CN102305126A - Gasoline engine and inclined air valve cylinder head for same - Google Patents

Gasoline engine and inclined air valve cylinder head for same Download PDF

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Publication number
CN102305126A
CN102305126A CN201110061268A CN201110061268A CN102305126A CN 102305126 A CN102305126 A CN 102305126A CN 201110061268 A CN201110061268 A CN 201110061268A CN 201110061268 A CN201110061268 A CN 201110061268A CN 102305126 A CN102305126 A CN 102305126A
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CN
China
Prior art keywords
cylinder head
valve
petrol engine
exhaust
air
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.)
Pending
Application number
CN201110061268A
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Chinese (zh)
Inventor
刘兵
谢育明
陈宏波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Loncin General Dynamics Co Ltd
Original Assignee
Loncin General Dynamics Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Loncin General Dynamics Co Ltd filed Critical Loncin General Dynamics Co Ltd
Priority to CN201110061268A priority Critical patent/CN102305126A/en
Priority to PCT/CN2011/084765 priority patent/WO2012122846A1/en
Publication of CN102305126A publication Critical patent/CN102305126A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
    • F02F1/4285—Shape or arrangement of intake or exhaust channels in cylinder heads of both intake and exhaust channel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/14—Tappets; Push rods
    • F01L1/146—Push-rods
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/18—Rocking arms or levers
    • F01L1/181—Centre pivot rocking arms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/46—Component parts, details, or accessories, not provided for in preceding subgroups
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F1/26—Cylinder heads having cooling means
    • F02F1/28—Cylinder heads having cooling means for air cooling
    • F02F1/30—Finned cylinder heads
    • F02F1/32—Finned cylinder heads the cylinder heads being of overhead valve type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/26—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder
    • F01L1/262—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder with valve stems disposed radially from a centre which is substantially the centre of curvature of the upper wall surface of a combustion chamber
    • 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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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

The invention discloses a gasoline engine and an inclined air valve cylinder head for the same. An air inlet valve is inclined towards an air inlet channel from the bottom to the top; and an air exhaust valve is inclined towards an air exhaust channel from the bottom to the top. The invention facilitates organizing air inlet, improving the air inlet efficiency, organizing air inlet rolling flow and air inlet vortex in an air cylinder, enhancing air flow turbulence in the cylinder, accelerating combustion and increasing the power of the gasoline engine, can reduce resistance to air feeding and air exhaust and is favorable for increasing the power and reducing the oil consumption and emission; the power of the gasoline engine with the maximum power of 7.5 kW (the rotating speed is 3,060 rpm) can be increased to 8.0 kW and the emission is reduced from 8.0 g/kW.h to 6.0 g/kW.h which meets or even exceeds a standard of 8 g/kW.h in the environmental protection agency (EPA)3 stage, and environmental protection is facilitated; furthermore, the deformation resistance is enhanced, the cooling effect of a nose region is enhanced greatly, the deformation of the cylinder head at high temperature is reduced and the reliability is improved.

