CN103670663A - Sleeved air valve structure for changing internal combustion engine combustion chamber volume - Google Patents
Sleeved air valve structure for changing internal combustion engine combustion chamber volume Download PDFInfo
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- CN103670663A CN103670663A CN201210345586.6A CN201210345586A CN103670663A CN 103670663 A CN103670663 A CN 103670663A CN 201210345586 A CN201210345586 A CN 201210345586A CN 103670663 A CN103670663 A CN 103670663A
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- air inlet
- door pocket
- seat ring
- inlet valve
- valve seat
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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 relates to a sleeved air valve structure for changing an internal combustion engine combustion chamber volume. An air inlet valve seat ring is installed in a cylinder cover in a sleeved mode; a sealing ring is used for sealing between the air inlet valve seat ring and the cylinder cover; the side wall of the cylinder cover is provided with an air inlet hole; an air inlet valve sleeve is installed in the air inlet valve seat ring in a sleeved mode; an air exhaust valve sleeve is installed in the air inlet valve sleeve in a sleeved mode; the air exhaust valve sleeve is provided with a first air exhaust hole and a second air exhaust hole; and a sparking plug is installed in the air exhaust valve sleeve. Inclined planes are respectively installed on the inner side of the lower end of the air inlet valve seat ring, the inner side and the outer side of the lower end of the air inlet valve sleeve and the outer side of the lower end of the air exhaust valve sleeve; an air inlet valve is formed by the inclined plane on the air inlet valve seat ring and the inclined plane on the outer side of the air inlet valve sleeve; and an air exhaust valve is formed by the inclined plane on the inner side of the lower end of the air inlet valve sleeve and the inclined plane on the outer side of the lower end of the air exhaust valve sleeve. A combustion chamber is formed by the inner side of the lower end of the air inlet valve seat ring, the lower end of the air exhaust valve sleeve and the lower end of the air inlet valve sleeve.
Description
Technical field
The present invention relates to a kind of set type air valve structure of realizing combustion chambers of internal combustion engines variable volume, belong to internal combustion engine power plant technical field.
Background technique
Internal-combustion engine, be a kind ofly to using the liquid such as gasoline as fuel, the chemical energy of the liquid such as gasoline changed into the mechanical driver unit of mechanical energy, therefore, can the chemical energy of the liquid such as gasoline be fully converted to mechanical energy, and the performance of combustion motor plays vital effect.If fuel is insufficient in burning Indoor Combustion or the acting of expanding, can produce a large amount of waste gas, so not only waste fuel, also can bad border of contaminated air.
The principal element that affects internal combustion engine thermal efficiency is compression ratio of internal-combustion engine, and compression ratio is too low, can not make high temperature, pressurized gas that fuel produces by burning fully expand, thereby affect air work; And the basic reason that restriction compression ratio improves to be fuel there is " detonation " phenomenon when burning, and cause the reason of " detonation ", be that the indoor high temperature of cylinder combustion, high pressure have surpassed a threshold value.
Existing " in-cylinder direct injection " " changeable air valve " at present, or " homogeneous charge compression ignite " although etc. technology obtained certain effect, fail fundamentally to solve " detonation " to improving restriction of compression ratio.
In order to improve the thermal efficiency of internal-combustion engine, existing various internal-combustion engine adopts dual valve or more complicated many air valve structures to take a breath, although make like this can fully take a breath in firing chamber, but the shape of but having ignored firing chamber is controlled Combustion Release Heat and the raising of whole degree of constant volume, therefore, many air valve structures can not fundamentally solve the problem that engine performance improves.
Summary of the invention
The object of the invention is for a kind of set type air valve structure of realizing combustion chambers of internal combustion engines variable volume is provided; This air valve structure is for the petrolic core of four-journey position---combustion-chamber shape and inlet and outlet structure have been carried out brand-new design; This air valve structure is using firing chamber part integral body corresponding to the cylinder head of piston head as valve, two valve covers are fitted together, below valve, be reserved with cavity, form firing chamber ideal form, that volume can carry out elasticity adjustment with pressure variation, thereby reach, make flame transmission distance the shortest, whole degree of constant volume maximum, cylinder pressure maximum is restricted, prevent that " detonation " phenomenon from occurring, the object that compression ratio is greatly improved; This air valve structure is simple, and inlet and outlet efficiency is high, stable performance, and cost of production is low, is applicable to being useful on all kinds of internal-combustion engines.
