JPH06331003A - Cam follower - Google Patents
Cam followerInfo
- Publication number
- JPH06331003A JPH06331003A JP5142502A JP14250293A JPH06331003A JP H06331003 A JPH06331003 A JP H06331003A JP 5142502 A JP5142502 A JP 5142502A JP 14250293 A JP14250293 A JP 14250293A JP H06331003 A JPH06331003 A JP H06331003A
- Authority
- JP
- Japan
- Prior art keywords
- roller
- peripheral surface
- rollers
- support shaft
- cam
- 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
Links
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
- F01L2305/00—Valve arrangements comprising rollers
-
- 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
- F01L2810/00—Arrangements solving specific problems in relation with valve gears
- F01L2810/02—Lubrication
Landscapes
- Valve-Gear Or Valve Arrangements (AREA)
- Gears, Cams (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】この発明は、カム従動子、例えば
エンジンの弁駆動用のカム従動子に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cam follower, for example, a cam follower for driving a valve of an engine.
【0002】[0002]
【従来の技術】図4に示すようなエンジンにおいてカム
Cに接するロッカーアームRのローラ1は、従来の技術
においては、図5に示すようにロッカーアームRに金属
製の支軸2で回転自在に支持されて構成されている。2. Description of the Related Art In an engine as shown in FIG. 4, a roller 1 of a rocker arm R contacting a cam C is freely rotatable on a rocker arm R by a metal support shaft 2 as shown in FIG. It is configured to be supported by.
【0003】そして、支軸2の外周面とローラ1の内周
面との間の摩擦により両者の摩耗が激しいので、両者間
の潤滑性の向上を図るために、ローラ1の内周面ある程
度の制御された粗さを持たせて、例えばローレット加工
を施して、潤滑油が保持されるようにしている。更にロ
ーラ1の軽量化及び耐摩耗性、特にその内周面の耐焼付
性や耐摩耗性を向上させるためにローラ1をセラミック
ス製にすることもある。Since friction between the outer peripheral surface of the support shaft 2 and the inner peripheral surface of the roller 1 causes severe wear of both, in order to improve lubricity between the both, the inner peripheral surface of the roller 1 to some extent. With controlled roughness, the knurling process is performed to retain the lubricating oil. Further, in order to reduce the weight of the roller 1 and wear resistance thereof, particularly seizure resistance and wear resistance of the inner peripheral surface thereof, the roller 1 may be made of ceramics.
【0004】[0004]
【発明が解決しようとする課題】上記のように、エンジ
ンの弁駆動用のロッカーアームのローラの内周面と支軸
の外周面との間が潤滑状態に関して最も劣化の問題が生
じ、この部分に焼付け等の不具合が発生する。As described above, the problem of the greatest deterioration occurs in the lubrication state between the inner peripheral surface of the roller of the rocker arm for driving the engine valve and the outer peripheral surface of the support shaft. Problems such as baking occur.
【0005】それへの対応として、従来の技術のエンジ
ンの弁駆動用のロッカーアームのローラは、ローラの内
周面と支軸の外周面との間の潤滑性の向上を図るため
に、ローラの内周面にローレット加工等の粗面加工を施
して、潤滑油が保持されるようにしているが、全面に亘
る潤滑油の供給も十分でない上、粗面加工も手数が掛
る。In response to this, a roller of a rocker arm for driving a valve of an engine of the prior art is a roller for improving lubricity between an inner peripheral surface of the roller and an outer peripheral surface of a support shaft. The inner peripheral surface is roughened such as knurling so that the lubricating oil is retained, but the supply of the lubricating oil over the entire surface is not sufficient and the roughening is troublesome.
【0006】又、ローラをセラミックス製にした場合に
は、ローラ側の耐焼付性や耐摩耗性はよいが、支軸側の
摩耗は、一層問題になり、しかもセラミックス材では、
ローラの内周面にローレット加工等の粗面加工を施こす
こともかなわない。When the roller is made of ceramics, seizure resistance and wear resistance on the roller side are good, but wear on the support shaft side becomes more problematic.
It is not possible to apply rough surface processing such as knurling to the inner surface of the roller.
【0007】この発明は、カム従動子、例えばエンジン
の弁駆動用のカム従動子におけるローラと支軸との上記
のような潤滑問題を解決することを目的としている。An object of the present invention is to solve the above-mentioned lubrication problem of a roller and a support shaft in a cam follower, for example, a cam follower for driving a valve of an engine.
