamber exhaust gas to the outside

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Application Number Priority Date Filing Date Title
CN2009101943191A CN101709669B (en) 2009-11-26 2009-11-26 Internal combustion engine piston device capable of discharging combustion chamber exhaust gas to the outside

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CN101709669A CN101709669A (en) 2010-05-19
CN101709669B true CN101709669B (en) 2011-07-27

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102913324B (en) * 2011-11-01 2014-12-17 摩尔动力(北京)技术股份有限公司 High detonation pressure engine
CN104632381A (en) * 2015-01-07 2015-05-20 吕建伟 Automobile double-piston transfiguration type engine
US9885281B2 (en) * 2016-06-13 2018-02-06 Ford Global Technologies, Llc Engine system with two pistons
CN109989845B (en) * 2017-12-29 2020-06-12 长城汽车股份有限公司 Engine piston, cylinder and vehicle

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2506838A1 (en) * 1981-05-27 1982-12-03 Wolff Rene Reciprocating piston IC-engine - has three coaxial pistons to define variable precompression volume for inlet air
CN1054472A (en) * 1990-06-30 1991-09-11 高永祥 Compound two-stroke internal combustion engine
US5908012A (en) * 1995-06-09 1999-06-01 Honda Giken Kogyo Kabushiki Kaisha Combustion control device for an engine
WO2001057377A1 (en) * 2000-02-02 2001-08-09 Normand Beaudoin Mechanical discharge self-supercharging engine
KR20090060609A (en) * 2007-12-10 2009-06-15 정병욱 A internal-combustion engine which is possessed of a double piston

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2506838A1 (en) * 1981-05-27 1982-12-03 Wolff Rene Reciprocating piston IC-engine - has three coaxial pistons to define variable precompression volume for inlet air
CN1054472A (en) * 1990-06-30 1991-09-11 高永祥 Compound two-stroke internal combustion engine
US5908012A (en) * 1995-06-09 1999-06-01 Honda Giken Kogyo Kabushiki Kaisha Combustion control device for an engine
WO2001057377A1 (en) * 2000-02-02 2001-08-09 Normand Beaudoin Mechanical discharge self-supercharging engine
KR20090060609A (en) * 2007-12-10 2009-06-15 정병욱 A internal-combustion engine which is possessed of a double piston

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Granted publication date: 20110727

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