CN102400726A - Double overhead camshaft - Google Patents

Double overhead camshaft Download PDF

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Publication number
CN102400726A
CN102400726A CN2011103833653A CN201110383365A CN102400726A CN 102400726 A CN102400726 A CN 102400726A CN 2011103833653 A CN2011103833653 A CN 2011103833653A CN 201110383365 A CN201110383365 A CN 201110383365A CN 102400726 A CN102400726 A CN 102400726A
Authority
CN
China
Prior art keywords
cam
double overhead
main shaft
cams
double
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
CN2011103833653A
Other languages
Chinese (zh)
Inventor
周联群
任士强
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CN2011103833653A priority Critical patent/CN102400726A/en
Publication of CN102400726A publication Critical patent/CN102400726A/en
Priority to PCT/MY2012/000230 priority patent/WO2013081444A1/en
Pending legal-status Critical Current

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Classifications

    • 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
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/047—Camshafts
    • 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
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/08—Shape of cams

Abstract

The invention relates to a double overhead camshaft. The double overhead camshaft comprises a main shaft, cams and bearings and is characterized in that: the cams are double overhead cams; a plurality of double overhead cams are arranged on the main shaft in pairs; the bearings are fixedly arranged between each pair of double overhead cams and at two ends of the main shaft through bearing fixing plates; each double overhead cam is provided with two arc-shaped convex heads which are axially symmetrical; and the arc-shaped convex heads of each cam are staggered by an angle according to the travel requirement. The double overhead camshaft has the advantages that: each cam is provided with the two convex heads and the corresponding valve can be opened and closed for two times when the cam rotates by a circle, so the opening/closing speed of the valve is doubled and the requirement of an engine using high-pressure fluid as power is met.

Description

The Double Tops camshaft
Technical field
The present invention relates to a kind of Double Tops camshaft, be used for high-pressure liquid as the time-oriented sequential control of the valve control apparatus of the motor of power to valve.
Background technique
The electric power that uses now in the world is mainly from coal, oil, rock gas etc., and is annual to millions of tons of CO of nature discharging 2, be one of guilty ashamed chief culprit who makes global greenhouse effect.Therefore the mankind are being faced with more and more serious environmental problem.
Do not have under the oil condition at the exhausting of the outage of power supply department, automobile gasoline, diesel generator, all followers all will stop acting.In addition, on the one hand, fossil resource non-renewable, the scarcity of oil, rock gas and water resource simultaneously; And on the other hand, along with constant development of economy, be becoming tight power supply day, the phenomenon of short of electricity is very severe.The traditional fuel generator exists use inconvenient, and use occasion is restricted, the problem that environmental pollution is serious
Therefore, the cleaning new energy system of development & construction certain scale is that the useful of energy consumption replenished, and further improves energy resource structure, also meets the requirement of China's energy sustainable development strategy.
For this reason; A kind of this motor needs the keying of valve to speed up with the motor appearance soon of high-pressure liquid as power, and a cam of existing camshaft has only a protruding top; Revolution is moving can only to make corresponding valve opening close once in a week, can not satisfy the requirement of this motor.
Summary of the invention
The present invention aims to provide a kind of Double Tops camshaft, has only a protruding top with a cam that solves existing camshaft, and revolution is moving can only to make corresponding valve opening close once in a week, can not satisfy the problem of the requirement of this motor.
Technological scheme of the present invention is: a kind of Double Tops camshaft; Comprise main shaft, cam and bearing; It is characterized in that; Described cam is the Double Tops cam, a plurality of Double Tops cam paired mounting on main shaft, between every pair of Double Tops cam and the two ends of main shaft all fixedly mount a bearing through bearing (setting) plate; This Double Tops cam is provided with two protruding tops of axisymmetric circular arc, and the protruding top of the circular arc of each cam requires to stagger an angle according to stroke.
Advantage of the present invention is: each cam is provided with two protruding tops, moving gas (liquid) the door open and close twice that can make correspondence a week of revolution, and the switching speed of valve doubles, and has satisfied with the requirement of high-pressure liquid as the motor of power.
Description of drawings
Fig. 1 is a perspective view of the present invention;
Fig. 2 is the cross section structure schematic representation of cam of the present invention (side) and main shaft.
Embodiment
Referring to Fig. 1 and Fig. 2; A kind of Double Tops camshaft of the present invention; Comprise main shaft 1, Double Tops cam 2 and bearing 3, a plurality of Double Tops cam 2 paired mounting on main shaft 1, between every pair of Double Tops cam 2 and the two ends of main shaft 1 all through bearing 3 of bearing (setting) plate 4 (with bolt 5) fixed installation.This Double Tops cam 2 is provided with two protruding tops of axisymmetric circular arc, and the protruding top of the circular arc of each Double Tops cam 2 requires to stagger an angle according to stroke.
The present invention correspondingly on Double Tops cam 2 installs a push rod when using, the top on the top of push rod through swing arm and valve inside is in transmission connection, and is used to control the switch of each gas (liquid).

