JPH01179153U - - Google Patents

Info

Publication number
JPH01179153U
JPH01179153U JP1989048168U JP4816889U JPH01179153U JP H01179153 U JPH01179153 U JP H01179153U JP 1989048168 U JP1989048168 U JP 1989048168U JP 4816889 U JP4816889 U JP 4816889U JP H01179153 U JPH01179153 U JP H01179153U
Authority
JP
Japan
Prior art keywords
piston
support
piston crown
leg
contact
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
Application number
JP1989048168U
Other languages
Japanese (ja)
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 filed Critical
Publication of JPH01179153U publication Critical patent/JPH01179153U/ja
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J1/00—Pistons; Trunk pistons; Plungers
    • F16J1/10—Connection to driving members
    • F16J1/14—Connection to driving members with connecting-rods, i.e. pivotal connections
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
    • F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
    • F02B23/0675—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston the combustion space being substantially spherical, hemispherical, ellipsoid or parabolic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F3/00—Pistons 
    • F02F3/0015—Multi-part pistons
    • F02F3/0069—Multi-part pistons the crown and skirt being interconnected by the gudgeon pin
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J1/00—Pistons; Trunk pistons; Plungers
    • F16J1/005—Pistons; Trunk pistons; Plungers obtained by assembling several pieces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J1/00—Pistons; Trunk pistons; Plungers
    • F16J1/02—Bearing surfaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
    • 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

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Description

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

第１図は、第２図の平面―に沿つた、本考
案による好ましい一実施例のピストンの縦断面図
であり、第２図は、第１図のピストンを上から見
た平面図である。 １…ピストン、２…ピストン・クラウン部、３
…ピストン・リング保持部、４…脚部、５…支持
体部、６，７…支脚部、１１…ガイド部、１６…
第一シール・リング、１７…スクレーパ・リング
、１８，２１…支持面、１９…等分円、２３…燃
焼室、２４…薄肉部。 1 is a longitudinal cross-sectional view of a piston according to a preferred embodiment of the present invention along the plane of FIG. 2, and FIG. 2 is a plan view of the piston of FIG. 1 viewed from above. . 1... Piston, 2... Piston crown part, 3
... Piston ring holding part, 4... Leg part, 5... Support body part, 6, 7... Support leg part, 11... Guide part, 16...
First seal ring, 17... Scraper ring, 18, 21... Support surface, 19... Equally divided circles, 23... Combustion chamber, 24... Thin wall portion.

Claims (1)

【実用新案登録請求の範囲】 (1) エンジンの燃焼熱にさらされるピストン・
クラウン部と、前記ピストン・クラウン部をそれ
と別体の、サイド・スラストのみを受持つガイド
部にピストン・ピンを介して関節状に連結する支
持体部と、更にピストン・クラウン部の頂部に設
けられた薄肉部を介してピストン・クラウン部に
つながつておりかつシール・リング及びスクレー
パ・リングを保持しているピストン・リング保持
部とを有し、前記支持体部が、そのピストン・ク
ラウン部と反対側の端部において、二またに分れ
た形に作られている二つの支脚部から成る脚部に
移り変つてゆくとともに、前記支脚部がピストン
の中心線を含む一つの平面をはさんで対称に設け
られておりかつ前記脚部と前記ガイド部とを関節
状に連結するピストン・ピンを通すための穴を有
している、往復動ピストン式内燃機関用ピストン
において、前記支持体部５を、そのピストン・ク
ラウン部２に接する支持面１８の直径がその脚部
４に接する支持面２１の直径に対して約２：１の
比となる、一つの回転対称形の円すい台の形に構
成したこと、及びピストン・クラウン部２に接す
る前記支持面１８の外周部が、ピストン・クラウ
ン部２の端面での等分円１９になるように構成し
たことを特徴とするピストン。 (2) 前記支持体部５の前記脚部４に隣接する部
分の壁の断面積が前記ピストン・クラウン部２に
隣接する部分の壁の断面積よりも広い、実用新案
登録請求の範囲第(1)項に記載のピストン。[Scope of utility model registration claims] (1) Pistons exposed to engine combustion heat.
a support body part that articulates the piston crown part to a separate guide part that handles only side thrust via a piston pin; a piston ring holding part that is connected to the piston crown part through a thin walled part and holds a seal ring and a scraper ring, and the support part is connected to the piston crown part. At the opposite end, it transitions to a leg consisting of two supporting legs made in a bifurcated shape, with the supporting legs sandwiching a plane containing the center line of the piston. In the piston for a reciprocating piston internal combustion engine, the support part 5 has a symmetrically arranged hole for passing a piston pin articulating the leg part and the guide part. into the shape of a rotationally symmetrical truncated cone, in which the diameter of the support surface 18 in contact with the piston crown 2 is in a ratio of about 2:1 to the diameter of the support surface 21 in contact with the leg 4. A piston characterized in that the outer circumferential portion of the support surface 18 in contact with the piston crown portion 2 forms an equally divided circle 19 at the end surface of the piston crown portion 2. (2) The cross-sectional area of the wall of the portion of the support portion 5 adjacent to the leg portion 4 is larger than the cross-sectional area of the wall of the portion adjacent to the piston crown portion 2, Piston described in item 1).
JP1989048168U 1977-04-18 1989-04-24 Pending JPH01179153U (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2717028A DE2717028C2 (en) 1977-04-18 1977-04-18 Pistons for reciprocating internal combustion engines, in particular diesel engines

