CN103061900A - Variable-time-duration gas distribution driving mechanism of engine - Google Patents

Variable-time-duration gas distribution driving mechanism of engine Download PDF

Info

Publication number
CN103061900A
CN103061900A CN201210567235XA CN201210567235A CN103061900A CN 103061900 A CN103061900 A CN 103061900A CN 201210567235X A CN201210567235X A CN 201210567235XA CN 201210567235 A CN201210567235 A CN 201210567235A CN 103061900 A CN103061900 A CN 103061900A
Authority
CN
China
Prior art keywords
phase
variable
cam
driving mechanism
gear
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.)
Granted
Application number
CN201210567235XA
Other languages
Chinese (zh)
Other versions
CN103061900B (en
Inventor
任飞
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.)
Mianyang Xinchen Power Machinery Co Ltd
Original Assignee
Mianyang Xinchen Power Machinery 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 Mianyang Xinchen Power Machinery Co Ltd filed Critical Mianyang Xinchen Power Machinery Co Ltd
Priority to CN201210567235.XA priority Critical patent/CN103061900B/en
Publication of CN103061900A publication Critical patent/CN103061900A/en
Application granted granted Critical
Publication of CN103061900B publication Critical patent/CN103061900B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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

Landscapes

  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Valve Device For Special Equipments (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Abstract

The invention aims at solving the problems that two gas inlet valves of a gas distribution driving mechanism in the prior art are opened and closed at the same time, opening time duration of the gas valves cannot be adjusted in the engine operation process, and the like, and provides a variable-time-duration gas distribution driving mechanism of an engine. The variable-time-duration gas distribution driving mechanism comprises a fixed-phase cam, a variable-phase cam, a fixed-phase spline drive shaft, a variable-phase gear drive shaft, a phase shifter, a variable-phase gear and a variable-phase drive gear. The fixed-phase cam is installed on the fixed-phase spline drive shaft through a spline sleeve, the variable-phase cam and the variable-phase gear are coaxially installed on a connecting sleeve, and the variable-phase cam and the fixed-phase cam are sleeved on the fixed-phase spline drive shaft at interval. The variable-time-duration gas distribution driving mechanism has the advantages of being capable of adjusting the opening time duration in the engine operation process, namely adjusting combustion compression ratio, achieving linear adjustment of the compression ratio, effectively improving the utilization rate of engine fuel, and finally achieving the purposes of saving energy, reducing emission and improving power per liter. In addition, the variable-time-duration gas distribution driving mechanism further has the advantages of being easy to arrange, high in reliability and the like.

