• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Certain steps are proposed to prevent the edges of support bearings incorporated in the piston head of a twofold piston to be subjected to pressure against the piston pin. This is obtained by using side walls and by cooling these side walls.
    公开号:SU1711680A3
    申请号:SU894613582
    申请日:1989-01-31
    公开日:1992-02-07
    发明作者:Эльсбетт Людвиг；Эльсбетт Гюнтер；Эльсбетт Клаус
    申请人:Elsbett L；Elsbett G；Elsbett Klaus；
    IPC主号:
    专利说明:

    The invention relates to mechanical engineering, in particular to engine-building, and can be used in the design of pistons for internal combustion engines.
    The aim of the invention is to increase the reliability of operation by reducing. neither the dynamic and thermal loads on
    piston pin.
    FIG. 1 shows the upper part of the piston, a section along the plane of the finger; in fig. 2 - the same, rotated 90 ° C; in fig. 3 - piston with a spherical combustion chamber; in fig. 4 is a section A-A in FIG. 2; in fig. 5 - cooling piston with indirect coolant supply; in fig. 6 - piston with external coolant supply; in fig. 7 - piston with direct coolant supply.
    The piston contains a head 1 with a bottom 2 and a sealing part 3, made in the form of an annular support 4, equipped with sealing rings (not shown) installed in the grooves 5. The piston bottom 2 is supported by a bridge 6 with an outer conical surface 7, associated with the head 1 and two symmetrically arranged supporting posts 8 and 9 with bushings 10 under the bearing. The piston skirt 11, spatially separated from the seal part 3, is hinged to the latter with a piston pin (not shown). The supports 8 and 9 are interconnected by side walls 12, 13, with the plane of the lower cut 14 of the side walls 12 and 13 located between the axis 15 of the finger and the upper bearing surface 16 of the bearings of the support columns.
    In the side walls 12 I13 from their side. Apertures 17 are made in the lower end. For the passage of a cooler (oil) into the piston, an opening 18 is made in its upper part.
    The redistribution of the jet flow of the cooler (oil) inside the piston is carried out by a constructive change in the guide surface 19 (Fig. 5-7).
    The sprayed oil that is collected in the cavities 20 (indicated by the arrow) comes out through the oil port 18. The uniformity required for supporting the piston on the finger is ensured in all working conditions due to the dimensions of the side walls 12 and 13. If the plane 14 is too far from the axis 15 of the finger , there is a high bearing pressure on the sleeve 10 due to the fact that the support posts 8 and 9 are moved apart. If the plane is 14 for lateral
    walls 12 and 13 are too far off to the axis of the finger 15, a high bearing pressure occurs on the surface 16 due to the fact that the side wall temperature in the plane 14
    less than the side wall temperature at the height of the oil holes 18. In this case, the support legs 8 and 9 acquire an inclined position due to thermal effect inwards, so that a large load on the surfaces 16 occurs. Due to the size 18 supplied through the oil holes 18, which is variable, the flow of oil to the cavity 20 is now, on the one hand,
    the temperature difference between the planes 21 and 14 is kept as low as possible and, on the other hand, due to the appropriate purpose, the lengths of the side walls 12 and 13 are warned as thermal,
    and a static change in the reference nd surface on the piston axis.
    FIG. 5, 6 and 7 you can see both parts
    piston assembly. Skirt 11 through guide surfaces 19 leads to the side
    the walls 12 and 13 of the head 1 of the piston 7 oil. The cooling of the side walls 12 and 13, depending on the requirements of the structure or cooling, occurs outside (Fig. 6) or from the inside (Fig. 5 and 7) due to indirect (Fig.
    5) or direct injection of the sprayed oil.
    Formula a isobteni
    权利要求:
    Claims (3)
    [1]
    1. An oil-cooled piston for an internal combustion engine comprising a head with a bottom and a sealing part made in the form of an annular support provided with piston rings and two symmetrically arranged support struts with bushings under the bearing,
    conjugate with the head with a jumper with an outer conical surface, and a skirt spatially separated from the sealing part and pivotally connected to the latter with a finger,
    distinguished by the fact that
    increase reliability in operation
    the piston, the supporting pillars are connected between
    a side walls, and the plane of the lower edge of the side walls is located between the axis of the finger and the top bearing, the surface of the bearings of the support columns.
    [2]
    2. A piston according to claim 1, characterized in that openings are made in the side walls on the side of their lower end.
    [3]
    3. The piston on the PP. 1–2, of t L and h and y, and with that, its upper part in at least one hole is made in the area of conjugation of supporting posts with a bridge.
