JPH07317515A - Measuring method and jig for abrasion amount of engine valve face part - Google Patents
Measuring method and jig for abrasion amount of engine valve face partInfo
- Publication number
- JPH07317515A JPH07317515A JP11617394A JP11617394A JPH07317515A JP H07317515 A JPH07317515 A JP H07317515A JP 11617394 A JP11617394 A JP 11617394A JP 11617394 A JP11617394 A JP 11617394A JP H07317515 A JPH07317515 A JP H07317515A
- Authority
- JP
- Japan
- Prior art keywords
- valve face
- valve
- face portion
- amount
- engine valve
- 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
Landscapes
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、内燃機関用エンジンバ
ルブの弁フェース部の摩耗量を精度よく測定しうるよう
にした測定方法及び治具に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a measuring method and a jig for accurately measuring the wear amount of a valve face portion of an engine valve for an internal combustion engine.
【０００２】[0002]
【従来の技術】エンジンバルブの弁フェース部は、エン
ジン運転中においてバルブシートと繰返し激しく衝突す
るので、高い耐摩耗性が要求される。エンジンバルブの
製造工場等においては、エンジンバルブ用の素材の組成
や弁フェース部に盛金する硬質材料の組成を変更した際
等に、弁フェース部が所要の耐摩耗性を有しているか否
かを、実機によるベンチテスト等により検査することが
ある。2. Description of the Related Art A valve face portion of an engine valve repeatedly collides with a valve seat violently while the engine is in operation, so that high wear resistance is required. In engine valve manufacturing plants, etc., check whether the valve face has the required wear resistance when changing the composition of the material for the engine valve or the composition of the hard material to be deposited on the valve face. It may be inspected by a bench test with an actual machine.
【０００３】すなわち、上記組成を変更したエンジンバ
ルブを実際のエンジンバルブに組付けて、過酷な運転条
件のもとで長時間の連続耐久試験を行ったのち、エンジ
ンよりエンジンバルブを取り外して弁フェース部の摩耗
量を測定する。That is, an engine valve having the above composition changed is assembled to an actual engine valve, and a continuous durability test is conducted for a long time under severe operating conditions. Then, the engine valve is removed from the engine and the valve face is removed. Measure the amount of wear on the part.
【０００４】従来、この摩耗量の測定は、図５に示すよ
うな治具を用いて行っていた。すなわち、図５において
(１)は、軸部(1a)と傘部(1b)とからなるエンジンバルブ
(上下倒立して示す)で、傘部(1b)には、ほぼ45゜に傾斜
するテーパ状の弁フェース部(1c)が形成されている。Conventionally, the amount of wear has been measured by using a jig as shown in FIG. That is, in FIG.
(1) is an engine valve including a shaft portion (1a) and an umbrella portion (1b)
In the vertical direction (shown upside down), the umbrella portion (1b) is formed with a tapered valve face portion (1c) inclined at about 45 °.
【０００５】治具(２)は、エンジンバルブ(１)の軸部(1
a)が弛みなく嵌挿される軸孔(３)、及びそれと同軸をな
して連続する上下２段の大径の段付孔(凹孔)(４)を中央
に備えるワーク保持体(５)と、段付孔(４)における上部
の大径の有底孔(4a)に嵌合されたシートリング(６)とか
らなっている。The jig (2) includes a shaft portion (1) of the engine valve (1).
a) a work holder (5) having a shaft hole (3) into which a) is inserted without slackness, and a large-diameter stepped hole (concave hole) (4) having two upper and lower stages which are coaxial and continuous with each other. , A seat ring (6) fitted in a large-diameter bottomed hole (4a) in the upper part of the stepped hole (4).
【０００６】シートリング(６)における上端内周縁に
は、測定しようとするエンジンバルブ(１)の弁フェース
部(1c)と同じ傾斜角度及び幅を有する受面(6a)が形成さ
れている。At the inner peripheral edge of the upper end of the seat ring (6), a receiving surface (6a) having the same inclination angle and width as the valve face portion (1c) of the engine valve (1) to be measured is formed.