Description

Engine variable duration distribution driving mechanism
Technical field
The present invention relates to a kind of engines distribution duration actuation techniques, specially refer to a kind of engine variable duration distribution driving mechanism.
Background technique
Lot of experiments and theoretical Calculation Verification are bright, in the engine operation speed range, improve compression ratio in the middle and slow speed of revolution zone, can effectively improve the utilization ratio of motor fuel.But at high speed area, high compression ratio can cause pinking to occur, the infringement motor.According to the difference of rotating speed, the compression ratio of dynamic adjustments motor makes it at high speed area, suitably reduces compression ratio; In slow-speed of revolution section, suitably improve compression ratio, the generation of the abominable harm such as pinking has namely been avoided in final realization, can greatly improve again the combustion efficiency of slow-speed of revolution section, and overall realization reduces oil consumption, improves the purpose of power per liter.
Be provided with the motor of two and above intake valve for overhead distribution driving mechanism and every cylinder, the prior art distribution driving mechanism adopts the unlatching of camshaft actuated valve or closes, be provided with two and the above cam that phase place is identical, molded line is identical on the top of every cylinder, control respectively the simultaneously opening and closing of two intake valves.Its valve opening close moment determines by cam phase, and the duration of valve opening is determined by cam profile, can't adjust in engine operation process.Obviously, the prior art distribution driving mechanism exists the simultaneously opening and closing of two intake valves, and the duration of valve opening such as can't regulate at the problem in engine operation process.
Summary of the invention
Be to solve the simultaneously opening and closing of two intake valves that the prior art distribution driving mechanism exists, and the duration of valve opening such as can't regulate at the problem in engine operation process, the present invention proposes a kind of engine variable duration distribution driving mechanism.Engine variable duration distribution driving mechanism of the present invention comprises phase bit cam, covert position cam, phase bit spline live axle, covert position gear drive axle, phase shifter, covert position gear and covert position actuation gear; The phase bit cam is installed on the phase bit spline live axle by spline housing, and phase bit spline live axle is fixedly connected with air inlet timing drive wheel; Covert position cam with covert gear is coaxial is installed on the connecting sleeve, and be contained on the phase bit spline live axle with directed position cam spacer sleeve, covert position gear drive axle is in transmission connection by phase shifter and phase bit spline live axle, and is provided with covert position actuation gear at the corresponding position of covert position gear.
Further, the internal diameter of the connecting sleeve of the coaxial installation of engine variable duration distribution driving mechanism of the present invention covert position cam and covert position gear and the maximum outside diameter of phase bit spline live axle are complementary.
The useful technique effect of engine variable duration distribution driving mechanism of the present invention is can be in engine operation process, adjust the unlatching duration of valve, namely adjust the burning compression ratio, realize the linearly adjust of compression ratio, the utilization ratio of Effective Raise motor fuel finally reaches energy-saving and emission-reduction, improves the purpose of power per liter.And, also have and arrange relatively easy and reliability high.
Description of drawings
Accompanying drawing 1 is the schematic three dimensional views of prior art distribution driving mechanism camshaft;
Accompanying drawing 2 is schematic three dimensional views of engine variable duration distribution driving mechanism of the present invention;
Accompanying drawing 3 is schematic three dimensional views of engine variable duration distribution driving mechanism phase bit cam of the present invention and the cam assembling of covert position.
Below in conjunction with the drawings and specific embodiments the directed roller tappet of engine variable duration distribution driving mechanism of the present invention is further described.
Embodiment
Accompanying drawing 1 is the schematic three dimensional views of prior art distribution driving mechanism camshaft, as seen from the figure, the prior art distribution driving mechanism adopts the unlatching of camshaft actuated valve or closes, be provided with two and the above cam that phase place is identical, molded line is identical on the top of every cylinder, control respectively the simultaneously opening and closing of two intake valves.Its valve opening close moment determines by cam phase, and the duration of valve opening is determined by cam profile, can't adjust in engine operation process.Obviously, the prior art distribution driving mechanism exists the simultaneously opening and closing of two intake valves, and the duration of valve opening such as can't regulate at the problem in engine operation process.
Accompanying drawing 2 is schematic three dimensional views of engine variable duration distribution driving mechanism of the present invention, accompanying drawing 3 is schematic three dimensional views of engine variable duration distribution driving mechanism phase bit cam of the present invention and the cam assembling of covert position, among the figure, 1 is the phase bit cam, and 2 is covert position cam, 3 is phase bit spline live axle, 4 is covert position gear drive axle, and 5 is phase shifter, and 6 is covert position gear, 7 is covert position actuation gear, and 8 are air inlet timing drive wheel.As seen from the figure, engine variable duration distribution driving mechanism of the present invention comprises phase bit cam 1, covert position cam 2, phase bit spline live axle 3, covert position gear drive axle 4, phase shifter 5, covert position gear 6 and covert position actuation gear 7; Phase bit cam 1 is installed on the phase bit spline live axle 3 by spline housing, and phase bit spline live axle 3 is fixedly connected with air inlet timing drive wheel 8; Covert position cam 2 and covert position gear 6 coaxial being installed on the connecting sleeve, and be contained on the phase bit spline live axle 3 with directed position cam 1 spacer sleeve, covert position gear drive axle 4 is in transmission connection by phase shifter 5 and phase bit spline live axle 3, and is provided with covert position actuation gear 7 at the corresponding position of covert position gear 6.Engine variable duration distribution driving mechanism phase bit cam of the present invention and covert position cam are driven by phase bit spline live axle and covert position gear drive axle respectively, covert position gear drive axle is in transmission connection by phase shifter and phase bit spline live axle, adjust the phase difference of two live axles by phase shifter, to realize there is certain deflection angle between phase bit cam and the covert position cam.It is controlled that phase shifter is adjusted the phase difference linearity, and then the deflection angle linearity is controlled between two cams.
Directly determine the moment of the opening and closing of valve because of the phase place of cam, owing to having certain deflection angle between the phase bit cam of engine variable duration distribution driving mechanism of the present invention and the covert position cam, after the cam-actuated valve opening of phase bit a period of time, covert position cam rotates to the valve opening position of driving, is unlocked by the valve of its driving; And after the cam-actuated valve-closing of phase bit a period of time, the cam-actuated valve in covert position is just closed.Wherein, the duration from the cam-actuated valve opening of phase bit to the covert cam-actuated valve-closing in position is the duration that whole cylinder intake passage is opened.Obviously, change the phase bit cam of each cylinder and the relative deflection angle between the cam of covert position, namely change the phase place of phase shifter, just can change the duration that each cylinder intake passage is opened.In the motor normal course of operation, the normal valve timing of motor passes to phase bit spline live axle by air inlet timing drive wheel, phase bit spline live axle by gear transmission to phase shifter, after phase shifter is adjusted to desired phase, valve timing is passed to covert position gear drive axle, covert position gear drive axle is passed covert position cam by covert position actuation gear and covert position gear, be installed on the connecting sleeve and be contained on the phase bit spline live axle with a directed cam spacer sleeve and covert position cam and covert position gear are coaxial, and the internal diameter of the connecting sleeve of coaxial installation covert position cam and covert position gear and the maximum outside diameter of phase bit spline live axle are complementary, and can realize having variable controlled deflection angle between phase bit cam and the covert position cam.Usually, when intake valve with when exhaust valve cuts out fully and piston is moved to top dead center by lower dead center, for the four stroke engine circulation, namely switch to compression stroke by intake stroke.Therefore, realized that finally the zero hour of compression stroke is controlled, namely the linearity of compression ratio can be regulated.
Obviously, the useful technique effect of engine variable duration distribution driving mechanism of the present invention is can be in engine operation process, adjust the unlatching duration of valve, namely adjust the burning compression ratio, realize the linearly adjust of compression ratio, the utilization ratio of Effective Raise motor fuel finally reaches energy-saving and emission-reduction, improves the purpose of power per liter.And, also have and arrange relatively easy and reliability high.

