CN101161995B - Variable valve lift follower for vehicle - Google Patents

Variable valve lift follower for vehicle Download PDF

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Publication number
CN101161995B
CN101161995B CN2007100065129A CN200710006512A CN101161995B CN 101161995 B CN101161995 B CN 101161995B CN 2007100065129 A CN2007100065129 A CN 2007100065129A CN 200710006512 A CN200710006512 A CN 200710006512A CN 101161995 B CN101161995 B CN 101161995B
Authority
CN
China
Prior art keywords
described
access path
variable valve
contacting part
body
Prior art date
Application number
CN2007100065129A
Other languages
Chinese (zh)
Other versions
CN101161995A (en
Inventor
吴廷翰
Original Assignee
现代自动车株式会社
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
Priority to KR1020060098272 priority Critical
Priority to KR1020060098272A priority patent/KR100867842B1/en
Priority to KR10-2006-0098272 priority
Application filed by 现代自动车株式会社 filed Critical 现代自动车株式会社
Publication of CN101161995A publication Critical patent/CN101161995A/en
Application granted granted Critical
Publication of CN101161995B publication Critical patent/CN101161995B/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12Transmitting gear between valve drive and valve
    • F01L1/18Rocking arms or levers
    • F01L1/185Overhead end-pivot rocking arms
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L13/00Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/0015Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
    • F01L13/0036Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/20Adjusting or compensating clearance
    • F01L1/22Adjusting or compensating clearance automatically, e.g. mechanically
    • F01L1/24Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically
    • F01L1/2405Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically by means of a hydraulic adjusting device located between the cylinder head and rocker arm
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12Transmitting gear between valve drive and valve
    • F01L1/18Rocking arms or levers
    • F01L2001/186Split rocking arms, e.g. rocker arms having two articulated parts and means for varying the relative position of these parts or for selectively connecting the parts to move in unison
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2305/00Valve arrangements comprising rollers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2820/00Details on specific features characterising valve gear arrangements
    • F01L2820/01Absolute values

Abstract

A variable valve lift follower for a vehicle includes an outer body receiving a rotational force from a high lift cam; an inner body with a first end portion hinge-connected with the outer body, receiving a rotational force from a low lift cam; a hydraulic lash adjuster (HLA) contact portion for supplying oil to the first end portion of the inner body; a valve contact portion on a second end of the inner body; and a knock pin on the top of the valve contact portion, connecting the outer body to the inner body during high lift.

Description

The variable valve lift follower of vehicle

The cross reference of related application

The application based on and require the korean application submitted on October 10th, 2006 number for the korean application of 10-2006-0098272 as preference, quote its whole disclosures as a reference at this.

Technical field

The present invention relates to a kind of variable valve lift follower of vehicle, more specifically relate to the variable valve lift follower that a kind of valve contacting part has the vehicle of ejector pin.

Background technique

Usually, because the rotating speed of internal-combustion engine changes between the 000rpm, so the variations in flow in the motor is quite big at 500rpm to 6.Controlling in the reciprocating internal combustion engine of air and waste gas flow by opening and closing suction valve and outlet valve, big power when running at high speed for acquisition, be necessary to improve charging efficiency by the open time of lengthening suction valve, this makes with the overlapping change of outlet valve big, thereby the rotary state of motor becomes very poor when low speed driving.Therefore, be necessary to make this overlapping remaining in the prespecified range.

People have used variable valve lift system, the output performance that opening by regulating suction valves and outlet valve with the various serviceability of motor and shut-in time are improved motor.

Be provided with the valve contacting part at variable valve lift follower inside body one side bottom, opposite side is provided with hydraulic lash adjuster (HLA) contacting part.

Locking plate body connected to one another and lockplate are installed on an end of inside body.

Locking plate body one end is connected with lockplate, and the other end of locking plate body contacts with piston.

Owing to be arranged on HLA one side as locking systems such as lockplates, so other parts of lift range variable concentrate in the valve contacting part.Therefore, the effective mass of driven member increases the inertial mass of valve motion, thereby influences the power performance of valve mechanism.