【０００７】この治具を用いて弁フェース部(1c)の摩耗
量を測定するには、図示するように、長時間使用後のエ
ンジンバルブ(１)を倒立させて、その軸部(1a)をワーク
保持体(５)の軸孔(３)に挿入し、弁フェース部(1c)をシ
ートリング(６)の受面(6a)に密着させる。To measure the amount of wear of the valve face portion (1c) using this jig, as shown in the figure, the engine valve (1) after being used for a long time is inverted and its shaft portion (1a) is inverted. Is inserted into the shaft hole (3) of the workpiece holder (5), and the valve face portion (1c) is brought into close contact with the receiving surface (6a) of the seat ring (6).
【０００８】この状態で、エンジンバルブ(１)の軸方向
の沈み込み量(変位量)、すなわち基準面であるワーク保
持体(５)の上面(5a)から傘部(1b)の上面までの高さ(ｈ)
をダイヤルゲージや深さゲージ等により測定する。In this state, the amount of axial depression (displacement) of the engine valve (1), that is, from the upper surface (5a) of the workpiece holder (5), which is the reference surface, to the upper surface of the umbrella portion (1b). Height (h)
Is measured with a dial gauge or depth gauge.
【０００９】この測定結果を、マスターワーク(標準バ
ルブ)や新品のエンジンバルブを用いて予め測定してお
いた高さ(ｈ)と比較し、その差により摩耗量の大小を判
定する。The result of this measurement is compared with the height (h) measured in advance using a master work (standard valve) or a new engine valve, and the magnitude of the amount of wear is judged from the difference.
【００１０】すなわち、弁フェース部(1c)の摩耗の大小
に応じて、エンジンバルブ(１)の沈み込み量が変化し、
高さ(ｈ)も変化するので、この高さ(ｈ)とマスターワー
ク等により測定した高さとを比較すれば、弁フェース部
(1c)の摩耗量を容易に知ることができる。That is, the amount of depression of the engine valve (1) changes according to the magnitude of wear of the valve face portion (1c),
Since the height (h) also changes, comparing this height (h) with the height measured by the master work etc., the valve face part
The amount of wear in (1c) can be easily known.
【００１１】[0011]
【発明が解決しようとする課題】上述のような治具を用
いた測定では、弁フェース部(1c)の表面全体が均一に摩
耗している場合において、その摩耗量を精度よく測定し
うるが、不均一に摩耗している際に測定誤差が生じるこ
とがある。In the measurement using the jig as described above, when the entire surface of the valve face portion (1c) is uniformly worn, the wear amount can be accurately measured. However, a measurement error may occur when unevenly worn.
【００１２】すなわち、シートリング(６)の受面(6a)
が、測定しようとするエンジンバルブ(１)の弁フェース
部(1c)と同じ傾斜角度及び幅を有していると、互いの接
触面は面接触状態となる。このような面接触状態では、
例えば図６に拡大して示すように、弁フェース部(1c)が
実線示や想像線示のように不均一に摩耗した際におい
て、肝心の摩耗凹部が受面(6a)に接触しなくなる。That is, the receiving surface (6a) of the seat ring (6)
However, if they have the same inclination angle and width as the valve face portion (1c) of the engine valve (1) to be measured, their contact surfaces are in surface contact. In such a surface contact state,
For example, as shown in an enlarged view in FIG. 6, when the valve face portion (1c) is unevenly worn as shown by a solid line and an imaginary line, the wear recess of the core does not come into contact with the receiving surface (6a).
【００１３】その結果、エンジンバルブ(１)は、弁フェ
ース部(1c)が摩耗しているにも拘らず沈み込まず、また
高さ(ｈ)もあまり変化しなくなるので、弁フェース部(1
c)の実際の摩耗量を正確に測定できなくなる。As a result, the engine valve (1) does not sink even though the valve face portion (1c) is worn, and the height (h) does not change so much.
The actual amount of wear in c) cannot be measured accurately.
【００１４】本発明は、上記問題点を解決するためにな
されたもので、弁フェース部の摩耗量をその摩耗形状に
関係なく、正確に測定しるうようにしたエンジンバルブ
弁フェース部の摩耗量測定方法及び治具を提供すること
を目的としている。The present invention has been made to solve the above-mentioned problems, and wear of an engine valve valve face portion is designed to accurately measure the amount of wear of the valve face portion irrespective of its wear shape. The object is to provide a quantity measuring method and a jig.