In order to achieve the above object, the present invention realizes by following technological means:
A kind of set type air valve structure of realizing combustion chambers of internal combustion engines variable volume, it comprises cylinder head, inlet valve seat ring, firing chamber, exhaust door pocket, spark plug, air inlet door pocket, inlet hole, seal ring, spring, first row pore, second row pore part, it is characterized in that: in cylinder head, be set with inlet valve seat ring, between inlet valve seat ring and cylinder head, by seal ring, seal, on the sidewall of cylinder head, be provided with inlet hole, in inlet valve seat ring, be set with intake valve cover, air inlet door pocket inner sleeve is equipped with exhaust door pocket, exhaust valve puts and is provided with first row pore, second row pore, in exhaust door pocket, be provided with spark plug, described inner side, inlet valve seat ring lower end, inside and outside both sides, air inlet door pocket lower end and outside, exhaust door pocket lower end are provided with inclined-plane, outside inclined-plane on inlet valve seat ring and air inlet door pocket, inclined-plane forms intake valve, formation exhaust valve in inclined-plane outside inclined-plane and exhaust door pocket lower end inside air inlet door pocket lower end, the inner side, lower end of described air valve seat ring, the lower end of exhaust door pocket are, the formation firing chamber, lower end of air inlet door pocket.
On described inlet valve seat ring, be provided with spring.
Working principle:
When internal combustion engine, the rotation of internal-combustion engine timing mechanism band moving cam, drives exhaust door pocket and intake valve cover to move up and down, and opens or closes inlet hole and exhaust port in good time; At intake stroke, piston moves downward, and intake valve is opened, exhaust valve closing, and it is indoor that fuel-air mixture is inhaled into cylinder combustion; In compression stroke, inlet and outlet Men Jun closes, and piston moves upward, the fuel-air mixture in compression cylinder; When piston rises near top dead center, plug ignition, makes the air-fuel mixture gas firing in cylinder, discharges chemical energy, and the pressure and temp in cylinder raises; At working stroke, the high temperature and high pressure gas in cylinder promotes piston and moves downward, and converts the pressure energy of gas to mechanical energy; In exhaust stroke, piston moves upward, and exhaust valve is opened, IC Intake Valve Closes, combustion gas; Go round and begin again.
The present invention mainly has following beneficial effect:
1, this air valve structure is for the petrolic core of four-journey position---combustion-chamber shape and inlet and outlet structure have been carried out brand-new design; This air valve structure is using firing chamber part integral body corresponding to the cylinder head of piston head as valve, two valve covers are fitted together, below valve, be reserved with cavity, form firing chamber ideal form, that volume can carry out elasticity adjustment with pressure variation, thereby reach, make flame transmission distance the shortest, whole degree of constant volume maximum, cylinder pressure maximum is restricted, prevent that " detonation " phenomenon from occurring, the object that compression ratio is greatly improved.
2, this air valve structure is simple, and inlet and outlet efficiency is high, stable performance, and cost of production is low, is applicable to being useful on all kinds of internal-combustion engines.
Accompanying drawing explanation
Fig. 1 is a kind of longitudinal profile structural representation of realizing the set type air valve structure of combustion chambers of internal combustion engines variable volume of the present invention;
Fig. 2 is the horizontal section structural representation at A-A place.
As shown in Figure 1 and Figure 2, in figure, various piece is represented by following Arabic numerals:
1. cylinder head, 2. inlet valve seat ring, 3. firing chamber, 4. exhaust door pocket, 5. spark plug, 6. air inlet door pocket, 7. inlet hole, 8. seal ring, 9. spring, 10. first row pore, 11. second row pores.