【0007】[0007]
【課題を解決するための手段】この発明のカム従動子
は、従動部材(例えばロッカーアーム)の金属製の支軸
に軸線方向において微小隙間を形成し得るように複数に
分割され、且つカムに係合するローラが回転自在に嵌合
支承されており、好ましくは、ローラの対向端面の少な
くとも一方に突起部が形成されている。The cam follower of the present invention is divided into a plurality of parts so that a minute gap can be formed in the axial direction on the metal support shaft of the follower member (eg rocker arm), and the cam follower is The engaging roller is rotatably fitted and supported, and preferably, a protrusion is formed on at least one of the opposite end surfaces of the roller.
【0008】又、前記ローラがセラミックス製であって
もよく、その場合は、ローラの外周面にカムに係合する
金属製のスリーブを回転自在に嵌合するのが好ましい。Further, the roller may be made of ceramics. In that case, it is preferable to rotatably fit a metal sleeve engaging with a cam to the outer peripheral surface of the roller.
【0009】[0009]
【作用】上記のカム従動子は、カムの回転に伴ってロー
ラ、即ちカム従動子が押圧されて変位することにより、
従動部材が変位する。その際、ローラは、支軸を中心に
回転する。そして、ローラの回転において、ローラに対
する加工がなくても、潤滑油は、ローラの外側端面との
間の微小隙間は勿論のこと、ローラ間の、即ち各ローラ
の対向端面同士の間の微小隙間に供給保持され、そこか
らも潤滑油がローラの内周面と支軸の外周面との間に供
給されるので、両者間の潤滑は十分に行われる。従っ
て、ローラ及び支軸、特に支軸の摩損は抑止される。In the cam follower described above, the roller, that is, the cam follower is pressed and displaced as the cam rotates,
The driven member is displaced. At that time, the roller rotates around the support shaft. When the rollers are rotated, even if the rollers are not processed, the lubricating oil is not only a minute gap between the rollers and the outer end surface of the rollers, but also a minute gap between the rollers, that is, between the opposite end surfaces of the rollers. The lubricating oil is also supplied to and held between the inner peripheral surface of the roller and the outer peripheral surface of the support shaft, so that lubrication between the both is sufficiently performed. Therefore, wear of the roller and the support shaft, especially the support shaft, is suppressed.
【0010】更にローラの対向端面に突起部が形成され
ていると、ローラの対向端面同士の間の微小隙間は確実
に維持される。従ってその微小隙間からローラの内周面
と支軸の外周面との間への潤滑油の供給が確保され、即
ちローラ及び支軸、特に支軸の摩損の抑止が確実なもの
となる。Further, when the protrusions are formed on the opposite end faces of the roller, the minute gap between the opposite end faces of the roller is surely maintained. Therefore, the supply of the lubricating oil from the minute gap between the inner peripheral surface of the roller and the outer peripheral surface of the support shaft is ensured, that is, the wear of the roller and the support shaft, particularly the support shaft, is surely suppressed.
【0011】又、ローラがセラミックス製の場合には、
ローラの耐摩耗性が向上し、従動部材が軽量化されるの
で、応答性が向上する。そして、スリーブが外嵌された
場合には、スリーブによりセラミックス製のローラの破
損が抑止され、ローラが破損する事故が生じた場合で
も、スリーブによりその破片の散乱が防止される。If the roller is made of ceramics,
Since the wear resistance of the roller is improved and the driven member is reduced in weight, the responsiveness is improved. When the sleeve is fitted over the sleeve, the sleeve prevents the ceramic roller from being damaged, and the sleeve prevents scattering of the broken pieces even when the roller is damaged.
【0012】そして、温度変化があっても、即ち金属製
の支軸及びスリーブとセラミックス製のローラとに膨張
差があっても、ローラ及びスリーブの回転において、支
軸の外周面とローラの内周面との間の微小隙間及びロー
ラの外周面とスリーブの内周面との間の微小隙間の和が
一定量に維持され得る。従って、それらの微小隙間にお
ける潤滑油の流通保持、即ち支軸の外周面・ローラの内
周面間の潤滑及びローラの外周面・スリーブの内周面間
の潤滑が維持される。Even if there is a temperature change, that is, even if there is a difference in expansion between the metal support shaft / sleeve and the ceramic roller, when the roller / sleeve rotates, the outer peripheral surface of the support shaft and the roller The sum of the minute gap between the peripheral surface and the minute gap between the outer peripheral surface of the roller and the inner peripheral surface of the sleeve can be maintained at a constant amount. Therefore, the lubricating oil is kept flowing in these minute gaps, that is, the lubrication between the outer peripheral surface of the support shaft and the inner peripheral surface of the roller and the lubrication between the outer peripheral surface of the roller and the inner peripheral surface of the sleeve are maintained.