【００１５】[0015]
【課題を解決するための手段】上記目的を達成するた
め、本発明は、傘部側を上向として倒立したエンジンバ
ルブにおける前記傘部に形成されたテーパ状の弁フェー
ス部を、シートリング上端内周縁における前記弁フェー
ス部よりも傾斜角度が大きく、かつ最大内径の大きい受
面に当接させ、傘部上端面の軸方向の変位量を測定する
ことを特徴とするものである(請求項１)。In order to achieve the above object, the present invention provides a tapered valve face portion formed on the umbrella portion of an engine valve which is upside down with the umbrella portion side facing upward, and a tapered valve face portion formed on the seat ring upper end. It is characterized in that the displacement amount in the axial direction of the upper end surface of the umbrella portion is measured by contacting with a receiving surface having a larger inclination angle and a larger maximum inner diameter than the valve face portion at the inner peripheral edge (claim. 1).
【００１６】この場合、受面の上端を、弁フェース部の
中間面に接するようにするのが望ましい(請求項２)。In this case, it is desirable that the upper end of the receiving surface is in contact with the intermediate surface of the valve face portion (claim 2).
【００１７】また上記目的は、傘部側を上向として倒立
させたエンジンバルブにおける前記傘部に形成されたテ
ーパ状の弁フェース部を、シートリングにおける前記弁
フェース部の幅よりも狭幅の受面に当接させ、傘部上端
面の軸方向の変位量を測定することによっても達成され
る(請求項３)。Further, the above object is such that the tapered valve face portion formed in the umbrella portion of the engine valve which is inverted with the umbrella portion side facing upward has a width narrower than the width of the valve face portion in the seat ring. It is also achieved by bringing the head into contact with the receiving surface and measuring the amount of axial displacement of the upper end surface of the umbrella portion (claim 3).
【００１８】上記方法に用いる治具は、エンジンバルブ
の傘部が収容される凹孔と、それと連通する下方に同軸
をなして穿設され、エンジンバルブの軸部が弛みなく嵌
挿される軸孔とを備える保持体の前記凹孔内に、弁フェ
ース部よりも傾斜角度が大きく、かつ最大内径の大きい
受面又は弁フェース部の幅よりも狭幅の受面を上端内周
縁に備えるシートリングを嵌合したことを特徴とするも
のである(請求項４)。The jig used in the above method is a hole for accommodating an umbrella portion of an engine valve and a shaft hole which is coaxially formed in a downward direction communicating with the hole and into which the shaft portion of the engine valve is fitted without slack. A seat ring having a receiving surface having an inclination angle larger than that of the valve face portion and a larger maximum inner diameter or a receiving surface having a width narrower than the width of the valve face portion in the inner peripheral edge of the upper end in the concave hole of the holding body including Are fitted together (Claim 4).
【００１９】[0019]
【作用】本発明の方法によると、シートリングにおける
弁フェース部よりも傾斜角度の大きい受面又は弁フェー
ス部の幅よりも狭幅の受面が、弁フェース部の摩耗凹部
内に入り込んでそれと線接触するので、受面が弁フェー
ス部の非摩耗部に当接することはなく、傘部の上端面は
摩耗量に応じて下方に変位する。従って、その変位量を
標準バルブ等を用いて測定した数値と比較すれば、摩耗
量を正確に判定しうる。According to the method of the present invention, the bearing surface of the seat ring having a larger inclination angle than the valve face portion or the bearing surface narrower than the width of the valve face portion enters into the wear concave portion of the valve face portion. Since the line contact is made, the receiving surface does not come into contact with the non-wearing portion of the valve face portion, and the upper end surface of the umbrella portion is displaced downward according to the wear amount. Therefore, the wear amount can be accurately determined by comparing the displacement amount with a numerical value measured using a standard valve or the like.
【００２０】本発明の治具によると、エンジンバルブは
安定的に垂直に保持されるので、弁フェース部の円周面
上のほぼ同一個所が受面と接するようになり、その部分
の摩耗量を正確に測定することができる。According to the jig of the present invention, since the engine valve is stably held vertically, almost the same portion on the circumferential surface of the valve face portion comes into contact with the receiving surface, and the wear amount of that portion. Can be measured accurately.