Description

Petrol engine inclined valve cylinder head and petrol engine thereof
Technical field
The present invention relates to a kind of power engine parts and application thereof, particularly a kind of gasoline engine part and application thereof.
Background technique
Petrol engine is a kind of dynamic power machine that uses gasoline for the fuel.Partly form by cylinder, connecting rod, gas distribution system, oil supply system, lubrication system and ignition system etc.; Intake duct and air outlet flue are arranged during cylinder head is provided with, and form the firing chamber face jointly with cylinder, thereby, the parts of petrol engine outbalance belonged to.Valve assembly is the vitals on the cylinder head, is used to the firing chamber fuel gas mixer and combustion gas are provided.The valve of valve assembly is arranged at cylinder head, is used for getting in touch between opening and closing intake and exhaust channel and the firing chamber.
In the prior art, valve is provided with the convenience that main consideration cylinder head is arranged, is generally perpendicular to intake duct and air outlet flue, increases intake and exhaust resistance and influences intake and exhaust efficient; Thereby influence the abundant burning of the combination gas in the firing chamber, reduce petrol engine efficient, the influence discharging.
Therefore, need the valve assembly of petrol engine cylinder head be improved, reduce intake and exhaust resistance, improve the operational efficiency of petrol engine, fuel saving reduces discharging; Simultaneously, the installation for other assemblies on the cylinder head has adaptability preferably.
Summary of the invention
In view of this, the present invention provides a kind of petrol engine inclined valve cylinder head and petrol engine thereof, reduces intake and exhaust resistance, improves the operational efficiency of petrol engine, and fuel saving reduces discharging; Simultaneously, the installation for other assemblies on the cylinder head has adaptability preferably.
Petrol engine inclined valve cylinder head of the present invention; Comprise cylinder head body and the gas-entered passageway, exhaust passage and the spark plug mounting hole that are arranged at the cylinder head body; This external surface of cylinder head is provided with radiating fin; The inboard firing chamber face that forms of cylinder head body; The corresponding intake valve that is provided with gas-entered passageway on the said cylinder head body; The corresponding exhaust valve that is provided with the exhaust passage, said intake valve by bottom to top to the gas-entered passageway tilt, exhaust valve by bottom to top to the exhaust passage tilt; Said intake valve axis and exhaust valve axis are respectively perpendicular to the tangent plane of firing chamber face and its crosspoint.
Further, the seat ring inner end of the seat ring inner end of said intake valve and exhaust valve and firing chamber face conformal; Right shape promptly adapts to shape; The end surface shape of the seat ring inner end of valve and the seat ring inner end of exhaust valve and firing chamber face shape adapt; Eliminate step; Reduce interference to air inlet and exhaust; Reduce resistance; Eliminate the sudden change of dead angle and shape, guarantee the abundant burning of mixed gas, improve petrol engine efficient.
Further, said firing chamber face forms bridge of the nose district between intake valve and exhaust valve, and the width that said bridge of the nose district is positioned at the firing chamber face is greater than 8mm; Suitably increase bridge of the nose district thickness, increase the ability of its opposing heat distortion amount, effectively improve the valve sealing performance, can effectively avoid the valve phenomenon that leaks air; Simultaneously, avoid the instantaneous interference that occurs between the intake and exhaust, guarantee fully burning, improve petrol engine power.
Further, said gas-entered passageway axis and exhaust passage axis coplane; Gas-entered passageway axis and exhaust passage axis are in same plane, are beneficial to the layout of valve and rocking arm.
Further, the angle of said intake valve and exhaust valve and firing chamber face vertical center line is respectively 22.5 °, and said gas-entered passageway and exhaust passage tilt to the top with respect to the attachment face of cylinder head body respectively from inside to outside; Further reduce the angle between inlet and exhaust valve and the intake and exhaust channel, reduce intake and exhaust resistance, simultaneously, make things convenient for the layout of intake and exhaust channel.
Further, the seat ring cylindrical of the seat ring cylindrical of said intake valve and exhaust valve and firing chamber face bottom margin are tangent; Increase the distance between intake valve and the exhaust valve, and all adapt, intake and exhaust are not disturbed mutually, guarantee the power character and the Economy of petrol engine with the intake and exhaust streamline.
Further; Said intake valve and exhaust valve are respectively equipped with rocking arm; The corresponding rocker arm bracket that is provided with rocking arm on the said cylinder head body; Said rocking arm is set with pitman arm shaft; Said pitman arm shaft is being arranged at rocker arm bracket around the mode single-degree-of-freedom of self rotational; Two pitman arm shafts radially inwardly are obliquely installed to the top with respect to cylinder head body attachment face, and the angle of inclination of said pitman arm shaft is corresponding identical with the angle of inclination of intake valve and exhaust valve; It is the lever construction of fulcrum that said rocking arm forms with the pitman arm shaft; The pitman arm shaft that is obliquely installed can be adapted to the inclined valve structure and be adapted to the geometrical shape of composite sphere firing chamber; Be beneficial to and guarantee that rocking arm drives the harmony and the sealing of valve event; Fixed rocking arm is in running; The play of its all directions or rolling momentum are little; Can effectively reduce the rate of fault of rocking arm, reduce maintenance cost; The reasonable Arrangement rocking arm is come in the position that is adapted to intake and exhaust, also is beneficial to guarantee to guarantee port timing valve timing, thereby improves performance and reduce discharging.