Claims (2)

1. engine variable duration distribution driving mechanism is characterized in that: this mechanism comprises phase bit cam, covert position cam, phase bit spline live axle, covert position gear drive axle, phase shifter, covert position gear and covert position actuation gear; The phase bit cam is installed on the phase bit spline live axle by spline housing, and phase bit spline live axle is fixedly connected with air inlet timing drive wheel; Gear is coaxial covert position cam and covert position is installed on the connecting sleeve, and be contained on the phase bit spline live axle with directed position cam spacer sleeve, covert position gear drive axle is in transmission connection by phase shifter and phase bit spline live axle, and is provided with covert position actuation gear at the corresponding position of covert position gear.
2. described engine variable duration distribution driving mechanism according to claim 1, it is characterized in that: the internal diameter of the connecting sleeve of coaxial installation covert position cam and covert position gear and the maximum outside diameter of phase bit spline live axle are complementary.
CN201210567235.XA 2012-12-24 2012-12-24 Engine variable duration distribution driving mechanism Active CN103061900B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210567235.XA CN103061900B (en) 2012-12-24 2012-12-24 Engine variable duration distribution driving mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210567235.XA CN103061900B (en) 2012-12-24 2012-12-24 Engine variable duration distribution driving mechanism

Publications (2)

Publication Number Publication Date
CN103061900A true CN103061900A (en) 2013-04-24
CN103061900B CN103061900B (en) 2015-10-14

Family

ID=48104730

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210567235.XA Active CN103061900B (en) 2012-12-24 2012-12-24 Engine variable duration distribution driving mechanism

Country Status (1)

Country Link
CN (1) CN103061900B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104233592A (en) * 2014-10-13 2014-12-24 湖州现代纺织机械有限公司 Cam regulation mechanism
CN104832296A (en) * 2015-05-14 2015-08-12 奇瑞汽车股份有限公司 Valve stroke adjusting device of engine
CN106369138A (en) * 2016-09-13 2017-02-01 中国北方发动机研究所(天津) Camshaft gear with phase adjustment function, valve timing structure and assembling method
CN107288702A (en) * 2017-07-15 2017-10-24 高焱 A kind of internal combustion engine variable compression ratio device
US10557448B2 (en) 2014-09-10 2020-02-11 Delphi Technologies Ip Limited Driveshaft assembly with indexing means

