• 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:
    A piston for internal combustion engines, especially for high-performance internal combustion engines. The piston has several ring grooves for piston rings, and an oil control groove which is provided below the top ring groove, is separated therefrom, and opens only towards the cylinder bore. The land between the topmost ring groove and the oil control groove, seen in cross section, is designed as a support having constant bending stress and has a finite height at its outer surface. The inner confine of the oil control groove has a finite radius or rounded-off section to avoid an increased stress concentration factor.
    公开号:SU936824A3
    申请号:SU792782865
    申请日:1979-06-29
    公开日:1982-06-15
    发明作者:Бауэр Фридрих
    申请人:Машиненфабрик Аугсбург-Нюрнберг Аг (Фирма)；
    IPC主号:
    专利说明:

    (5) PISTON FOR MOTOR ELA INNER
    one
    The invention relates to mechanical engineering, namely, engine-building and can be used in the manufacture of pistons for internal combustion engines with high power.
    A well-known piston for an internal combustion engine is preferably of high power, comprising a core, Q start, several annular grooves for piston rings and an oil catching groove located below the upper annular groove, separated from the upper annular groove by a jumper, open from the side of the side surface of the piston and formed by the upper and lower boundary surfaces that are conjugate to each other along the radius of GO-20
    In the well-known piston, with a sufficient size of the oil-trenching groove, the necessary level of oil sludge is provided, but the strength of the bridge between the oil-trap COMFINED decreases.
    The upper and outer ring grooves, while maintaining the same strength of the web, the dimensions of the oil trench with the preservation of the piston height are insufficient, which leads to an increase in carbon deposition on the side surface of the piston above the upper annular groove.
    The aim of the invention is to increase the reliability of the piston by reducing the formation of oil deposits.
    权利要求:
    Claims (1)
    [1]
    The goal is achieved in that the cross section in the cross section is made in the form of a beam with constant bending stress, and the upper and lower boundary surfaces are divergent relative to a plane perpendicular to the side surface of the piston, and the angle of inclination of the lower boundary surface of the oil-trenching groove to said the plane is 2.5 times smaller than the angle of inclination of the upper boundary surface to the same plane, 39 In FIG. 1 shows a section of the top of the piston suit; in fig. Figure 2 shows a cross section of a web between the top and oil-trenching grooves for an approximate calculation. The piston comprises a housing 1 in which several annular grooves 2-k for the piston rings are made in the upper part. Under the upper annular groove 2, there is an oil catching groove S, separated from it by a jumper 6 having a final height 7 on the side surface 8 of the piston. The subdisciplinary groove 5 is made open to the side of the side surface O of the piston and is formed by the upper 9 and lower 10 boundary surfaces conjugated along the radius 11, the upper 9 and lower 10 boundary surfaces are divergent from the plane 12 perpendicular to the lateral surface a piston 8, wherein the angle of inclination about the upper boundary surface 9 and said plane 12 is determined from the condition that the jumper 6 in cross section is made in the form of a beam with a constant voltage. for bending, and the angle of inclination of the lower boundary surface 10 to the same plane 12 is 2.5 times smaller than the angle between the oil-trenching groove 5 and the next annular groove 3, the partition 13 is also provided with a separation section k. To determine the angle angle, an approximate calculation of the cross section of jumper 6 as a cantilever beam, satisfying the condition of maintaining a constant bending stress along its length, is carried out. Take the final height 7 of the jumper 6 on the side surface 8 of the piston is equal to N, force P acting on the jumper, as a distributed