Further, said rocker arm bracket is upwards hatch frame, and said pitman arm shaft two ends correspondence penetrates the opening both sides of rocker arm bracket and cooperating around the mode of self rotational, the opening internal fixation that said rocking arm is positioned at rocker arm bracket is arranged at pitman arm shaft; The outside side of said rocker arm bracket hatch frame is split type bearing block structure, comprises gland and pedestal, detachable fixed connection between said gland and the pedestal; Adopt split type bearing block structure, be beneficial to the installation of pitman arm shaft, and reduce friction area, increase the flexibility of rocking arm motion, simple and compact for structure, conserve space.
The invention also discloses a kind of petrol engine of using petrol engine inclined valve cylinder head, said petrol engine inclined valve cylinder head is installed on petrol engine.
Beneficial effect of the present invention: petrol engine inclined valve cylinder head of the present invention and petrol engine thereof; Because valve is tilting; And intake valve axis and exhaust valve axis are respectively perpendicular to the tangent plane of firing chamber face and its crosspoint; Angle between inlet and exhaust valve and the intake and exhaust air flue is littler than existing structure firing chamber face, is convenient to organize air inlet, improves intake efficiency; Be convenient to roll stream and intake swirl in the air inlet of cylinder inner tissue; Increase flow perturbation in the cylinder, accelerate burning, improve petrol engine power; The intake and exhaust direction of intake and exhaust valve and firing chamber adapts, and is beneficial to reduce resistance largely, improves petrol engine efficient; Increase the power character of petrol engine, make intake and exhaust more smooth and easy, be beneficial to and improve petrol engine power; Reduce fuel consume, reduce exhaust emissions, the protection environment; Petrol engine with peak output (rotating speed 3060rpm) 7.5kW is an example, and power can be brought up to 8.0kW, and discharging is reduced to 6.0g/kW.h by 8.0g/kW.h, satisfies and surpass the standard of EPA3 stage 8g/kW.h; This shows that petrol engine power of the present invention improves and discharging reduces comparatively obvious.
Inclined valve can make the bridge of the nose district in the middle of the intake and exhaust channel wideer, is beneficial to cooling, increases non-deformability, has improved the cooling effect in bridge of the nose district greatly, has reduced cylinder head distortion at high temperature, has improved reliability.
Cylinder head of the present invention is used for motorcycle or common universal machine, and energy saving, reduction consume.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further described.
Fig. 1 is a cross-sectional view of the present invention;
Fig. 2 is a stereogram of the present invention;
Fig. 3 is a pitman arm shaft and the sectional view that cooperates of rocker arm bracket.
Embodiment
Figure 1 a schematic cross-sectional structure of the present invention, Figure 2 is a perspective view of the present invention, Figure 3 is a rocker arm shaft and a cross-sectional view with, as shown: the embodiment of the gasoline engine cylinder head inclined valve, including the cylinder head body 1 provided on the cylinder head body 1 the intake passage 3, the exhaust passage 2 and the plug attachment hole 6, the outer surface of the cylinder head body 1 has a heat sink 4, the cylinder body 1 is formed inside the combustion chamber surface 5, the said cylinder head body 1 corresponding to the intake passage 3 has an intake valve 31 and exhaust passage 2 corresponds to a vent door 21, the intake valve 31 from the bottom to the top to the intake passage 3 is inclined, the exhaust valve 21 from the bottom to the top is inclined toward the exhaust passage 2; axis of the intake valve 31 and the exhaust valve 21, respectively, perpendicular to the axis of the combustion chamber 5, and its point of intersection of the surface of the section, i.e. the axis of the intake valve 31 and exhaust valve axis 21 intersects the surface 5 of the combustion chamber, respectively, the point of intersection of the section, with the direction of the exhaust gas entering the combustion chamber adapted to reduce the resistance, increasing the power of gasoline.
In the present embodiment, the seat ring 31a inner end of said intake valve 31 and the seat ring 21a inner end of exhaust valve 21 and firing chamber face conformal; Right shape promptly adapts to shape; The end surface shape of the seat ring inner end of intake valve and the seat ring inner end of exhaust valve and firing chamber face shape adapt; Eliminate step; Reduce interference to air inlet and exhaust; Reduce resistance; Eliminate the sudden change of dead angle and shape, guarantee the abundant burning of mixed gas, improve petrol engine efficient.
In the present embodiment, said firing chamber face 5 forms bridge of the nose district between intake valve 31 and exhaust valve 21, and said bridge of the nose district is positioned at the width L of firing chamber face greater than 8mm; Suitably increase bridge of the nose district thickness, increase the ability of its opposing heat distortion amount, effectively improve the valve sealing performance, can effectively avoid the valve phenomenon that leaks air; Simultaneously, avoid the instantaneous interference that occurs between the intake and exhaust, guarantee fully burning, improve petrol engine power;
