JPS6131293B2 - - Google Patents

Info

Publication number
JPS6131293B2
JPS6131293B2 JP53045790A JP4579078A JPS6131293B2 JP S6131293 B2 JPS6131293 B2 JP S6131293B2 JP 53045790 A JP53045790 A JP 53045790A JP 4579078 A JP4579078 A JP 4579078A JP S6131293 B2 JPS6131293 B2 JP S6131293B2
Authority
JP
Japan
Prior art keywords
piston
support
piston crown
crown
ring
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.)
Expired
Application number
JP53045790A
Other languages
Japanese (ja)
Other versions
JPS549312A (en
Inventor
Ludwig Elsbett
Guenter Elsbett
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of JPS549312A publication Critical patent/JPS549312A/en
Publication of JPS6131293B2 publication Critical patent/JPS6131293B2/ja
Granted 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

【発明の詳細な説明】 産業上の利用分野 本発明は、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・リングおよびスクレー
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、特にデ
イーゼル・エンジン用のピストンに関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a piston crown that is exposed to the combustion heat of an engine, and a piston pin that is attached to a guide portion that handles only thrust, which is separate from the piston crown. and a support portion articulated through the piston crown portion, and further connected to the piston crown portion through a thin wall portion provided at the top of the piston crown portion and retaining the seal ring and the scraper ring. a piston ring holding part, and the support part is formed into a leg part consisting of two supporting legs made in a bifurcated shape at the end opposite to the piston crown part. The supporting legs are provided symmetrically across a plane including the center line of the piston, and a piston pin for connecting the legs and the guide part in an articulated manner is inserted. The present invention relates to a piston for a reciprocating piston internal combustion engine, in particular for a diesel engine, which has a bore.

従来技術およびその問題点 上記種類のピストンは、例えば西独特許公開第
2543478号公報に開示のように、すでにこれまで
にも提案されている。この種のピストンは、その
時々の燃焼過程によく適合した熱分布パターンに
応じて燃焼室内の温度を平準化させることを可能
にし、その結果燃料と燃焼用空気との間の燃焼過
程を最適に完結させ得る上に、他方ではピスト
ン・リング保持部におけるシール・リングないし
はスクレーパ・リングの負荷を軽減させ得るので
ある。この種のピストンは従来から、燃焼過程の
面ならびにシール・リングないしはスクレーパ・
リングにかかる応力の面からその特性が優れたも
のとして認められてはいるが、内燃機関の出力の
著しい増大を考えると、その力学的安定性を向上
させることが必要であることが判明した。Prior art and its problems Pistons of the above type are known, for example, from the West German Patent Publication No.
This has already been proposed in the past, as disclosed in Publication No. 2543478. This type of piston makes it possible to equalize the temperature in the combustion chamber according to a heat distribution pattern that is well adapted to the current combustion process, thus optimizing the combustion process between the fuel and the combustion air. On the other hand, the load on the sealing ring or scraper ring on the piston ring holder can be reduced. This type of piston has traditionally been equipped with a combustion process and a seal ring or scraper.
Although its properties have been recognized as excellent in terms of the stress applied to the ring, in view of the significant increase in the output of internal combustion engines, it has been found that it is necessary to improve its mechanical stability.

発明の目的 そこで、本発明の目的は、この種のピストンに
おいて、できるだけ少ない材料でかついかなる直
径のものに対しても、その力学的安定性を向上さ
せることのできる構造を提供することにある。OBJECT OF THE INVENTION It is therefore an object of the present invention to provide a structure for this type of piston that can improve its mechanical stability using as little material as possible and for any diameter.

発明の構成 この目的は、前記支持体部を、そのピストン・
クラウン部に接する支持面の直径がその脚部に接
する支持面の直径に対して約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すること
によつて、達成される。Structure of the Invention This object is to move the support part to its piston.
The diameter of the support surface in contact with the crown portion is in a ratio of approximately 2:1 to the diameter of the support surface in contact with the leg portion.
This is achieved by constructing it in the form of a rotationally symmetrical truncated cone.

