JPS59179260U - piston - Google Patents

piston

Info

Publication number
JPS59179260U
JPS59179260U JP7308583U JP7308583U JPS59179260U JP S59179260 U JPS59179260 U JP S59179260U JP 7308583 U JP7308583 U JP 7308583U JP 7308583 U JP7308583 U JP 7308583U JP S59179260 U JPS59179260 U JP S59179260U
Authority
JP
Japan
Prior art keywords
piston
crown
piston crown
piston body
protruding part
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
JP7308583U
Other languages
Japanese (ja)
Other versions
JPH0320520Y2 (en
Inventor
石坂　一義
Original Assignee
トヨタ自動車株式会社
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
Application filed by トヨタ自動車株式会社 filed Critical トヨタ自動車株式会社
Priority to JP7308583U priority Critical patent/JPS59179260U/en
Publication of JPS59179260U publication Critical patent/JPS59179260U/en
Application granted granted Critical
Publication of JPH0320520Y2 publication Critical patent/JPH0320520Y2/ja
Granted legal-status Critical Current

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  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は従来の鋳ぐるみピストンの断面図、第２図は従
来のボルト結合ピストンの断面図、第３図は本考案の一
実施例に係るピストンの断面図、第４図は本考案のもう
ひとつの実施例に係るピストンの断面図、第５図は熱膨
張変位に係る作用を示すリブ部近傍の断面図、である。 １０・・・・・・ピストンクラウン、１１・・・・・・
ピストン本体、１２・・・・・・ピストンクラウン下面
、１３・・・・・・ピストン軸線、１４・・・・・・垂
直下部、１５・・・・・・膨出部、１６・・・・・・リ
ブ、１７・・・・・・膨出部上面、１８・・・・・・侵
入部、１９・・・・・・侵入部下面、２０・・・・・・
基準面中心、２１・・・・・・ピストン本体上面、２２
．２３・・・・・・クリアランス、２４・・・・・・緩
衝材、２５・・・・・・膨出部下面、２６・・・・・・
リブ内周側面、２７・・・・・・緩衝材。Fig. 1 is a sectional view of a conventional cast-in piston, Fig. 2 is a sectional view of a conventional bolted piston, Fig. 3 is a sectional view of a piston according to an embodiment of the present invention, and Fig. 4 is a sectional view of a piston according to an embodiment of the present invention. FIG. 5 is a cross-sectional view of a piston according to another embodiment, and is a cross-sectional view of the vicinity of a rib portion showing an effect related to thermal expansion displacement. 10... Piston crown, 11...
Piston body, 12... piston crown lower surface, 13... piston axis, 14... vertical lower part, 15... bulge, 16... ...Rib, 17...Top surface of bulge, 18...Intrusion part, 19...Bottom surface of penetration, 20...
Center of reference plane, 21...Top surface of piston body, 22
．． 23...Clearance, 24...Buffer material, 25...Bulging lower surface, 26...
Rib inner peripheral side, 27...Cushioning material.

Claims (2)

【実用新案登録請求の範囲】[Scope of utility model registration request] （１）　　ピストンクラウンをピストン本体とは異質の
材料から構成し、ピストンクラウン下面に、下方に延び
る垂下部と該垂下部からピストンクラウン下面と間隔を
おいてピストン半径方向外方に向って延びる膨出部とか
ら成る傘状のリブを形成し、前記リブの膨出部とピスト
ンクラウン下面との間にピストン本体を侵入させこの侵
入部と前記膨出部との噛合いによってピストンクラウン
を離脱不能にピストン本体に鋳ぐるんだピストンにおい
て、前記リブの膨出部の上面と前記ピストン本体の侵入
部の下面とに、ピストンクラウンの下面を基準面とした
とき該基準面の中心からピストン半径方向外方でかつ下
方に向って延びる直線と一致するテーパを形成し、かつ
膨出部上面と侵入部下面、およびピストンクラウン下面
とピストン本体上面とを互に摺動可能に接触させたこと
を特徴とするピストン。(1) The piston crown is made of a material different from the piston body, and the lower surface of the piston crown has a hanging portion extending downward and a bulge extending outward in the radial direction of the piston from the hanging portion at a distance from the lower surface of the piston crown. The piston body is inserted between the protruding part of the rib and the lower surface of the piston crown, and the piston crown cannot be removed by the engagement between the protruding part and the protruding part. In a piston that is cast into a piston body, the upper surface of the bulging portion of the rib and the lower surface of the intrusion portion of the piston body are arranged in a radial direction of the piston from the center of the reference surface when the lower surface of the piston crown is the reference surface. It is characterized by forming a taper that coincides with a straight line extending outward and downward, and in which the upper surface of the bulging portion and the lower surface of the intrusion, and the lower surface of the piston crown and the upper surface of the piston body are brought into sliding contact with each other. piston. （２）前記ピストンクラウンをセラミックから構成し、
前記ピストン本体を金属から構成した実用新案登録請求
の範囲第１項記載のピストン。(2) the piston crown is made of ceramic;
The piston according to claim 1, wherein the piston body is made of metal.
JP7308583U 1983-05-18 1983-05-18 piston Granted JPS59179260U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7308583U JPS59179260U (en) 1983-05-18 1983-05-18 piston

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7308583U JPS59179260U (en) 1983-05-18 1983-05-18 piston

Publications (2)

Publication Number Publication Date
JPS59179260U true JPS59179260U (en) 1984-11-30
JPH0320520Y2 JPH0320520Y2 (en) 1991-05-02

Family

ID=30203220

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7308583U Granted JPS59179260U (en) 1983-05-18 1983-05-18 piston

Country Status (1)

Country Link
JP (1) JPS59179260U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6338668A (en) * 1986-07-30 1988-02-19 ナシヨナル・エアロノ−テイツクス・アンド・スペ−ス・アドミニストレイシヨン Composite piston

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52131017A (en) * 1976-04-26 1977-11-02 Kubota Ltd Engine piston
JPS5645134U (en) * 1979-09-17 1981-04-23
JPS5645259A (en) * 1979-09-17 1981-04-24 Honda Motor Co Ltd Casting comprising dissimilar materials

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5645134B2 (en) * 1974-01-16 1981-10-24

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52131017A (en) * 1976-04-26 1977-11-02 Kubota Ltd Engine piston
JPS5645134U (en) * 1979-09-17 1981-04-23
JPS5645259A (en) * 1979-09-17 1981-04-24 Honda Motor Co Ltd Casting comprising dissimilar materials

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6338668A (en) * 1986-07-30 1988-02-19 ナシヨナル・エアロノ−テイツクス・アンド・スペ−ス・アドミニストレイシヨン Composite piston

Also Published As

Publication number Publication date
JPH0320520Y2 (en) 1991-05-02

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