【0013】[0013]
【実施例】この発明の実施例におけるカム従動子を図面
に従って説明する。カム従動子としては、図4に示すエ
ンジンにおいてカムCに接するロッカーアームRのロー
ラ1を例示して説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS A cam follower according to an embodiment of the present invention will be described with reference to the drawings. As the cam follower, the roller 1 of the rocker arm R that contacts the cam C in the engine shown in FIG. 4 will be described as an example.
【0014】図4において、金属からなるロッカーアー
ムRの一端(右端)は、球面支点Pにより支承され、他
端(左端)には、タペット弁Vが取付けられている。そ
して、ロッカーアームRの中央域には、カムCと係合す
るローラ1を嵌装するローラ孔Hが形成され、ローラ孔
Hの両側のアーム部にかしめ等で両端支持されて取付け
られた金属製の支軸2には、ローラ1が回転自在に支持
されている。支軸2の滑動面は焼入れ等の熱処理が施さ
れている。In FIG. 4, one end (right end) of a rocker arm R made of metal is supported by a spherical fulcrum P, and a tappet valve V is attached to the other end (left end). A roller hole H into which the roller 1 that engages with the cam C is fitted is formed in the central region of the rocker arm R, and the metal is attached to both arm portions of the roller hole H while being supported at both ends by caulking or the like. A roller 1 is rotatably supported on a manufactured support shaft 2. The sliding surface of the support shaft 2 is subjected to heat treatment such as quenching.
【0015】図1に示す第1実施例においては、中空の
ローラ1は、支軸2に回転自在に嵌合支承されて軸線方
向で二分割された分割ローラ1A,1B、即ち隣接した
2個の分割ローラ1A,1Bから構成され、そして、分
割ローラ1A,1Bがローラ孔Hにおいて軸線方向に適
宜の遊びがあるようになっている。従って、ローラ孔H
の両側面と分割ローラ1A,1Bの外側端面との間、分
割ローラ1A,1Bの内側端面同士の間及び分割ローラ
1A,1Bの内周面と支軸2の外周面との間には、適宜
の微小隙間3が形成され得る。In the first embodiment shown in FIG. 1, a hollow roller 1 is rotatably fitted and supported on a support shaft 2 and divided into two axially divided rollers 1A and 1B, that is, two adjacent rollers. The divided rollers 1A and 1B are provided so that the divided rollers 1A and 1B have an appropriate play in the roller hole H in the axial direction. Therefore, the roller hole H
Between the both side surfaces of the divided rollers 1A and 1B, the outer end surfaces of the divided rollers 1A and 1B, the inner end surfaces of the divided rollers 1A and 1B, and the inner peripheral surface of the divided rollers 1A and 1B and the outer peripheral surface of the support shaft 2. An appropriate minute gap 3 can be formed.
【0016】分割ローラ1A,1Bの材料は一般に金属
であるが、場合によっては、セラミックス材でもよい。
更に分割ローラ1A,1Bの外周面及び内周面の両端縁
を面取りするか、円弧面に形成することが好ましい。そ
うすることにより、支軸2に対する摩耗影響が減少する
と共に、分割ローラ1A,1Bの傾きにも対応し得る。The material of the split rollers 1A and 1B is generally metal, but in some cases, it may be a ceramic material.
Further, it is preferable to chamfer both end edges of the outer peripheral surface and the inner peripheral surface of the split rollers 1A and 1B, or to form them into an arc surface. By doing so, the influence of wear on the support shaft 2 is reduced, and the inclination of the split rollers 1A and 1B can be dealt with.
【0017】図2に示す第2実施例においては、第1実
施例における2分割ローラ1A,1Bの少なくとも一方
の分割ローラ1A(1B)における他方の分割ローラ1
B(1A)に対向する端面に適宜数の小突起4が形成さ
れている。図示の例においては、3個の小突起4,4,
4が円周等配に形成されている。そして、小突起4は、
対向する他方のローラの端面に当接し得て、両者の対向
端面同士の接触を抑止し、両分割ローラ1A,1B間の
微小隙間3を維持する。In the second embodiment shown in FIG. 2, at least one of the two split rollers 1A and 1B in the first embodiment is divided into the other split roller 1A (1B).