load. Consider this set as a flat model with a groove depth substantially smaller than the diameter of the piston. The bending moment Mg, measured at distances x from the side surface 8 of the piston, is determined from the ratio Allowable bending stress GO. calculated from the ratio Op -B W0 where Wtt is the moment of resistance, which for the rectangle is W..bi b, where h is the corresponding jumper height at a selected distance X. Based on this, to ensure the greatest oil-trench groove h (x) xc / .P or tgo (. When the engine is running, the oil falling on the side surface of the piston is collected in the oil trench, and the selected angles of inclination of its limiting surfaces provide metered oil supply to the upper piston ring, the oil distribution on the side Piston performance and necessary oil change in the groove. This embodiment of the piston improves its reliability by reducing the formation of oil sludge while maintaining its strength. Invention Piston for an internal combustion engine with high power, comprising a housing, several annular grooves for piston rings and an oil catching groove located below the upper annular groove, separated by a jumper from the upper annular groove, open on the side of the side surface of the piston and formed by upper and lower boundary surfaces that are interconnected along the radius, characterized in that, in order to increase reliability by reducing the formation of oil sludge, the jumper in cross section is made in the form of a beam with a constant bending stress, and The boundary surfaces are made divergent with respect to a plane perpendicular to the side surface of the piston, and the angle of inclination of the lower boundary surface of the oil-trenching groove to this plane is 2.5 times less than the angle of inclination of the upper its boundary surface to the same plane. Sources of information taken into account in the examination 1. Patent of Germany No. 2026272, Kii. F 02 F 5/00, published 1977. t y /////////////////. / //// t //////////, h% iv “r //, - L X
    类似技术:
    公开号 | 公开日 | 专利标题
    SU936824A3|1982-06-15|Piston for internal combustion engine
    FR2440986A1|1980-06-06|LUBRICATING OIL COMPOSITION BASED ON DIETHANOLAMINE FATTY ACID DERIVATIVE
    FR2354451A1|1978-01-06|PISTON FOR INTERNAL COMBUSTION ENGINE
    JPS55164745A|1980-12-22|Cylinder and cylinder liner
    EP0251393A2|1988-01-07|Pistons
    KR860001284A|1986-02-24|Specially shaped piston with piston ring
    JP2852521B2|1999-02-03|Plain bearings for internal combustion engines
    US4774917A|1988-10-04|Piston and piston ring for an internal combustion engine
    JPH02271060A|1990-11-06|Piston
    SU723200A1|1980-03-25|Piston
    SU1236135A1|1986-06-07|Bimetal piston for internal combustion engine
    JPH04351347A|1992-12-07|Balance shaft of internal combustion engine
    JPS555413A|1980-01-16|Bearing lubricating construction for 2-cycle engine of vertical-crankshaft type
    JPS5776096A|1982-05-12|Lubricant oil composition
    SU635332A1|1978-11-30|Piston-to-rod joint
    US2415213A|1947-02-04|Engine rocker arm
    SU953237A1|1982-08-23|Non-return valve of i.c. engine piston with automatic control of compression degree
    SU840443A1|1981-06-23|I.c. engine carburettor acceleration pump piston
    JPS53125520A|1978-11-01|Valve movement equipment for internal combustion engine
    SU1643764A1|1991-04-23|Internal combustion engine piston
    JPS6296597A|1987-05-06|Lubricating oil
    RU2015389C1|1994-06-30|Piston ring
    JPS57151043A|1982-09-18|Cylinder for internal combustion engine
    FR2588609B1|1989-07-28|LEVEL REGULATOR, PARTICULARLY FOR INTERNAL COMBUSTION ENGINE OIL PAN.
    RU95114172A|1997-08-10|TRIGGER PISTON - INTERNAL COMBUSTION ENGINE CYLINDER
    同族专利:
    公开号 | 公开日
    IN151839B|1983-08-13|
    SE7905742L|1979-12-31|
    IT7923945D0|1979-06-28|
    GB2028464B|1982-08-11|
    FR2429897A1|1980-01-25|
    DE2828749C2|1983-10-20|
    JPS5510099A|1980-01-24|
    GB2028464A|1980-03-05|
    DD144584A1|1980-10-22|
    DE2828749A1|1980-01-10|
    FR2429897B1|1987-07-24|
    JPS6229626B2|1987-06-26|
    HU179765B|1982-12-28|
    RO77466A|1981-11-04|
    IT1165129B|1987-04-22|