Disclosed above-mentioned information just is used for strengthening the understanding to background technique of the present invention in background technique part, therefore can comprise the information that does not constitute the prior art that national those of ordinary skills have known.

Summary of the invention

The invention provides a kind of variable valve lift follower of vehicle, comprising: outer body, the rotating force of reception high-lift cam; Interior body, one end and outer body are hinged, receive the rotating force of low lift cams; Hydraulic lash adjuster (HLA) contacting part is with the end of body in the oil supply; Valve contacting part on the interior body the other end; Ejector pin is arranged in the top of valve contacting part, connects outer body and interior body in the high lift process.

In the example mode of execution, variable valve lift follower also comprises the oil circuit that connects HLA contacting part and ejector pin, and oil pressure is transferred to ejector pin from the HLA contacting part.

In another example mode of execution, oil circuit comprises first access path that is connected to the HLA contacting part, be formed on second access path of the first access path substantially horizontal with oil pressure and be transferred to the 3rd access path of ejector pin from second access path, wherein the first and the 3rd access path tilts.

Can also oil supply hole be set at an end of second access path, on oil supply hole, also can connect removable lid.

Description of drawings

Fig. 1 is the perspective view of describing according to the variable valve lift system of one embodiment of the present invention;

Fig. 2 shows the perspective view according to the variable valve lift follower of one embodiment of the present invention;

Fig. 3 shows the perspective view according to the interior body of one embodiment of the present invention;

Fig. 4 is the worm's eye view of Fig. 3.

Embodiment

Next will be described in detail with reference to the attached drawings preferred implementation of the present invention.

In some embodiments, variable valve lift follower comprises three cams of each valve, according to the opening of engine condition by cam gear rotating force control valve.In low lift cams 10 and two high-lift cams 11 in a row arrange.

The ejector pin that is formed on valve contacting part 51 tops with the HLA23 reversed arrangement is along the longitudinal movement, and so that interior body 54 and outer body 55 are connected to each other, thereby produces high lift at this.

The bottom of body 54 1 sides in the HLA contacting part 50 of body 54 was arranged in oil offered, the bottom of body 54 opposite sides in valve contacting part 51 is arranged on, ejector pin is arranged in the top of valve contacting part 51.

Ejector pin is arranged on the other end of interior body 54, so that oil pressure effect lower edge fore-and-aft direction (based on outer body vertically) move, hinge pin 56 is arranged on the end of interior body 54, the end of outer body 55 and interior body 54 is hinged each other by it, thereby allows the other end of outer body 55 independently to rotate.

Because ejector pin moves under the oil pressure effect, thus oil circuit 52 is set with connection HLA contacting part 50 and the cylindrical shell 53 that comprises ejector pin, thereby will be supplied to ejector pin by the oil that HLA contacting part 50 is introduced.

Oil circuit 52 comprises that the first access path 52a, the along continuous straight runs that connect HLA contacting part 50 form and fluid is connected to the second access path 52b on the first access path 52a and the second access path 52b is connected to the 3rd access path 52c on the cylindrical shell 53.

The first and the 3rd access path 52a and 52c tilt.Path 52a and 52c can be with various angle tilts to avoid the interference of external component.Extend to the end that outside oil supply hole 57 is arranged in the second access path 52b, lid is connected on the oil supply hole 57 removably.

Operation according to the variable valve lift follower of one embodiment of the present invention will be described now.

(1) when using high lift: in during high speed at full capacity, oil is in HLA contacting part 50 is incorporated in the body 54, supply to the first access path 52a of oil circuit from HLA contacting part 50 again, and move to the second and the 3rd access path 52b and 52c, thereby oil pressure is transferred to ejector pin in the cylindrical shell 53.

Subsequently, under the oil pressure effect ejector pin is stretched out from interior body 54, the rotating force of high-lift cam 11 sends ejector pin to when being rotated down in the other end, thereby becomes the high lift state.