An appropriate number of small protrusions 4 are formed on the end surface facing B (1A). In the illustrated example, the three small protrusions 4, 4,
4 are formed at equal intervals on the circumference. And the small protrusion 4 is
It can come into contact with the end faces of the other opposing roller to prevent contact between the opposing end faces of both rollers, and maintain the minute gap 3 between the split rollers 1A and 1B.
【0018】図3に示す第3実施例においては、第1実
施例のローラ及び第2実施例のローラ1(分割ローラ1
A,1B)がセラミックス製の場合であり、分割ローラ
1A,1Bに跨って、それらの外周面に金属製の円筒形
スリーブ5が回転自在に嵌合支承され、そのスリーブ5
の外周面がカムCに係合するように構成されている。そ
して、ローラ1の外周面とスリーブ5の内周面との間に
は適宜の微小隙間6が形成され得る。スリーブ5の少な
くとも内外周の滑動表面は、焼入れ等の硬化処理が施さ
れている。スリーブ5の厚さは、軽量化の点から強度を
損わない範囲で、ローラ1の厚さより薄い方が好まし
い。又、セラミックス製の分割ローラ1A,1Bの両端
面は、潤滑油の保持を目的として焼結仕上げのままの粗
面としてもよい。In the third embodiment shown in FIG. 3, the roller of the first embodiment and the roller 1 of the second embodiment (split roller 1
A, 1B) is made of ceramics, and a cylindrical sleeve 5 made of metal is rotatably fitted and supported on the outer peripheral surfaces of the split rollers 1A, 1B.
The outer peripheral surface of is engaged with the cam C. An appropriate minute gap 6 may be formed between the outer peripheral surface of the roller 1 and the inner peripheral surface of the sleeve 5. At least the inner and outer peripheral sliding surfaces of the sleeve 5 are subjected to hardening treatment such as quenching. The thickness of the sleeve 5 is preferably thinner than that of the roller 1 within a range that does not impair strength in terms of weight reduction. Further, both end surfaces of the ceramic split rollers 1A and 1B may be roughened surfaces that have been sintered and finished for the purpose of retaining lubricating oil.
【0019】上記の実施例のロッカーアームRにおい
て、カムCの回転に伴ってローラ1が押圧されて変位す
ることにより、ロッカーアームRが支点を中心に揺動
し、それに応じてタペット弁Vが開閉作動される。その
際、ローラ1は、支軸2を中心に回転する。In the rocker arm R of the above-described embodiment, the roller 1 is pressed and displaced in accordance with the rotation of the cam C, whereby the rocker arm R swings around the fulcrum, and the tappet valve V accordingly moves. It is opened and closed. At that time, the roller 1 rotates around the support shaft 2.
【0020】ローラ1の回転において、ローラ1に対す
る加工がなくても、潤滑油は、ローラ孔Hの両側面と分
割ローラ1A,1Bの外側端面との間の微小隙間3は勿
論のこと、ローラ1の中央部、即ち分割ローラ1A,1
Bの対向端面同士の間の微小隙間3に供給保持され、そ
こからも潤滑油がローラ1の内周面と支軸2の外周面と
の間に供給されるので、両者間の潤滑は十分に行われ
る。従って、ローラ1及び支軸2、特に支軸2の摩損は
抑止される。In the rotation of the roller 1, even if the roller 1 is not processed, the lubricating oil is not limited to the minute gap 3 between the both side surfaces of the roller hole H and the outer end surfaces of the divided rollers 1A and 1B. 1 central part, that is, the split rollers 1A, 1
The lubricating oil is supplied and held in the minute gap 3 between the opposite end surfaces of B, and the lubricating oil is also supplied from there between the inner peripheral surface of the roller 1 and the outer peripheral surface of the support shaft 2, so that the lubrication between the two is sufficient. To be done. Therefore, wear of the roller 1 and the support shaft 2, especially the support shaft 2, is suppressed.
【0021】更に第2実施例の場合のように分割ローラ
1B(1A)に対向する端面に小突起4が形成されてい
ると、分割ローラ1A,1Bの対向端面同士の間の微小
隙間3は確実に維持される。従ってその微小隙間3から
ローラ1の内周面と支軸2の外周面との間への潤滑油の
供給が確保され、即ちローラ1及び支軸2、特に支軸2
の摩損の抑止が確実なものとなる。Further, as in the case of the second embodiment, when the small projection 4 is formed on the end surface facing the split roller 1B (1A), the minute gap 3 between the facing end surfaces of the split rollers 1A, 1B becomes small. Will be maintained reliably. Therefore, the supply of the lubricating oil from the minute gap 3 between the inner peripheral surface of the roller 1 and the outer peripheral surface of the support shaft 2 is ensured, that is, the roller 1 and the support shaft 2, especially the support shaft 2
Deterrence of wear and tear on the will be ensured.