    US4383509A|1983-05-17|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US1419928A|1919-04-28|1922-06-20|Kirk D Holland|Piston|
    US1492397A|1922-05-25|1924-04-29|Edward F F Roberts|Piston for internal-combustion engines|
    US1504448A|1922-05-31|1924-08-12|Charles C Hanch|Piston|
    FR770796A|1934-03-27|1934-09-20|Piston seal|
    US2187724A|1936-11-30|1940-01-23|Herman Howie Uhli|Piston and ring assembly|
    DE950763C|1951-08-26|1956-10-18|Augsburg Nuernberg A G Zweigni|Piston seal for high pressure steam engines|
    US3187643A|1963-09-24|1965-06-08|Mirrlees Nat Ltd|Pistons for internal combustion engines|
    US3251349A|1964-01-09|1966-05-17|Continental Aviat & Eng Corp|Piston construction|
    CH493739A|1968-07-08|1970-07-15|Sulzer Ag|Working piston of a piston internal combustion engine|
    DE2026272C3|1970-05-29|1975-03-27|Maschinenfabrik Augsburg-Nuernberg Ag, Zweigniederl. Nuernberg, 8500 Nuernberg|Pistons for internal combustion engines|
    JPS529921Y2|1973-04-20|1977-03-03|
    GB1519589A|1974-09-11|1978-08-02|Brico Eng|Metal articles of aluminium having load-bearing inserts|
    DE2512218B2|1975-03-20|1979-07-19|Maschinenfabrik Augsburg-Nuernberg Ag, 8500 Nuernberg|Spark ignition four-stroke internal combustion engine with a combustion chamber arranged in the piston|
    DE2533746A1|1975-07-28|1977-02-03|Alcan Aluminiumwerke|Internal combustion engine piston - has ring insert of harder wearing material accommodated in groove|
    DE2646922A1|1976-10-18|1978-04-20|Schmidt Gmbh Karl|SUBMERSIBLE PISTON|GB1591124A|1976-10-19|1981-06-17|Blaser Richard Florencio|Method and apparatus for control of pressure in internal combustion engines|
    JPS58165238U|1982-04-30|1983-11-02|
    DE3511836C1|1985-03-30|1986-10-09|M.A.N.- B & W Diesel GmbH, 8900 Augsburg|Built-up reciprocating piston of an internal combustion engine|
    JPH0444631B2|1985-12-11|1992-07-22|Ngk Insulators Ltd|
    JPH0444632B2|1987-04-06|1992-07-22|Ngk Insulators Ltd|
    JPH0417128A|1990-05-10|1992-01-21|Sharp Corp|Tilt adjusting mechanism for objective lens driving device|
    JP2579840Y2|1992-06-22|1998-09-03|株式会社リケン|High top ring piston|
    BR9203717A|1992-09-18|1994-03-22|Metal Leve Sa|INTERNAL COMBUSTION ENGINE PUMP|
    US5477821A|1995-04-05|1995-12-26|Cummins Engine Company, Inc.|Piston for internal combustion engine|
    DE19703121C1|1997-01-29|1998-05-07|Ae Goetze Gmbh|Piston for internal combustion engine|
    SE517959C2|1997-12-30|2002-08-06|Volvo Car Corp|Internal combustion engine|
    SE521723C2|1998-12-29|2003-12-02|Volvo Car Corp|Piston|
    DE10340292A1|2003-09-02|2005-04-14|Mahle Gmbh|Piston for an internal combustion engine|
    JP2005226522A|2004-02-12|2005-08-25|Riken Corp|Piston device for internal combustion engine|
    DE102004057558A1|2004-11-30|2006-06-01|Mahle International Gmbh|Piston for internal combustion engine has base component consisting of forged aluminum and ring element of ni-resist, with closed annular cooling passage located between base component and ring element|
    DE102007016945A1|2007-04-05|2008-10-30|Mahle International Gmbh|Piston for an internal combustion engine|
    DE102007057840A1|2007-11-30|2009-06-04|Ks Kolbenschmidt Gmbh|Function-optimized design of the piston ring field area in steel pistons|
    DE102008035697A1|2008-07-30|2010-02-18|Mahle International Gmbh|Piston for internal combustion engine, comprises piston shaft and piston head or piston ring element, which has circulating ring portion or circulating fire land|
    EP2284422B1|2009-08-12|2012-11-07|Doosan Infracore Co., Ltd.|Piston for engine having stable behavior of piston ring|
    CN102425505A|2011-12-19|2012-04-25|重庆理工大学|Piston with special skirt part profile shape|
    CN104564320B|2014-12-12|2017-10-13|陶凝|A kind of multi-level throttle plavini of engine energy-saving emission reduction|
    KR101936468B1|2016-10-11|2019-01-08|현대자동차주식회사|Piston Assembly with Improving Lubrication Performance|
    KR101977911B1|2017-08-17|2019-05-13|동양피스톤 주식회사|Piston for internal combustion engine and its manufacturing method|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE19782828749|DE2828749C2|1978-06-30|1978-06-30|Pistons for internal combustion engines|
    [返回顶部]