In the present embodiment, said gas-entered passageway 3 axis and exhaust passage 2 axis coplanes; Gas-entered passageway axis and exhaust passage axis are in same plane, are beneficial to the layout of valve and rocking arm.
In the present embodiment, the angle of said intake valve 31 and exhaust valve 21 and firing chamber face 5 vertical center lines is respectively 22.5 °, and said gas-entered passageway 3 tilts to the top with respect to the attachment face of cylinder head body 1 respectively with exhaust passage 2 from inside to outside; Further reduce the angle between inlet and exhaust valve and the intake and exhaust channel, reduce intake and exhaust resistance, simultaneously, make things convenient for the layout of intake and exhaust channel.
In the present embodiment, the seat ring 31a cylindrical of said intake valve 31 and the seat ring 21a cylindrical of exhaust valve 21 and firing chamber face 5 bottom margins are tangent; Increase the distance between intake valve 31 and the exhaust valve 21, and all adapt, intake and exhaust are not disturbed mutually, guarantee the power character and the Economy of petrol engine with the intake and exhaust streamline.
In the present embodiment, said intake valve 31 is respectively equipped with rocking arm with exhaust valve 21, as shown in the figure: the rocking arm 13 of intake valve 31, the rocking arm 11 of exhaust valve 21; The corresponding rocker arm bracket (being rocker arm bracket 8 and rocker arm bracket 12 among the figure) that is provided with rocking arm (rocking arm 13 and rocking arm 11) on the said cylinder head body 1; Said rocking arm (rocking arm 13 and rocking arm 11) is set with pitman arm shaft (pitman arm shaft 9 and pitman arm shaft 10) respectively; Said pitman arm shaft (pitman arm shaft 14 with pitman arm shaft 10) is being arranged at rocker arm bracket (rocker arm bracket 8 and rocker arm bracket 12) around the mode single-degree-of-freedom correspondence of self rotational; Two pitman arm shafts (pitman arm shaft 9 and pitman arm shaft 10) radially inwardly are obliquely installed to the top with respect to cylinder head body attachment face, radially are meant the cylinder head body radially; The angle of inclination of said pitman arm shaft (pitman arm shaft 9 and pitman arm shaft 10) is corresponding identical with the angle of inclination of intake valve 31 and exhaust valve 21; It is the lever construction of fulcrum that said rocking arm (rocking arm 13 and rocking arm 11) forms with pitman arm shaft (pitman arm shaft 94 and pitman arm shaft 10), forms tilting fixed rocking arm with pitman arm shaft; The pitman arm shaft that is obliquely installed can be adapted to the inclined valve structure and be adapted to the geometrical shape of composite sphere firing chamber; Be beneficial to and guarantee that rocking arm drives the harmony and the sealing of valve event; Fixed rocking arm is in running; The play of its all directions or rolling momentum are little; Can effectively reduce the rate of fault of rocking arm, reduce maintenance cost.
The reasonable Arrangement rocking arm is come in the position that is adapted to intake and exhaust, also is beneficial to guarantee to guarantee port timing valve timing, thereby improves performance and reduce discharging.
In this embodiment, said rocker seat (seat rocker arm 8 and 12) for the upward opening of the structure, said rocker shaft (rocker shaft 9 and the rocker arm shaft 10) corresponding to both ends rocker penetration Block (Block 8 and the rocker arm 12) on both sides of the opening and rotatable about its own axis with a rotatable manner (refer to the single degree of freedom with the rocker shaft 9 and the rocker arm shaft 10 is restricted axial degree of freedom, can be taken against the rocker arm shaft of the rocker arm, respectively, on both sides of the peripheral shoulder mount opening structure can be any of the prior art, and to limit axial movement of the circumferential direction of the slidable manner), said rocker ( rocker arm 13 and 11) in Block Rocker (Rocker Block 8 and Block Rocker 12) fixed to the inside of the opening rocker shaft (rocker shaft rocker shaft 9 and 10); said rocker seat ( Block 8 and the rocker arm 12) opening outwardly of the side of the split structure bearing structure shown in Figure 3, the rocker 8 of the opening side of the structure including outward gland 81a and the seat body 81 said gland between 81a and detachable seat body 81 is fixedly connected with screw connection diagram, also set for reducing friction bearing 101 (Block 8 and rocker arm 12 inwardly opening structure also set the side bearing); rocker seat 12 side opening structure outward opening with rocker 8 the same structure as the structure outward side; using split bearing structure facilitates the installation of the rocker shaft, and reduce friction area, increasing the flexibility of the rocker arm movement, simple and compact structure, saving space.
The invention also discloses a kind of petrol engine of using petrol engine inclined valve cylinder head; Petrol engine inclined valve cylinder head is installed on petrol engine; Said petrol engine is applied to motorcycle or universal machine, and universal machine comprises pump, blower fan, compressor, subtracts variable-speed motor, generator or the like.
Explanation is at last; Above embodiment is only unrestricted in order to technological scheme of the present invention to be described; Although the present invention is described in detail with reference to preferred embodiment; Those of ordinary skill in the art is to be understood that; Can make amendment or be equal to replacement technological scheme of the present invention; And not breaking away from the aim and the scope of technological scheme of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.