Claims (1)

1. Double Tops camshaft; Comprise main shaft, cam and bearing, it is characterized in that described cam is the Double Tops cam; A plurality of Double Tops cam paired mounting on main shaft, between every pair of Double Tops cam and the two ends of main shaft all fixedly mount a bearing through bearing (setting) plate; This Double Tops cam is provided with two protruding tops of axisymmetric circular arc, and the protruding top of the circular arc of each cam requires to stagger an angle according to stroke.
CN2011103833653A 2011-11-28 2011-11-28 Double overhead camshaft Pending CN102400726A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN2011103833653A CN102400726A (en) 2011-11-28 2011-11-28 Double overhead camshaft
PCT/MY2012/000230 WO2013081444A1 (en) 2011-11-28 2012-08-16 Double-top camshaft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011103833653A CN102400726A (en) 2011-11-28 2011-11-28 Double overhead camshaft

Publications (1)

Publication Number Publication Date
CN102400726A true CN102400726A (en) 2012-04-04

Family

ID=45883323

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011103833653A Pending CN102400726A (en) 2011-11-28 2011-11-28 Double overhead camshaft

Country Status (2)

Country Link
CN (1) CN102400726A (en)
WO (1) WO2013081444A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE541922C2 (en) 2017-03-31 2020-01-07 Scania Cv Ab Four-stroke Internal Combustion Engine and thereto related Vehicle and Method

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2877752A (en) * 1957-09-03 1959-03-17 Harold G Schaller Double lobe cam shaft
FR2767154A1 (en) * 1997-08-05 1999-02-12 Renault Balancing device for overhead camshaft
CN101120157A (en) * 2005-02-17 2008-02-06 株式会社捷太格特 Camshaft device and method of assembling camshaft device
CN201202501Y (en) * 2008-06-04 2009-03-04 安徽江淮汽车股份有限公司 1.3 L petrol engine valve mechanism
DE102008041934A1 (en) * 2008-09-10 2010-03-11 Robert Bosch Gmbh Cam shaft for use in e.g. radial piston pump, of fuel injecting mechanism of internal-combustion engine of motor vehicle, has shaft provided with cam, where cam comprises cavity in region of cam lobe
CN201635782U (en) * 2009-12-30 2010-11-17 浙江吉利汽车研究院有限公司 Direct-injection gasoline engine camshaft
CN202325724U (en) * 2011-11-28 2012-07-11 周联群 Double-top camshaft

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0828211A (en) * 1994-07-18 1996-01-30 Musashi Seimitsu Ind Co Ltd Cam shaft
KR19980084935A (en) * 1997-05-27 1998-12-05 김영귀 Camshaft of car with two lobes
US20080196681A1 (en) * 2007-02-19 2008-08-21 Mechadyne Plc Mounting of an scp camshaft on an engine
DE102007024092A1 (en) * 2007-05-22 2008-11-27 Mahle International Gmbh camshaft

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2877752A (en) * 1957-09-03 1959-03-17 Harold G Schaller Double lobe cam shaft
FR2767154A1 (en) * 1997-08-05 1999-02-12 Renault Balancing device for overhead camshaft
CN101120157A (en) * 2005-02-17 2008-02-06 株式会社捷太格特 Camshaft device and method of assembling camshaft device
CN201202501Y (en) * 2008-06-04 2009-03-04 安徽江淮汽车股份有限公司 1.3 L petrol engine valve mechanism
DE102008041934A1 (en) * 2008-09-10 2010-03-11 Robert Bosch Gmbh Cam shaft for use in e.g. radial piston pump, of fuel injecting mechanism of internal-combustion engine of motor vehicle, has shaft provided with cam, where cam comprises cavity in region of cam lobe
CN201635782U (en) * 2009-12-30 2010-11-17 浙江吉利汽车研究院有限公司 Direct-injection gasoline engine camshaft
CN202325724U (en) * 2011-11-28 2012-07-11 周联群 Double-top camshaft

Also Published As

Publication number Publication date
WO2013081444A1 (en) 2013-06-06

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Application publication date: 20120404