【0022】又、分割ローラ1A,1Bがセラミックス
製の場合には、ローラ1の耐摩耗性が向上し、タペット
弁のクリアランス調整が不用となる。そして、装置が軽
量化されるので、エンジンの応答性や燃料消費性能が向
上する。そして、第3実施例の場合には、外嵌されたス
リーブ4によりセラミックス製の分割ローラ1A,1B
の破損が抑止され、分割ローラ1A,1Bが破損する事
故が生じた場合でも、スリーブ4によりその破片散乱の
危険が防止される。When the split rollers 1A and 1B are made of ceramics, the wear resistance of the roller 1 is improved and the clearance adjustment of the tappet valve becomes unnecessary. Since the device is lightened, the responsiveness of the engine and the fuel consumption performance are improved. Further, in the case of the third embodiment, the divided rollers 1A and 1B made of ceramics by the sleeve 4 fitted on the outside.
Even if an accident occurs in which the split rollers 1A, 1B are damaged, the sleeve 4 prevents the risk of scattering the fragments.
【0023】そして、エンジン内の温度変化があって
も、即ち支軸2、ローラ1及びスリーブ4の膨張差があ
っても、ローラ1及びスリーブ4の回転において、支軸
2の外周面・ローラ1の内周面間の微小隙間3とローラ
1の外周面・スリーブ5の内周面間の微小隙間6との和
が一定量に維持され得る。従って、微小隙間3及び微小
隙間6における潤滑油の流通保持、即ち支軸2の外周面
・ローラ1の内周面間の潤滑及びローラ1の外周面・ス
リーブ5の内周面間の潤滑が維持される。Even if there is a temperature change in the engine, that is, there is a difference in expansion between the support shaft 2, the roller 1 and the sleeve 4, when the roller 1 and the sleeve 4 rotate, the outer peripheral surface of the support shaft 2 and the roller 4 rotate. The sum of the minute gap 3 between the inner peripheral surfaces of the roller 1 and the minute gap 6 between the outer peripheral surface of the roller 1 and the inner peripheral surface of the sleeve 5 can be maintained at a constant amount. Therefore, the lubricating oil is kept flowing in the minute gaps 3 and 6, that is, the lubrication between the outer peripheral surface of the support shaft 2 and the inner peripheral surface of the roller 1 and the lubrication between the outer peripheral surface of the roller 1 and the inner peripheral surface of the sleeve 5. Maintained.
【0024】[0024]
【発明の効果】この発明のカム従動子においては、ロー
ラを軸線方向で分割するだけで、面倒な粗面加工を施こ
す必要がない上、ローラの内周面と支軸の外周面との間
に対する潤滑油の十分な供給・保持を実現し、両者間の
潤滑は十分に行われ、延いては、両者、特に支軸の摩耗
が抑止される。According to the cam follower of the present invention, it is not necessary to perform a troublesome roughening process only by dividing the roller in the axial direction, and the inner peripheral surface of the roller and the outer peripheral surface of the support shaft are separated from each other. Sufficient supply / holding of the lubricating oil to / from the space is realized, the lubrication between the two is sufficiently performed, and the wear of both, especially the spindle is suppressed.
【0025】しかも、格別の粗面加工が不要で、十分な
潤滑が行われるので、支軸の摩耗の心配もなく、ローラ
の耐摩耗性の向上によるカム従動子の精度維持や、ロー
ラの軽量化によるカム従動子の応答性の向上というよう
な多くの利点があるセラミックス製のローラを用いるこ
とができる。そして、スリーブの外嵌の場合には、更に
セラミックス製のローラの破損が抑止され、ローラの破
損事故時における破片散乱の危険が防止される。Moreover, since no special rough surface processing is required and sufficient lubrication is carried out, there is no fear of wear of the support shaft, the accuracy of the cam follower is maintained by improving the wear resistance of the roller, and the weight of the roller is light. It is possible to use a roller made of ceramics, which has many advantages such as improvement in responsiveness of the cam follower due to the use of a roller. When the sleeve is externally fitted, the ceramic roller is further prevented from being damaged, and the risk of scattering of debris when the roller is damaged is prevented.