Claims (9)

1. petrol engine inclined valve cylinder head; Comprise cylinder head body and the gas-entered passageway, exhaust passage and the spark plug mounting hole that are arranged at the cylinder head body; This external surface of cylinder head is provided with radiating fin; The inboard firing chamber face that forms of cylinder head body; It is characterized in that: the corresponding intake valve that is provided with gas-entered passageway on the said cylinder head body; The corresponding exhaust valve that is provided with the exhaust passage, said intake valve by bottom to top to the gas-entered passageway tilt, exhaust valve by bottom to top to the exhaust passage tilt; Said intake valve axis and exhaust valve axis are respectively perpendicular to the tangent plane of firing chamber face and its crosspoint.
2. petrol engine inclined valve cylinder head according to claim 1 is characterized in that: the seat ring inner end of said intake valve and the seat ring inner end of exhaust valve and firing chamber face conformal.
3. petrol engine inclined valve cylinder head according to claim 2 is characterized in that: said firing chamber face forms bridge of the nose district between intake valve and exhaust valve, the width that said bridge of the nose district is positioned at the firing chamber face is greater than 8mm.
4. petrol engine inclined valve cylinder head according to claim 3 is characterized in that: said gas-entered passageway axis and exhaust passage axis coplane.
5. petrol engine inclined valve cylinder head according to claim 4; It is characterized in that: the angle of said intake valve and exhaust valve and firing chamber face vertical center line is respectively 22.5 °, and said gas-entered passageway and exhaust passage tilt to the top with respect to the attachment face of cylinder head body respectively from inside to outside.
6. the air-cooled cylinder head of petrol engine according to claim 5 is characterized in that: the seat ring cylindrical of said intake valve and the seat ring cylindrical of exhaust valve and firing chamber face bottom margin are tangent.
7. the air-cooled cylinder head of petrol engine according to claim 6; It is characterized in that: said intake valve and exhaust valve are respectively equipped with rocking arm; The corresponding rocker arm bracket that is provided with rocking arm on the said cylinder head body; Said rocking arm is set with pitman arm shaft; Said pitman arm shaft is being arranged at rocker arm bracket around the mode single-degree-of-freedom of self rotational; Two pitman arm shafts radially inwardly are obliquely installed to the top with respect to cylinder head body attachment face, and the angle of inclination of said pitman arm shaft is corresponding identical with the angle of inclination of intake valve and exhaust valve; It is the lever construction of fulcrum that said rocking arm forms with the pitman arm shaft.
8. the air-cooled cylinder head of petrol engine according to claim 7; It is characterized in that: said rocker arm bracket is hatch frame upwards; Said pitman arm shaft two ends correspondence penetrates the opening both sides of rocker arm bracket and cooperating around the mode of self rotational, the opening internal fixation that said rocking arm is positioned at rocker arm bracket is arranged at pitman arm shaft; The outside side of said rocker arm bracket hatch frame is split type bearing block structure, comprises gland and pedestal, detachable fixed connection between said gland and the pedestal.
9. an application rights requires the petrol engine of answering of the described petrol engine inclined valve of 1 to 8 arbitrary claim cylinder head, and it is characterized in that: petrol engine inclined valve cylinder head is installed on petrol engine.
CN201110061268A 2011-03-14 2011-03-14 Gasoline engine and inclined air valve cylinder head for same Pending CN102305126A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201110061268A CN102305126A (en) 2011-03-14 2011-03-14 Gasoline engine and inclined air valve cylinder head for same
PCT/CN2011/084765 WO2012122846A1 (en) 2011-03-14 2011-12-27 Gasoline engine inclined valve cylinder head and gasoline engine therewith