Below in conjunction with embodiment and Figure of description, the present invention is described in further detail:
Embodiment
Embodiment
As shown in Figure 1 and Figure 2, realize a set type air valve structure for combustion chambers of internal combustion engines variable volume, it comprises cylinder head 1, inlet valve seat ring 2, firing chamber 3, exhaust door pocket 4, spark plug 5, air inlet door pocket 6, inlet hole 7, seal ring 8, spring 9, first row pore 10, second row pore 11 parts.
As shown in Figure 1 and Figure 2, in cylinder head 1, be set with inlet valve seat ring 2, between inlet valve seat ring 2 and cylinder head 1, by seal ring 8, seal, on the sidewall of cylinder head 1, be provided with inlet hole 7, in inlet valve seat ring 2, be set with intake valve cover 6, in air inlet door pocket 6, be set with exhaust valve cover 4, on exhaust door pocket 4, be provided with first row pore 10, second row pore 11, in exhaust door pocket 4, be provided with spark plug 5; Described inlet valve seat ring 2 inner sides, lower end, air inlet door pocket 6 inside and outside both sides, lower end and exhaust door pocket 4 outsides, lower end are provided with inclined-plane, inclined-plane on inlet valve seat ring 2 and air inlet door pocket 6 inclined-planes, outside form intake valves, formation exhaust valve in inclined-plane outside inclined-plane and exhaust door pocket 4 lower ends inside air inlet door pocket 6 lower ends; The inner side, lower end of described air valve seat ring 2, the lower end of exhaust door pocket 4 are, the formation firing chamber, lower end 3 of air inlet door pocket 6.
As shown in Figure 1, on described inlet valve seat ring 2, be provided with spring 9.
Claims (2)
1. a set type air valve structure of realizing combustion chambers of internal combustion engines variable volume, it comprises cylinder head (1), inlet valve seat ring (2), firing chamber (3), exhaust door pocket (4), spark plug (5), air inlet door pocket (6), inlet hole (7), seal ring (8), spring (9), first row pore (10), second row pore (11) part, it is characterized in that: in cylinder head (1), be set with inlet valve seat ring (2), between inlet valve seat ring (2) and cylinder head (1), by seal ring (8), seal, on the sidewall of cylinder head (1), be provided with inlet hole (7), in inlet valve seat ring (2), be set with intake valve cover (6), in air inlet door pocket (6), be set with exhaust valve cover (4), on exhaust door pocket (4), be provided with first row pore (10), second row pore (11), in exhaust door pocket (4), be provided with spark plug (5), inner side, described inlet valve seat ring (2) lower end, inside and outside both sides, air inlet door pocket (6) lower end and outside, exhaust door pocket (4) lower end are provided with inclined-plane, inclined-plane, inclined-plane on inlet valve seat ring (2) and air inlet door pocket (6) outside forms intake valve, formation exhaust valve in inclined-plane outside inclined-plane and exhaust door pocket (4) lower end inside air inlet door pocket (6) lower end, the inner side, lower end of described air valve seat ring (2), the lower end of exhaust door pocket (4) are, the formation firing chamber, lower end (3) of air inlet door pocket (6).