    t
    t
    2
    Ръ.З
    Aa
    Fy
    FIG. five
    FIG. 6
    nineteen
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1711680A3|1992-02-07|Oil-cooled piston of internal combustion engine
    US4577595A|1986-03-25|Piston for a reciprocating piston internal combustion engine
    US4428330A|1984-01-31|Piston for internal combustion engines
    US3221718A|1965-12-07|Piston construction
    KR20040049308A|2004-06-11|Monobloc piston
    US4331107A|1982-05-25|Cooling of diesel engine pistons
    ES446584A1|1977-06-16|Individual cylinder head
    US3481316A|1969-12-02|Cylinder liner support with improved cooling
    GB1352290A|1974-05-08|Multi-piece pistons
    US4831917A|1989-05-23|Multiple piece piston for an internal combustion engine
    US1968110A|1934-07-31|Internal combustion engine
    US2234780A|1941-03-11|Cylinder head construction
    US3221722A|1965-12-07|Piston
    JPH0849595A|1996-02-20|Cylinder head device of internal combustion engine
    US3204617A|1965-09-07|Piston assembly
    US5081959A|1992-01-21|Cooling arrangement for piston head of internal combustion engine
    JPH02199258A|1990-08-07|Oil-cooling type piston for internal combustion engine
    US3516335A|1970-06-23|Piston with heat dam
    US2860614A|1958-11-18|Pistons
    US1710011A|1929-04-23|Piston
    GB1096826A|1967-12-29|Piston, e.g. for an internal combustion engine or compressor
    US4942858A|1990-07-24|Cylinder head for air-compressing, self-ignition internal combustion engines
    US1659799A|1928-02-21|Piston
    KR0138397Y1|1999-03-20|The piston with lubrication hole
    KR200178358Y1|2000-06-01|Piston ring of internal combustion engine
    同族专利:
    公开号 | 公开日
    DE3724618C2|1988-08-04|
    US4781159A|1988-11-01|
    BR8704177A|1988-04-12|
    EP0316330A1|1989-05-24|
    KR880701822A|1988-11-05|
    EP0316330B1|1991-03-20|
    KR950003748B1|1995-04-18|
    OA09033A|1991-03-31|
    DE3724618A1|1988-02-04|
    MX162166A|1991-04-04|
    WO1988001017A1|1988-02-11|
    AU7754187A|1988-02-24|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE670802C|1939-01-25|Versuchsanstalt Fuer Luftfahrt|Pistons for internal combustion engines|
    AU503148B2|1975-06-16|1979-08-23|Cummins Engine Company, Inc|Piston with flexible heat dam|
    DE2543478C2|1975-09-30|1983-01-05|Günter 8543 Hilpoltstein Elsbett|Pistons for internal combustion engines, especially diesel engines|
    DE2545588A1|1975-10-11|1977-04-14|Elsbett L|PISTONS FOR COMBUSTION MACHINERY, IN PARTICULAR DIESEL ENGINES|
    DE2841980A1|1978-09-27|1980-04-17|Schmidt Gmbh Karl|LIGHT PISTON FOR INTERNAL COMBUSTION ENGINES|
    DE2850126A1|1978-11-18|1980-05-29|Boge Kompressoren|PISTON FOR PISTON MACHINES LIKE PISTON COMPRESSORS, INTERNAL COMBUSTION ENGINES OR THE LIKE.|
    IT1194060B|1981-07-31|1988-09-14|Ae Borgo Spa|DIESEL ENGINE PISTON WITH ISOLATED COMBUSTION CHAMBER|
    DE3210771C2|1982-03-24|1988-07-07|Elsbett, Ludwig|AT388973B|1987-08-17|1989-09-25|Avl Verbrennungskraft Messtech|PISTON FOR INTERNAL COMBUSTION ENGINES|
    JP2608613B2|1988-10-21|1997-05-07|キャタピラーインコーポレーテッド|Engine with piston member having top ring groove|
    US4867119A|1988-10-21|1989-09-19|Caterpillar Inc.|Engine piston assembly and forged piston member therefor having a cooling recess|
    IN175093B|1988-10-21|1995-04-29|Caterpillar Inc|
    US4847964B1|1988-10-21|2000-05-09|Caterpillar Inc|Method of producing a crown for an articulated piston|
    US5200540A|1989-12-28|1993-04-06|Koriyama Kasei Co., Ltd.|Refining process of organic tinpolyhalides|
    BR9004990A|1990-09-28|1992-03-31|Metal Leve Sa|MANUFACTURING PROCESS OF ARTICULATED PUMP AND ARTICULATED PUMP|
    US5429080A|1993-12-13|1995-07-04|Evestar Technologies, Inc.|Compact internal combustion engine|
    DE19501416A1|1995-01-19|1996-07-25|Kolbenschmidt Ag|Forged or cast piston head of a multi-part piston|
    US5868112A|1996-12-19|1999-02-09|Cummins Engine Company, Inc.|Deep angle injection nozzle and piston having complementary combustion bowl|
    US7210448B2|2002-06-11|2007-05-01|Cummins, Inc.|Internal combustion engine producing low emissions|
    US6732703B2|2002-06-11|2004-05-11|Cummins Inc.|Internal combustion engine producing low emissions|
    US8276563B2|2002-06-28|2012-10-02|Cummins, Inc.|Internal combustion engine piston|
    DE102004045634A1|2004-09-21|2006-04-06|Daimlerchrysler Ag|Internal combustion engine|
    CN102713599A|2010-01-25|2012-10-03|株式会社日立高新技术|Liquid chromatograph and liquid feeder for liquid chromatograph|
    US9234451B2|2010-04-20|2016-01-12|Caterpillar Inc.|Piston having combustion bowl shaped to balance combustion efficiency and emission properties|
    US8978621B2|2010-04-20|2015-03-17|Caterpillar Inc.|Piston having combustion bowl shaped to balance combustion efficiency and emission properties|
    WO2012125961A1|2011-03-17|2012-09-20|Cummins Intellectual Property, Inc.|Piston for internal combustion engine|
    JP2013053572A|2011-09-05|2013-03-21|Isuzu Motors Ltd|Direct-injection engine combustion chamber structure|
    DE102013018250A1|2013-10-30|2015-04-30|Mahle International Gmbh|Piston for an internal combustion engine and method for its production|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE3626129|1986-08-01|
    PCT/DE1987/000333|WO1988001017A1|1986-08-01|1987-07-24|Piston upper part with incorporated support bearings for supporting the piston pin of a piston engine|
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