発明の効果 この構成によつて、ピストンの断面を広い範囲
にわたつて回転対称形にすることができ、製作し
やすい形状のピストンが生まれる。このような形
状のピストンは旋削部分ならびに鋳造部分として
簡単に構成することが可能で、かつまたこのよう
な製作方法をとることによつて、よくバランスの
とれたものに仕上げることができる。これによつ
てアンバランスその他の不都合な影響因子を排除
し得るので、このようにして製作されたピストン
はシリンダ内での一層正確な運動特性を保証し、
力学的安定性を向上させることができる。Effects of the Invention With this configuration, the cross section of the piston can be made rotationally symmetrical over a wide range, resulting in a piston having a shape that is easy to manufacture. Pistons of this type can be easily constructed as turned and cast parts, and by this manufacturing method they can be well-balanced. This makes it possible to eliminate unbalances and other undesirable influencing factors, so that the piston produced in this way guarantees more accurate movement characteristics in the cylinder,
Mechanical stability can be improved.

図面による詳細な説明 以下、図面によつて本発明によるピストンの一
実施例について更に詳しく説明する。Detailed Description with Drawings Hereinafter, one embodiment of the piston according to the present invention will be described in more detail with reference to the drawings.

ピストン１は基本的には、ピストン・クラウン
部２とこれに連なるピストン・リング保持部３、
ならびにこれら両部分と脚部４とをつなぐ支持体
部５とから成つている。ピストン１の前記支持体
部５は回転対称形の円すい台の形を成しており、
その基底面がピストン・クラウン部２に、切頭面
が脚部４に対応している。また支持体部５の切頭
面に接して、ピストン１の中心をよぎる縦方向断
面Ｘをはさんで対称的に二つの支脚部６および７
が設けられており、それらには仮想線が示されて
いるピストン・ピン１０のための穴８および９が
それぞれ備えられており、ピストンはこれらの部
分を介してピストン・ピンによつてそれと別体の
ガイド部１１に関節に連結されている。全体とし
てリング状の形をしているこのガイド部１１は、
ピストン・ピン１０のための二つの軸受部１２お
よび１３のほかに、エンジンのシリンダ内壁１４
にサイド・スラストだけをかけるスカート部１５
をもつており、ピストン１ならびにとりわけその
ピストン・リング保持部３はこの部分を介してシ
リンダ内壁１４に沿つてガイドされるのである。
このピストン・リング保持部３および支持体部５
をピストン・クラウン部２ともども、ガイド部１
１と切り離すことによつて、シリンダ内壁１４に
対して斜めに作用するこのようなサイド・スラス
トがピストン・リング保持部３にかからないよう
にすることができ、従つてこのピストン・リング
保持部が、シール・リングならびにスクレーパ・
リング１６および１７にかかる応力を一層少なく
しながら、しかもなお与えられた役割を一層よく
果たすことができるのである。 The piston 1 basically consists of a piston crown part 2, a piston ring holding part 3 connected to the piston crown part 2,
It also consists of a support body part 5 that connects these two parts and the leg part 4. The support portion 5 of the piston 1 has the shape of a rotationally symmetrical truncated cone,
Its base surface corresponds to the piston crown portion 2, and its truncated surface corresponds to the leg portion 4. In addition, in contact with the truncated surface of the support portion 5, two support legs 6 and 7 are symmetrically arranged across the longitudinal section X passing through the center of the piston 1.
are provided with holes 8 and 9, respectively, for a piston pin 10 shown in phantom, through which the piston is separated by the piston pin. It is jointly connected to the guide portion 11 of the body. This guide portion 11, which has a ring-like shape as a whole,
Besides the two bearings 12 and 13 for the piston pin 10, the inner cylinder wall 14 of the engine
Skirt part 15 that applies only side thrust to
The piston 1 and, in particular, its piston ring holder 3 are guided along the cylinder inner wall 14 via this part.
This piston ring holding part 3 and support body part 5
Both the piston crown part 2 and the guide part 1
By separating the piston ring holder 3 from the piston ring holder 1, the piston ring holder 3 can be prevented from being subjected to such side thrust acting obliquely to the cylinder inner wall 14, and therefore, the piston ring holder 3 can be separated from the piston ring holder 3. Seal ring and scraper
This allows the rings 16 and 17 to be subjected to less stress while still performing their assigned role better.