2. a kind of set type air valve structure of realizing combustion chambers of internal combustion engines variable volume according to claim 1, is characterized in that: on described inlet valve seat ring (2), be provided with spring (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210345586.6A CN103670663A (en) | 2012-09-11 | 2012-09-11 | Sleeved air valve structure for changing internal combustion engine combustion chamber volume |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210345586.6A CN103670663A (en) | 2012-09-11 | 2012-09-11 | Sleeved air valve structure for changing internal combustion engine combustion chamber volume |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103670663A true CN103670663A (en) | 2014-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210345586.6A Pending CN103670663A (en) | 2012-09-11 | 2012-09-11 | Sleeved air valve structure for changing internal combustion engine combustion chamber volume |
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| CN (1) | CN103670663A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107023340A (en) * | 2017-05-23 | 2017-08-08 | 湖北科技学院 | A kind of automobile engine |
| CN110454251A (en) * | 2019-08-07 | 2019-11-15 | 中国北方发动机研究所(天津) | A kind of diesel engine changeable air valve and variable-geometry compression ratio integrated system |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR852101A (en) * | 1939-03-25 | 1940-01-24 | For a gas engine cylinder head with combined, refrigerated, single-control valves and discharge gas reserve chamber | |
| DE1056872B (en) * | 1955-05-03 | 1959-05-06 | Robert Gantzckow | Valve arrangement for internal combustion engines |
| US4503817A (en) * | 1982-02-18 | 1985-03-12 | General Motors Corporation | Annular valve stratified charge spark ignition engines |
| DE3600240A1 (en) * | 1986-01-07 | 1986-11-06 | Josef 6968 Walldürn Mandel | Central inlet valve |
| US4649872A (en) * | 1981-07-20 | 1987-03-17 | Solheim Russell G | Stratified combustion engine |
| DE4003498A1 (en) * | 1990-02-06 | 1990-07-05 | Schwartz Helma | Cylinder head for internal combustion engine - has inlet and exhaust valve combined in double seat ring valve |
| JPH1150866A (en) * | 1997-08-01 | 1999-02-23 | Toyota Motor Corp | Internal combustion engine variable compression ratio mechanism |
| JP2003328797A (en) * | 2002-05-15 | 2003-11-19 | Fuji Heavy Ind Ltd | Compression ratio variable mechanism and its variable method of engine |
| FR2894629A1 (en) * | 2005-12-13 | 2007-06-15 | Nicolas Casse | Cylinder head with optimized fluid filling, for engine, pump or compressor, has two independent, coaxial, piston type valves, displaced by action of camshaft(s) via four pawls |
| CN202768095U (en) * | 2012-09-11 | 2013-03-06 | 窦斌 | Sleeved air valve structure for changing internal combustion engine combustion chamber volume |
-
2012
- 2012-09-11 CN CN201210345586.6A patent/CN103670663A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR852101A (en) * | 1939-03-25 | 1940-01-24 | For a gas engine cylinder head with combined, refrigerated, single-control valves and discharge gas reserve chamber | |
| DE1056872B (en) * | 1955-05-03 | 1959-05-06 | Robert Gantzckow | Valve arrangement for internal combustion engines |
| US4649872A (en) * | 1981-07-20 | 1987-03-17 | Solheim Russell G | Stratified combustion engine |
| US4503817A (en) * | 1982-02-18 | 1985-03-12 | General Motors Corporation | Annular valve stratified charge spark ignition engines |
| DE3600240A1 (en) * | 1986-01-07 | 1986-11-06 | Josef 6968 Walldürn Mandel | Central inlet valve |
| DE4003498A1 (en) * | 1990-02-06 | 1990-07-05 | Schwartz Helma | Cylinder head for internal combustion engine - has inlet and exhaust valve combined in double seat ring valve |
| JPH1150866A (en) * | 1997-08-01 | 1999-02-23 | Toyota Motor Corp | Internal combustion engine variable compression ratio mechanism |
| JP2003328797A (en) * | 2002-05-15 | 2003-11-19 | Fuji Heavy Ind Ltd | Compression ratio variable mechanism and its variable method of engine |
| FR2894629A1 (en) * | 2005-12-13 | 2007-06-15 | Nicolas Casse | Cylinder head with optimized fluid filling, for engine, pump or compressor, has two independent, coaxial, piston type valves, displaced by action of camshaft(s) via four pawls |
| CN202768095U (en) * | 2012-09-11 | 2013-03-06 | 窦斌 | Sleeved air valve structure for changing internal combustion engine combustion chamber volume |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107023340A (en) * | 2017-05-23 | 2017-08-08 | 湖北科技学院 | A kind of automobile engine |
| CN107023340B (en) * | 2017-05-23 | 2023-02-28 | 湖北科技学院 | Automobile engine |
| CN110454251A (en) * | 2019-08-07 | 2019-11-15 | 中国北方发动机研究所(天津) | A kind of diesel engine changeable air valve and variable-geometry compression ratio integrated system |
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Application publication date: 20140326 |