(2) when using low lift: when discharge charges into oily in the cylindrical shell during the low speed in sub load in, ejector pin turns back to interior body 54 inside, when moving to HLA contacting part 50 from oil circuit 52 and being discharged to HLA23, outer body 55 and interior body 54 are separated from one another with independent rotation.Valve is only operated by interior body 54, thereby becomes low lift state.

The present invention is by being provided with the ejector pin that connects outer body 55 and interior body 54, can reducing the stress that is brought by valve spring and rubbing to increase fuel efficiency and engine performance on valve contacting part top.By the oil circuit 52 of its reception, oil pressure is transferred to ejector pin from the oil of HLA23.

As mentioned above, according to variable valve lift follower of the present invention, receive from the oily of HLA and oil pressure is transferred to the oil circuit of ejector pin by the ejector pin that connects outer body and interior body being set at valve contacting part top and forming through it, can reduce the effective mass of valve and reduce the stress and the friction of valve spring, thereby increase fuel efficiency and engine performance.

Although the example mode of execution the present invention in conjunction with the actual use of considering at present is described, but will be appreciated that the present invention is not limited to mode of execution disclosed herein, on the contrary, but should comprise various modifications and equality unit in claim essence and the scope.

Claims (4)

1. the variable valve lift follower of a vehicle comprises:
Outer body is configured to receive the rotating force of high-lift cam;
Interior body comprises the first end hinged with described outer body, is configured to receive the rotating force of low lift cams;
Hydraulic lash adjuster (HLA) contacting part, be configured to oil be supplied to described in the described first end of body; With
The valve contacting part is arranged on second end of described interior body;
Wherein, described variable valve lift follower also comprises:
Ejector pin is arranged on the top of described valve contacting part, be configured in the high lift process, described outer body is connected to described on the body.
2. variable valve lift follower as claimed in claim 1 comprises that also fluid connects the oil circuit of described HLA contacting part and described ejector pin.
3. variable valve lift follower as claimed in claim 2, wherein said oil circuit comprises first access path that is connected to described HLA contacting part, second access path that is connected to described first access path, with the 3rd access path that described second access path is connected to described ejector pin, the wherein said first and the 3rd access path tilts, the described second access path basic horizontal.
4. variable valve lift follower as claimed in claim 3 also comprises the oil supply hole on the end of described second access path, and is connected the lid on the described oil supply hole removably.
CN2007100065129A 2006-10-10 2007-02-01 Variable valve lift follower for vehicle CN101161995B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1020060098272 2006-10-10
KR1020060098272A KR100867842B1 (en) 2006-10-10 2006-10-10 Various valve lift follower for vehicle
KR10-2006-0098272 2006-10-10

Publications (2)

Publication Number Publication Date
CN101161995A CN101161995A (en) 2008-04-16
CN101161995B true CN101161995B (en) 2011-07-20

Family

ID=39185095

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2007100065129A CN101161995B (en) 2006-10-10 2007-02-01 Variable valve lift follower for vehicle

Country Status (4)

Country Link
US (1) US20080083386A1 (en)
KR (1) KR100867842B1 (en)
CN (1) CN101161995B (en)
DE (1) DE102007011834A1 (en)