ピストンの運転寿命を長く延ばすのに役立つ力
学的安全性をピストンに付与するために、ピスト
ン１の支持体部５はその形が円すい台状になされ
ているのみならず、この支持体部はピストン・ク
ラウン部２に対して、そのピストン・クラウン部
に対応する支持面１８がピストンの頂部円面積の
丁度１／２になるようないわゆる等分円１９の範
囲で接しているのである。等分円１９としては、
ピストン１の回転対称軸Ｙを取囲む方の部分円の
直径がピストンの直径の約0.7倍に当たるものと
考えればよい。ピストン１の脚部４につながる部
分における、支持体部５のもう一つの支持面２１
は、支持体部５と支脚部６の付け根との間に広が
り、かつピストンの円すい台切頭面をなしている
一つの水平断面内にある。この水平断面は回転対
称軸Ｙを横切つて、等分円１９ないしは支持体部
５のピストン・クラウン部２に接する支持面１８
の直径の約半分に相当する長さ２２を直径として
広がつている。ピストン・クラウン部２に接する
支持面と、支持体部５の脚部４に接する支持面は
とくにその面積が等しくなるようにすることがで
きるので、その結果この両面には、特にガス圧力
によつて、支持体部５に座屈を生ずることなく、
等しく力がかけられることとなる。ここに図示さ
れている実施例では、支持体部５の内部に一つの
燃焼室２３が設けられているが、この燃焼室は簡
単のために球形に作られている。しかしこれは、
支持体部５の内部に燃焼室をもたないピストン１
を作ることを妨げるものではない。 In order to endow the piston with mechanical safety, which helps to prolong its operating life, the support part 5 of the piston 1 is not only truncated in shape; - The support surface 18 corresponding to the piston crown is in contact with the crown portion 2 within a so-called equidistant circle 19 that is exactly 1/2 of the top circular area of the piston. As the equal circle 19,
It can be considered that the diameter of the partial circle surrounding the axis of rotational symmetry Y of the piston 1 is approximately 0.7 times the diameter of the piston. Another support surface 21 of the support body part 5 in the part connected to the leg part 4 of the piston 1
is in one horizontal section extending between the support body part 5 and the base of the supporting leg part 6 and forming the truncated surface of the cone of the piston. This horizontal section crosses the axis of rotational symmetry Y and extends through the equidistant circle 19 or the support surface 18 which is in contact with the piston crown part 2 of the support part 5.
The diameter extends over a length 22, which is approximately half the diameter of the . The bearing surface in contact with the piston crown part 2 and the support surface in contact with the leg part 4 of the support part 5 can in particular have the same area, so that these two surfaces are particularly susceptible to gas pressure. Therefore, without buckling the support portion 5,
Equal force will be applied. In the embodiment shown here, a combustion chamber 23 is provided inside the support part 5, which combustion chamber is made spherical for simplicity. But this is
Piston 1 without combustion chamber inside support body part 5
It does not prevent you from making.