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4158507B2 (en) * 2002-12-05 2008-10-01 トヨタ自動車株式会社 Valve drive system for internal combustion engine
CN1965150B (en) * 2004-06-03 2011-04-20 丰田自动车株式会社 Valve gear for multi-cylinder internal combustion engine
JP4414871B2 (en) * 2004-12-03 2010-02-10 トヨタ自動車株式会社 Variable valve mechanism for internal combustion engine
US7849829B2 (en) * 2008-03-12 2010-12-14 Gm Global Technology Operations, Inc. Concentric camshaft with independent bearing surface for floating lobes
GB2472054B (en) * 2009-07-23 2013-02-27 Mechadyne Plc Phaser assembly for an internal combustion engine

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10557448B2 (en) 2014-09-10 2020-02-11 Delphi Technologies Ip Limited Driveshaft assembly with indexing means
CN104233592A (en) * 2014-10-13 2014-12-24 湖州现代纺织机械有限公司 Cam regulation mechanism
CN104233592B (en) * 2014-10-13 2016-05-11 湖州现代纺织机械有限公司 One cam adjustment mechanism
CN104832296A (en) * 2015-05-14 2015-08-12 奇瑞汽车股份有限公司 Valve stroke adjusting device of engine
CN106369138A (en) * 2016-09-13 2017-02-01 中国北方发动机研究所(天津) Camshaft gear with phase adjustment function, valve timing structure and assembling method
CN107288702A (en) * 2017-07-15 2017-10-24 高焱 A kind of internal combustion engine variable compression ratio device
CN107288702B (en) * 2017-07-15 2019-07-12 高焱 A kind of internal combustion engine variable compression ratio device

Also Published As

Publication number Publication date
CN103061900B (en) 2015-10-14

Similar Documents

Publication Publication Date Title
EP2653703B1 (en) Internal combustion engine with cylinders which can be deactivated, in which the deactivated cylinders are used as pumps for recirculating exhaust gases into the active cylinders, and method for controlling this engine
CN102444440B (en) Double-mode type full-variable valve driving system for four-cylinder internal combustion engine
CN103061900B (en) Engine variable duration distribution driving mechanism
US9222429B2 (en) Engine control system having a cam phaser
US7841324B2 (en) Breathing for an internal combustion engine
CN101446214B (en) Continuously adjustable mechanical hydraulic valve lift device
CN105909332A (en) Stepless valve rocker mechanism with variable lift and corresponding valve device
US8418663B2 (en) Cam actuation mechanism with application to a variable-compression internal-combustion engine
CN111894695B (en) Camshaft-free valve driving mechanism based on rotating motor driving
CN102444441A (en) Double-mode type full-variable valve driving system for six-cylinder internal combustion engine
CN204716322U (en) Continuously variable timing device
CN108625924B (en) Valve timing adjusting mechanism
CN201953425U (en) Engine VVT (Variable Valve Timing) mechanism
CN102168615B (en) Control method of EGR (exhaust gas recirculation) control system of engine
CN202560340U (en) Continuous variable air valve device for hydraulic type engine
CN202176410U (en) Novel high-efficiency energy-saving internal-combustion engine
CN214887273U (en) Valve mechanism of engine
CN203626912U (en) Engine cylinder shutoff mechanism
CN214944476U (en) Hydraulic variable valve control mechanism of engine
CN117569890B (en) Engine and valve mechanism thereof
CN203835482U (en) Combination valve mechanism of engine
CN213510771U (en) Electro-hydraulic type fully-variable valve mechanism based on distribution cam
CN207212424U (en) A kind of variable engine breathing cam of cam profile
CN201496115U (en) Continuous variable gas distribution control system of spark ignition engine
CN107313828B (en) Motor-controlled hydraulic driving variable valve mechanism

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
PE01 Entry into force of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of invention: Engine variable time valve drive mechanism

Effective date of registration: 20220622

Granted publication date: 20151014

Pledgee: Mianyang Rural Commercial Bank Co.,Ltd.

Pledgor: Mianyang Xinchen Engine Co.,Ltd.

Registration number: Y2022510000168