【図1】この発明の第1実施例におけるエンジンのロッ
カーアームのローラの断面図である。FIG. 1 is a sectional view of a roller of a rocker arm of an engine according to a first embodiment of the present invention.
【図2】この発明の第2実施例におけるエンジンのロッ
カーアームのローラの断面図である。FIG. 2 is a sectional view of a roller of a rocker arm of an engine according to a second embodiment of the present invention.
【図3】この発明の第3実施例におけるエンジンのロッ
カーアームの分割ローラの斜視図である。FIG. 3 is a perspective view of a split roller of a rocker arm of an engine according to a third embodiment of the present invention.
【図4】エンジンのロッカーアームの部分断面図であ
る。FIG. 4 is a partial cross-sectional view of a rocker arm of the engine.
【図5】従来の技術におけるエンジンのロッカーアーム
のローラの断面図である。FIG. 5 is a sectional view of a roller of a rocker arm of an engine according to a conventional technique.
R ロッカーアーム P 球面支点 V タペット弁 C カム H ローラ孔 1 ローラ 1A,1B 分割ローラ 2 支軸 3,6 微小隙間 4 小突起 5 スリーブ R Rocker arm P Spherical fulcrum V Tappet valve C Cam H Roller hole 1 Roller 1A, 1B Divided roller 2 Support shaft 3,6 Micro gap 4 Small protrusion 5 Sleeve
Claims (4)
いて微小隙間を形成し得るように複数に分割され、且つ
カムに係合するローラが回転自在に嵌合支承されている
カム従動子。1. A cam follower in which a metal supporting shaft of a driven member is divided into a plurality of parts so as to form a minute gap in the axial direction, and a roller engaging with the cam is rotatably fitted and supported. .
起部が形成されている請求項1に記載のカム従動子。2. The cam follower according to claim 1, wherein a projection is formed on at least one of the opposing end faces of the roller.
又は請求項2に記載のカム従動子。3. The roller is made of ceramics.
Alternatively, the cam follower according to claim 2.
のスリーブが回転自在に嵌合されている請求項3に記載
のカム従動子。4. The cam follower according to claim 3, wherein a metal sleeve engaging with the cam is rotatably fitted to the outer peripheral surface of the roller.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5142502A JPH06331003A (en) | 1993-05-24 | 1993-05-24 | Cam follower |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5142502A JPH06331003A (en) | 1993-05-24 | 1993-05-24 | Cam follower |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH06331003A true JPH06331003A (en) | 1994-11-29 |
Family
ID=15316837
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5142502A Pending JPH06331003A (en) | 1993-05-24 | 1993-05-24 | Cam follower |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH06331003A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011111418A1 (en) * | 2010-03-12 | 2011-09-15 | 日本精工株式会社 | Tappet roller bearing |
WO2017028918A1 (en) * | 2015-08-19 | 2017-02-23 | Volvo Truck Corporation | A variable valve actuation mechanism, an internal combustion engine, and a vehicle |
-
1993
- 1993-05-24 JP JP5142502A patent/JPH06331003A/en active Pending
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011111418A1 (en) * | 2010-03-12 | 2011-09-15 | 日本精工株式会社 | Tappet roller bearing |
EP2546480A1 (en) * | 2010-03-12 | 2013-01-16 | NSK Ltd. | Tappet roller bearing |
EP2546480A4 (en) * | 2010-03-12 | 2014-06-25 | Nsk Ltd | Tappet roller bearing |
WO2017028918A1 (en) * | 2015-08-19 | 2017-02-23 | Volvo Truck Corporation | A variable valve actuation mechanism, an internal combustion engine, and a vehicle |
CN107923268A (en) * | 2015-08-19 | 2018-04-17 | 沃尔沃卡车集团 | Variable valve actuation mechanism, explosive motor and vehicle |
EP3337960B1 (en) | 2015-08-19 | 2019-11-20 | Volvo Truck Corporation | A variable valve actuation mechanism, an internal combustion engine, and a vehicle |
US10648377B2 (en) | 2015-08-19 | 2020-05-12 | Volvo Truck Corporation | Variable valve actuation mechanism, an internal combustion engine, and a vehicle |
CN107923268B (en) * | 2015-08-19 | 2020-10-20 | 沃尔沃卡车集团 | Variable valve actuating mechanism, internal combustion engine and vehicle |
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