【００２１】[0021]
【実施例】以下、本発明の実施例を、図面に基づいて説
明する。なお、図５に示す従来例と同様の部材には、同
じ符号を付して、その詳細な説明を省略する。Embodiments of the present invention will be described below with reference to the drawings. The same members as those of the conventional example shown in FIG. 5 are designated by the same reference numerals, and detailed description thereof will be omitted.
【００２２】図１において、治具(２)のワーク保持体
(５)の中心には、テーパ孔(７)が上下方向を向いて穿設
され、このテーパ孔(７)には、エンジンバルブ(１)の軸
部(1a)が嵌挿される軸孔(8a)を有する軸部支持筒(８)
が、着脱可能として嵌合されている。In FIG. 1, the work holder of the jig (2)
A taper hole (7) is formed in the center of (5) so as to face the vertical direction, and a shaft hole (1a) of the engine valve (1) is inserted into the taper hole (7). Shaft support cylinder (8) having 8a)
However, they are fitted so as to be removable.
【００２３】(９)は、ワーク保持体(５)の上部の有底孔
(4a)に着脱可能として嵌合されたシートリングで、その
上端内周縁に形成された受面(9a)の傾斜角度(α)は、測
定しようとするエンジンバルブ(１)の弁フェース部(1c)
の傾斜角度(45゜)よりも大としてある。(9) is a bottomed hole in the upper part of the work holder (5)
The inclination angle (α) of the receiving surface (9a) formed on the inner peripheral edge of the upper end of the seat ring detachably fitted to (4a) is the valve face part (1) of the engine valve (1) to be measured. 1c)
It is larger than the inclination angle of 45 degrees.
【００２４】受面(9a)の上端の内径は、弁フェース部(1
c)のほぼ中間部の直径と等しくしてあり、これにより、
弁フェース部(1c)の中間部外周面と受面(9a)の上端とは
線接触状態で当接する。The inner diameter of the upper end of the receiving surface (9a) is determined by the valve face portion (1
c) is almost equal to the diameter of the middle part, and
The outer peripheral surface of the intermediate portion of the valve face portion (1c) and the upper end of the receiving surface (9a) are in line contact with each other.
【００２５】次に、この実施例の治具(２)を用いて、エ
ンジンバルブ(１)の弁フェース部(1c)の摩耗量を測定す
る要領について説明する。測定に先だって、まず軸部支
持筒(８)とシートリング(９)とを、測定しようとするエ
ンジンバルブ(１)のサイズに適したものに選択し、それ
らをワーク保持体(５)のテーパ孔(７)及び有底孔(4a)に
嵌挿する。Next, the procedure for measuring the amount of wear of the valve face portion (1c) of the engine valve (1) using the jig (2) of this embodiment will be described. Prior to measurement, first select the shaft support cylinder (8) and seat ring (9) that are suitable for the size of the engine valve (1) to be measured, and taper them to the work holder (5). Fit into the hole (7) and the bottomed hole (4a).
【００２６】ついで、従来と同様、エンジンバルブ(１)
を倒立させて、その軸部(1a)を軸部支持筒(８)の軸孔(8
a)に挿入し、弁フェース部(1c)をシートリング(９)の受
面(9a)に当接させる。Then, as in the conventional case, the engine valve (1)
And turn the shaft (1a) into the shaft hole (8) of the shaft support tube (8).
The valve face portion (1c) is brought into contact with the receiving surface (9a) of the seat ring (9).
【００２７】この状態でエンジンバルブ(１)の軸方向の
沈み込み量を測定する。すなわち、図２に拡大して示す
ように、例えば弁フェース部(1c)全体がその中間部に最
大摩耗部を有するようにほぼ平均的に摩耗した際におい
て、シートリング(９)の受面(9a)は、その上端がほぼ最
大摩耗部と線接触し、かつそれ以外の受面(9a)と弁フェ
ース部(1c)との間には隙間が形成されるので、エンジン
バルブ(１)は摩耗した分だけ沈み込む。In this state, the amount of axial depression of the engine valve (1) is measured. That is, as shown in an enlarged view in FIG. 2, for example, when the valve face portion (1c) is worn almost evenly so that the entire valve face portion (1c) has a maximum wear portion in its middle portion, the bearing surface of the seat ring (9) ( In 9a), the upper end of the engine valve almost comes into linear contact with the maximum wear portion, and a gap is formed between the other receiving surface (9a) and the valve face portion (1c). Sink only as much as it wears.