Publications (1)

Publication Number Publication Date
JPH01179153U true JPH01179153U (en) 1989-12-22

Family

ID=6006518

Family Applications (2)

Application Number Title Priority Date Filing Date
JP4579078A Granted JPS549312A (en) 1977-04-18 1978-04-18 Piston of reciprocating internal combustion engine
JP1989048168U Pending JPH01179153U (en) 1977-04-18 1989-04-24

Family Applications Before (1)

Application Number Title Priority Date Filing Date
JP4579078A Granted JPS549312A (en) 1977-04-18 1978-04-18 Piston of reciprocating internal combustion engine

Country Status (13)

Country Link
JP (2) JPS549312A (en)
BR (1) BR7802414A (en)
DD (1) DD136411A1 (en)
DE (1) DE2717028C2 (en)
FR (1) FR2388140A1 (en)
GB (1) GB1603534A (en)
HU (1) HU177087B (en)
IN (1) IN150508B (en)
IT (1) IT1102201B (en)
NL (1) NL184535C (en)
SE (1) SE7804342L (en)
YU (1) YU90278A (en)
ZA (1) ZA782176B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5879048U (en) * 1981-11-24 1983-05-28 トヨタ自動車株式会社 Piston for internal combustion engine
DE3210771A1 (en) * 1982-03-24 1983-09-29 Günter 8543 Hilpoltstein Elsbett PISTON DRIVE FOR PISTON PISTON INTERNAL COMBUSTION ENGINES, LIKE DIESEL ENGINES AND OTHERS
IT1169590B (en) * 1982-10-20 1987-06-03 Ae Plc COMPOSITE PISTON FOR INTERNAL COMBUSTION ENGINES OF THE TYPE INCLUDING A SKY AND A CAPE
FR2575227B1 (en) * 1984-12-20 1988-12-23 Semt PISTON WITH LIGHT STRUCTURE, PARTICULARLY FOR AN INTERNAL COMBUSTION ENGINE
DE4014705C2 (en) * 1990-05-08 1999-06-10 Mahle Gmbh Cooled plunger for internal combustion engines with separate piston upper part and piston skirt

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5243017A (en) * 1975-09-30 1977-04-04 Elsbett L Piston for internal combustion engine* especially for diesel engine

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB386815A (en) * 1931-03-09 1933-01-26 Pier Giorgio Vanni Improvements in or relating to pistons
FR739921A (en) * 1932-07-12 1933-01-19 Engine piston
DE932463C (en) * 1951-09-13 1955-09-01 Viktor Dr-Ing Rembold Pistons and cylinder covers for internal combustion engines
FR1055128A (en) * 1952-04-24 1954-02-16 Two-piece piston
FR1543414A (en) * 1967-09-12 1968-10-25 Improved piston and its articulation assembly with the small end
US3516335A (en) * 1968-07-03 1970-06-23 Caterpillar Tractor Co Piston with heat dam
DE2439806C2 (en) * 1974-08-20 1981-09-17 Gebrüder Elsbett GmbH, 8543 Hilpoltstein Air-compressing, self-igniting internal combustion engine
AU503148B2 (en) * 1975-06-16 1979-08-23 Cummins Engine Company, Inc Piston with flexible heat dam
DE2545588A1 (en) * 1975-10-11 1977-04-14 Elsbett L PISTONS FOR COMBUSTION MACHINERY, IN PARTICULAR DIESEL ENGINES

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5243017A (en) * 1975-09-30 1977-04-04 Elsbett L Piston for internal combustion engine* especially for diesel engine

Also Published As

Publication number Publication date
IT7805176A0 (en) 1978-04-17
BR7802414A (en) 1979-01-23
NL184535C (en) 1989-08-16
JPS6131293B2 (en) 1986-07-19
IT1102201B (en) 1985-10-07
FR2388140A1 (en) 1978-11-17
NL184535B (en) 1989-03-16
NL7804113A (en) 1978-10-20
GB1603534A (en) 1981-11-25
IN150508B (en) 1982-10-30
DE2717028A1 (en) 1978-10-26
ZA782176B (en) 1979-02-25
YU90278A (en) 1982-05-31
JPS549312A (en) 1979-01-24
DD136411A1 (en) 1979-07-04
DE2717028C2 (en) 1985-11-28
HU177087B (en) 1981-07-28
SE7804342L (en) 1978-10-19

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