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US9581058B2 (en) 2010-08-13 2017-02-28 Eaton Corporation Development of a switching roller finger follower for cylinder deactivation in internal combustion engines
US10087790B2 (en) 2009-07-22 2018-10-02 Eaton Corporation Cylinder head arrangement for variable valve actuation rocker arm assemblies
US9016252B2 (en) 2008-07-22 2015-04-28 Eaton Corporation System to diagnose variable valve actuation malfunctions by monitoring fluid pressure in a hydraulic lash adjuster gallery
US9194261B2 (en) 2011-03-18 2015-11-24 Eaton Corporation Custom VVA rocker arms for left hand and right hand orientations
US9291075B2 (en) 2008-07-22 2016-03-22 Eaton Corporation System to diagnose variable valve actuation malfunctions by monitoring fluid pressure in a control gallery
US9938865B2 (en) 2008-07-22 2018-04-10 Eaton Corporation Development of a switching roller finger follower for cylinder deactivation in internal combustion engines
US9885258B2 (en) 2010-03-19 2018-02-06 Eaton Corporation Latch interface for a valve actuating device
US10415439B2 (en) 2008-07-22 2019-09-17 Eaton Intelligent Power Limited Development of a switching roller finger follower for cylinder deactivation in internal combustion engines
US9874122B2 (en) 2010-03-19 2018-01-23 Eaton Corporation Rocker assembly having improved durability
US8915225B2 (en) 2010-03-19 2014-12-23 Eaton Corporation Rocker arm assembly and components therefor
US9284859B2 (en) 2010-03-19 2016-03-15 Eaton Corporation Systems, methods, and devices for valve stem position sensing
US9228454B2 (en) 2010-03-19 2016-01-05 Eaton Coporation Systems, methods and devices for rocker arm position sensing
US9708942B2 (en) 2010-03-19 2017-07-18 Eaton Corporation Rocker arm assembly and components therefor
EP2839124A4 (en) * 2012-04-20 2016-03-16 Eaton Corp Rocker assembly having improved durability
CN102953777B (en) * 2012-10-24 2015-07-08 上海交通大学 Inlet pressure control type camshaft device
CN102953780B (en) * 2012-10-24 2015-07-08 上海交通大学 Exhaust pressure control type camshaft device
USD750670S1 (en) 2013-02-22 2016-03-01 Eaton Corporation Rocker arm
CN105121090A (en) 2014-03-03 2015-12-02 伊顿公司 Valve actuating device and method of making same
US10472998B2 (en) * 2018-02-16 2019-11-12 Delphi Technologies Ip Limited Switchable rocker arm with lash adjustment

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US4844023A (en) * 1987-01-08 1989-07-04 Honda Giken Kogyo Kabushiki Kaisha Valve operating device for internal combustion engine
DE10155825A1 (en) * 2001-11-14 2003-05-22 Ina Schaeffler Kg Rocker arm used in a valve gear of an internal combustion engine comprises an outer lever having an inner lever positioned between its arms which pivot relative to each other
EP1446562A1 (en) * 2001-11-14 2004-08-18 Jens Artmann Drag lever of a valve mechanism in an internal combustion engine
WO2004094791A1 (en) * 2003-04-23 2004-11-04 Ina-Schaeffler Kg Rocker arm of a valve gear of a combustion engine
CN1590717A (en) * 2003-07-23 2005-03-09 伊顿公司 Valve guide for rocker arm assembly

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DE102005053596A1 (en) * 2005-11-10 2007-05-16 Schaeffler Kg Switchable drag lever of a valve train of an internal combustion engine
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Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4844023A (en) * 1987-01-08 1989-07-04 Honda Giken Kogyo Kabushiki Kaisha Valve operating device for internal combustion engine
DE10155825A1 (en) * 2001-11-14 2003-05-22 Ina Schaeffler Kg Rocker arm used in a valve gear of an internal combustion engine comprises an outer lever having an inner lever positioned between its arms which pivot relative to each other
EP1446562A1 (en) * 2001-11-14 2004-08-18 Jens Artmann Drag lever of a valve mechanism in an internal combustion engine
WO2004094791A1 (en) * 2003-04-23 2004-11-04 Ina-Schaeffler Kg Rocker arm of a valve gear of a combustion engine
CN1590717A (en) * 2003-07-23 2005-03-09 伊顿公司 Valve guide for rocker arm assembly

Also Published As

Publication number Publication date
KR100867842B1 (en) 2008-11-10
DE102007011834A1 (en) 2008-04-17
KR20080032726A (en) 2008-04-16
US20080083386A1 (en) 2008-04-10
CN101161995A (en) 2008-04-16

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