このケースでは支持体部５の内部に設けられて
いる燃焼室２３からピストン・リング保持部３へ
の熱の流れを大幅に抑制するために、等分円１９
の部分でピストン１のピストン・クラウン部２に
一つのリング状の薄肉部２４が設けられていて、
ピストン・リング保持部はこの部分を介してピス
トン・クラウン部と接続されている。かくするこ
とによつて、燃焼熱によつてピストン・リング保
持部に生ずる応力が一層小さくなるように、燃焼
室２３の中心部から外へ向つて放射状に流れる熱
の流れを大幅に抑制することができ、その結果、
ピストン・クラウン部２の頂上面２５に最も近い
ところにある第一のシール・リング１６を、上記
頂上面から、支持体部５のピストン・クラウン部
２に接する支持面１８よりもほんの僅かだけ更に
離れたところに設ければよいことになる。ピスト
ン・クラウン部２とピストン・リング保持部３と
の間の薄肉部２４の厚みは、頂上面２５からピス
トン・リング保持部３にはめ込まれている第一シ
ール・リング１６までの距離２６よりも小さくな
されている。支持体部５が比較的肉厚の薄い鉢形
になされていて、しかもピストン・クラウン部２
ないしは脚部４につながる支持面１８および２１
の面積が等しいかあるいはほぼ等しくなるように
しなければならないような場合には、支持体部の
肉厚を、ピストン・クラウン部２につながる支持
面１８に隣接した部分の壁の断面が脚部４につな
がる支持面２１に隣接した部分の壁の断面よりも
小さくなるように、変えてゆくことができる。支
持体部５の長さ２７は支持面１８から支持面２１
までにわたつている。 In this case, in order to significantly suppress the flow of heat from the combustion chamber 23 provided inside the support body part 5 to the piston ring holding part 3, an equally divided circle 19
A ring-shaped thin wall portion 24 is provided in the piston crown portion 2 of the piston 1 at the portion .
The piston ring holding part is connected to the piston crown part through this part. By doing so, the flow of heat radially outward from the center of the combustion chamber 23 is significantly suppressed so that the stress generated in the piston ring holding part due to combustion heat is further reduced. As a result,
The first seal ring 16 closest to the top surface 25 of the piston crown part 2 is moved from said top surface only slightly further than the support surface 18 of the support part 5 which is in contact with the piston crown part 2. It would be better to set it up in a remote location. The thickness of the thin wall portion 24 between the piston crown portion 2 and the piston ring retaining portion 3 is greater than the distance 26 from the top surface 25 to the first seal ring 16 fitted into the piston ring retaining portion 3. It is made smaller. The support portion 5 is shaped like a bowl with a relatively thin wall, and the piston crown portion 2
Support surfaces 18 and 21 leading to the legs 4
If the area of the support part 4 must be equal or almost equal, the wall thickness of the support part should be adjusted so that the cross-section of the wall adjacent to the support surface 18 leading to the piston crown part 2 is the same as that of the leg part 4. The cross-section of the wall adjacent to the support surface 21 connected to the wall can be changed to be smaller than the cross-section of the wall adjacent to the support surface 21 leading to the support surface 21 . The length 27 of the support portion 5 is from the support surface 18 to the support surface 21.
It has spread to

【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、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 sectional view of the piston 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... Equivalent circle, 23...
Combustion chamber, 24...thin wall part.

Claims (1)

【特許請求の範囲】 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・リングおよびスクレー
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、特許請求の
範囲第１項に記載のピストン。[Scope of Claims] 1. A piston crown exposed to the combustion heat of the engine, and a separate guide portion that is in charge of only side thrust, articulated through a piston pin. a supporting body part to be connected; and a piston ring holding part which is connected to the piston crown part through a thin wall part provided at the top of the piston crown part and which holds a seal ring and a scraper ring. , and the support part, at its end opposite to the piston crown part, transitions into a leg part consisting of two support legs made in a bifurcated form, and The supporting legs are provided symmetrically across a plane containing the centerline of the piston, and have holes for passing piston pins that connect the legs and the guide portion in an articulated manner. In the reciprocating piston type internal combustion engine piston, the support portion 5 is arranged such that the diameter of the support surface 18 in contact with the piston crown portion 2 is approximately 2:1 with respect to the diameter of the support surface 21 in contact with the leg portion 4. The ratio is A piston characterized in that it is configured in the shape of a single rotationally symmetrical truncated cone. 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.
JP4579078A 1977-04-18 1978-04-18 Piston of reciprocating internal combustion engine Granted JPS549312A (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 (2)