【００２８】従って、このとき測定した、ワーク保持体
(５)上端の基準面(5a)から傘部(1b)上面までの寸法(H1)
と、同じく想像線で示す正規のマスターワーク又は新品
のエンジンバルブ(１)を用いて測定したときの寸法(H2)
との差(H1−H2)が、弁フェース部(1c)の最大摩耗量とな
る。Therefore, the workpiece holder measured at this time
(5) Dimension from the upper reference plane (5a) to the upper surface of the umbrella section (1b) (H 1 )
And the dimension (H 2 ) when measured using a genuine masterwork or a new engine valve (1), which is also shown in phantom.
The difference (H 1 −H 2 ) is the maximum wear amount of the valve face portion (1c).
【００２９】図３は、弁フェース部(1c)全体が平均的に
摩耗していない場合であり、この際には、受面(9a)を最
大摩耗部に接触させることはできないものの、受面(9a)
の傾斜角度(α)を大としてあるので、その面が弁フェー
ス部(1c)の非摩耗個所に接触することがなく、受面(9a)
の上端は、弁フェース部(1c)の摩耗凹部のいずれかの個
所と線接触する。FIG. 3 shows the case where the entire valve face portion (1c) is not worn on average. In this case, although the receiving surface (9a) cannot be brought into contact with the maximum worn portion, the receiving surface (9a)
Since the inclination angle (α) of is large, the surface does not come into contact with the non-wearing part of the valve face part (1c), and the receiving surface (9a)
The upper end of the is in line contact with any part of the wear recess of the valve face portion (1c).
【００３０】従って、従来のように、弁フェース部(1c)
に摩耗が発生しているにも拘らず、摩耗量を測定し得な
いということはない。なお、受面(9a)における上端の内
径の異なるシートリング(９)複数用意し、それらを逐次
交換して、弁フェース部(1c)に対する受面(9a)の上端の
接触位置を変えるようにすれば、最大又は最小摩耗量や
弁フェース部(1c)の摩耗の傾向等を測定することができ
る。Therefore, as in the conventional case, the valve face portion (1c)
It is possible that the amount of wear cannot be measured despite the occurrence of wear. In addition, a plurality of seat rings (9) having different inner diameters at the upper end of the receiving surface (9a) are prepared, and these are sequentially replaced to change the contact position of the upper end of the receiving surface (9a) with respect to the valve face portion (1c). By doing so, it is possible to measure the maximum or minimum wear amount, the tendency of wear of the valve face portion (1c), and the like.
【００３１】図４は、他の実施例のシートリングを用い
た測定方法(請求項３記載の実施例)を示す。このシート
リング(10)は、その受面(10a)の傾斜角度を弁フェース
部(1c)のそれとほぼ等しくするとともに、受面(10a)の
幅を弁フェース部(1c)のそれよりも狭幅とし、その中間
部に接触するようにしてある。FIG. 4 shows a measuring method (an example according to claim 3) using a seat ring of another example. This seat ring (10) makes the inclination angle of its receiving surface (10a) almost equal to that of the valve face portion (1c) and makes the width of the receiving surface (10a) narrower than that of the valve face portion (1c). The width is set so as to come into contact with the middle portion thereof.
【００３２】このような構成とすると、受面(10a)全体
が弁フェース部(1c)の摩耗凹部内に入り込み、その上下
の端縁が線接触するようになるため、上述と同様、マス
ターワーク等による摩耗量の比較測定ができる。With such a structure, the entire receiving surface (10a) enters into the wear concave portion of the valve face portion (1c), and the upper and lower edges thereof come into line contact with each other. It is possible to compare and measure the amount of wear due to such factors.