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201110061268A CN102305126A (en) 2011-03-14 2011-03-14 Gasoline engine and inclined air valve cylinder head for same

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CN102305126A true CN102305126A (en) 2012-01-04

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CN (1) CN102305126A (en)
WO (1) WO2012122846A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111237077A (en) * 2019-09-11 2020-06-05 浙江康思特动力机械有限公司 Cylinder cover with multiple cooling air channels
CN113818942A (en) * 2021-09-11 2021-12-21 重庆龙力动力设备有限公司 Valve actuating mechanism of gasoline engine

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CN1204004A (en) * 1997-06-25 1999-01-06 三菱重工业株式会社 Structure of overhead-valve internal combustion engine and manufacturing method for the same
CN2674130Y (en) * 2003-11-04 2005-01-26 金城集团有限公司 Cylinder head of four-stroke, water cooling engine
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111237077A (en) * 2019-09-11 2020-06-05 浙江康思特动力机械有限公司 Cylinder cover with multiple cooling air channels
CN111237077B (en) * 2019-09-11 2024-04-16 浙江康思特动力机械有限公司 Cylinder cover provided with multiple cooling air channels
CN113818942A (en) * 2021-09-11 2021-12-21 重庆龙力动力设备有限公司 Valve actuating mechanism of gasoline engine
CN113818942B (en) * 2021-09-11 2022-10-04 重庆龙力动力设备有限公司 Valve actuating mechanism of gasoline engine

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Application publication date: 20120104