Publication Number Publication Date
JPS549312A JPS549312A (en) 1979-01-24
JPS6131293B2 true JPS6131293B2 (en) 1986-07-19

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 After (1)

Application Number Title Priority Date Filing Date
JP1989048168U Pending JPH01179153U (en) 1977-04-18 1989-04-24

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 (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR739921A (en) * 1932-07-12 1933-01-19 Engine piston
GB386815A (en) * 1931-03-09 1933-01-26 Pier Giorgio Vanni Improvements in or relating to pistons
DE1775655A1 (en) * 1967-09-12 1971-08-12 Alexandre Fotiadi Pistons for engines or compressors with its articulated connection with the piston-side connecting rod head
JPS5243017A (en) * 1975-09-30 1977-04-04 Elsbett L Piston for internal combustion engine* especially for diesel engine
JPS5247118A (en) * 1975-10-11 1977-04-14 Elsbett L Piston for internal combustion engine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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

Patent Citations (6)

* 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
DE1775655A1 (en) * 1967-09-12 1971-08-12 Alexandre Fotiadi Pistons for engines or compressors with its articulated connection with the piston-side connecting rod head
JPS5243017A (en) * 1975-09-30 1977-04-04 Elsbett L Piston for internal combustion engine* especially for diesel engine
JPS5247118A (en) * 1975-10-11 1977-04-14 Elsbett L Piston for internal combustion engine
DE2545588A1 (en) * 1975-10-11 1977-04-14 Elsbett L PISTONS FOR COMBUSTION MACHINERY, IN PARTICULAR DIESEL ENGINES

Also Published As

Publication number Publication date
GB1603534A (en) 1981-11-25
NL184535C (en) 1989-08-16
DE2717028A1 (en) 1978-10-26
SE7804342L (en) 1978-10-19
FR2388140A1 (en) 1978-11-17
YU90278A (en) 1982-05-31
JPS549312A (en) 1979-01-24
NL184535B (en) 1989-03-16
BR7802414A (en) 1979-01-23
IT7805176A0 (en) 1978-04-17
JPH01179153U (en) 1989-12-22
ZA782176B (en) 1979-02-25
DE2717028C2 (en) 1985-11-28
NL7804113A (en) 1978-10-20
DD136411A1 (en) 1979-07-04
HU177087B (en) 1981-07-28
IT1102201B (en) 1985-10-07
IN150508B (en) 1982-10-30

Similar Documents

Publication Publication Date Title
US4831919A (en) Asymmetric oval piston with higher convexity thrust face
US3914574A (en) Fabricated piston with sprayed groove
JPS592783B2 (en) Pistons for internal combustion engines
EP0398993A1 (en) Engine piston assembly and forged piston member therefor having a cooling recess.
JPH0331956B2 (en)
JPS6131293B2 (en)
US3251349A (en) Piston construction
JPH05312103A (en) Cooled cylindrical piston for internal combustion engine
US3843138A (en) Sheet metal compression ring
JPS6131294B2 (en)
US4109622A (en) Two stroke engines
US2815993A (en) Piston and connecting rod assembly for internal combustion engines
JPH04300466A (en) Hollow abrasion-resistant ring for engine piston
KR102364805B1 (en) Reinforcement of the piston ring-belt structure through additional machining
CS210854B1 (en) Cylinder head gasket of internal combustion engine
US3452649A (en) Pistons
KR20000070210A (en) Internal combustion engine piston
JPS5996457A (en) Cylinder block for internal-combustion engine
US5267505A (en) Piston
JPS6296761A (en) Piston for internal combustion engine
JP2021042751A (en) Piston for internal combustion engine
JPH0353002Y2 (en)
JPS59170444A (en) Ceramic engine
JPH06193733A (en) Piston
JPS5899555A (en) Assembly of piston and connecting rod