【００３３】[0033]
【発明の効果】本発明によれば、次のような効果を奏す
ることができる。 (ａ) 請求項１記載の発明では受面の上端が、また請求
項３記載の発明では受面の上下の端縁がそれぞれ弁フェ
ース部の摩耗凹部に入り込んで線接触し、エンジンバル
ブは摩耗した分だけ軸方向下方に変位するので、その変
位量を、例えば標準バルブでの測定結果と比較すれば、
摩耗量を正確に算出しうる。 (ｂ) 請求項２の発明によれば、弁フェース部の中間部
に最大摩耗部を有する際において、その最大摩耗量が正
確に測定される。 (ｃ) 請求項４記載の治具を用いると、エンジンバルブ
が安定的に垂直に保持されるので、弁フェース部の円周
面上の同一個所が受面と接し、その部分の摩耗量を正確
に測定することができる。According to the present invention, the following effects can be obtained. (a) In the invention described in claim 1, the upper end of the receiving surface, and in the invention described in claim 3, the upper and lower edges of the receiving surface respectively enter into the wear recesses of the valve face portion and make a line contact, and the engine valve wears. Since it is displaced axially downward by that amount, if you compare the amount of displacement with the measurement results of a standard valve, for example,
The amount of wear can be calculated accurately. (b) According to the invention of claim 2, when the maximum wear portion is provided in the intermediate portion of the valve face portion, the maximum wear amount is accurately measured. (c) When the jig according to claim 4 is used, since the engine valve is stably held vertically, the same portion on the circumferential surface of the valve face portion is in contact with the receiving surface, and the wear amount of that portion is reduced. Can be measured accurately.
【図１】本発明の治具の一実施例とそれによる弁フェー
ス部の摩耗の測定要領を示す中央縦断正面図である。FIG. 1 is a central vertical sectional front view showing an embodiment of a jig of the present invention and a measuring procedure of wear of a valve face portion by the embodiment.
【図２】中間部に最大摩耗部を有する弁フェース部の測
定状態を示す要部の拡大断面図である。FIG. 2 is an enlarged cross-sectional view of a main part showing a measurement state of a valve face portion having a maximum wear portion in an intermediate portion.
【図３】不均一な摩耗部を有する弁フェース部の測定状
態を示す要部の拡大断面図である。FIG. 3 is an enlarged cross-sectional view of a main part showing a measurement state of a valve face portion having an uneven wear portion.
【図４】狭幅とした受面を有するシートリングによる弁
フェース部の測定状態を示す要部の拡大断面図である。FIG. 4 is an enlarged cross-sectional view of a main part showing a measurement state of a valve face portion by a seat ring having a narrow receiving surface.
【図５】従来の治具とそれによる弁フェース部の測定要
領を示す中央縦断正面図である。FIG. 5 is a central longitudinal front view showing a conventional jig and a measuring procedure of a valve face portion by the jig.
【図６】同じく摩耗部の測定状態を示す要部の拡大断面
図である。FIG. 6 is an enlarged cross-sectional view of an essential part showing a measurement state of a worn part.
(１)エンジンバルブ (1a)軸部 (1b)傘部 (1c)弁フェース部 (２)治具 (３)軸孔 (４)段付孔(凹孔) (4a)有底孔 (５)ワーク保持体 (5a)基準面 (７)テーパ孔 (８)軸部支持筒 (8a)軸孔 (９)(10)シートリング (9a)(10a)受面 (1) Engine valve (1a) Shaft part (1b) Umbrella part (1c) Valve face part (2) Jig (3) Shaft hole (4) Stepped hole (concave hole) (4a) Bottomed hole (5) Work holder (5a) Reference surface (7) Tapered hole (8) Shaft support cylinder (8a) Shaft hole (9) (10) Seat ring (9a) (10a) Receiving surface
Claims (4)
ルブにおける前記傘部に形成されたテーパ状の弁フェー
ス部を、シートリング上端内周縁における前記弁フェー
ス部よりも傾斜角度が大きく、かつ最大内径の大きい受
面に当接させ、傘部上端面の軸方向の変位量を測定する
ことを特徴とするエンジンバルブ弁フェース部の摩耗量
測定方法。1. A tapered valve face portion formed on the umbrella portion of an engine valve that is inverted with the umbrella portion side facing upward has a larger inclination angle than the valve face portion at the inner peripheral edge of the upper end of the seat ring, and A method for measuring the amount of wear of an engine valve valve face portion, which comprises contacting a bearing surface having a large maximum inner diameter and measuring the amount of axial displacement of the upper end surface of the umbrella portion.
接するようにしたことを特徴とする請求項１記載のエン
ジンバルブ弁フェース部の摩耗量測定方法。2. The method for measuring the amount of wear of an engine valve valve face portion according to claim 1, wherein the upper end of the receiving surface is in contact with the intermediate surface of the valve face portion.
バルブにおける前記傘部に形成されたテーパ状の弁フェ
ース部を、シートリングにおける前記弁フェース部の幅
よりも狭幅の受面に当接させ、傘部上端面の軸方向の変
位量を測定することを特徴とするエンジンバルブ弁フェ
ース部の摩耗量測定方法。3. A tapered valve face portion formed on the umbrella portion of an engine valve that is inverted with the umbrella portion side facing upward is provided on a seating surface that is narrower than the width of the valve face portion of the seat ring. A method for measuring the amount of wear of an engine valve valve face portion, which comprises contacting and measuring the amount of axial displacement of the upper end surface of the umbrella portion.
用いる治具であって、エンジンバルブの傘部が収容され
る凹孔と、それと連通する下方に同軸をなして穿設さ
れ、エンジンバルブの軸部が弛みなく嵌挿される軸孔と
を備えるワーク保持体の前記凹孔内に、弁フェース部よ
りも傾斜角度が大きく、かつ最大内径の大きい受面又は
弁フェース部の幅よりも狭幅の受面を上端内周縁に備え
るシートリングを嵌合したことを特徴とするエンジンバ
ルブ弁フェース部の摩耗量測定治具。4. A jig used in the method according to any one of claims 1 to 3, wherein the recessed hole for housing the umbrella portion of the engine valve is provided coaxially below the recessed hole communicating with the recessed hole. A width of the receiving surface or the valve face portion having a larger inclination angle than the valve face portion and a larger maximum inner diameter, in the concave hole of the work holding body having a shaft hole into which the shaft portion of the engine valve is fitted without slack A wear measuring jig for an engine valve valve face portion, characterized in that a seat ring having a narrower receiving surface at the inner peripheral edge of the upper end is fitted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11617394A JPH07317515A (en) | 1994-05-30 | 1994-05-30 | Measuring method and jig for abrasion amount of engine valve face part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11617394A JPH07317515A (en) | 1994-05-30 | 1994-05-30 | Measuring method and jig for abrasion amount of engine valve face part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07317515A true JPH07317515A (en) | 1995-12-05 |
Family
ID=14680608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11617394A Pending JPH07317515A (en) | 1994-05-30 | 1994-05-30 | Measuring method and jig for abrasion amount of engine valve face part |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07317515A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108680112A (en) * | 2018-08-10 | 2018-10-19 | 玉柴联合动力股份有限公司 | A kind of valve retainer wear measurement device and its operating method |
| CN114651114A (en) * | 2019-08-19 | 2022-06-21 | 卡特彼勒公司 | Valve seat insert ring for high power and high speed diesel engines |
| CN117686367A (en) * | 2024-02-04 | 2024-03-12 | 潍柴动力股份有限公司 | Measuring method and measuring device for abrasion loss of valve retainer |
-
1994
- 1994-05-30 JP JP11617394A patent/JPH07317515A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108680112A (en) * | 2018-08-10 | 2018-10-19 | 玉柴联合动力股份有限公司 | A kind of valve retainer wear measurement device and its operating method |
| CN108680112B (en) * | 2018-08-10 | 2024-03-29 | 玉柴联合动力股份有限公司 | Valve retainer abrasion measuring device and operation method thereof |
| CN114651114A (en) * | 2019-08-19 | 2022-06-21 | 卡特彼勒公司 | Valve seat insert ring for high power and high speed diesel engines |
| CN117686367A (en) * | 2024-02-04 | 2024-03-12 | 潍柴动力股份有限公司 | Measuring method and measuring device for abrasion loss of valve retainer |
| CN117686367B (en) * | 2024-02-04 | 2024-05-17 | 潍柴动力股份有限公司 | Measuring method and measuring device for abrasion loss of valve retainer |
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