• 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:
    Modular cast iron piston for an internal combustion engine, with oil cooling of at least the head and some of the piston ring grooves, and comprising an annular cooling chamber located in the piston head in proximity at least to the groove of the first piston ring and corresponding in configuration to said piston head and promoting the transmission of thrust forces directly to the boss forming the bearing of the connecting-rod small end.
    公开号:SU731911A3
    申请号:SU711617008
    申请日:1971-02-15
    公开日:1980-04-30
    发明作者:Хауг Альберт
    申请人:Сосьете Д,Этюд Де Машин Термик (Фирма)；
    IPC主号:
    专利说明:

    one
    This invention relates to internal combustion engines.
    Monoblock nodules made of nodular cast iron for internal combustion engines, nairimer diesel, containing a thin-walled bottom connected to the skirt, an annular chamber located in the grooves of the piston compression rings, for circulating cooling medium, and lugs for installing the crankshaft piston ring are known.
    The fluid circulating in the internal cavities of the piston washes the end surface of the bottom and the installation areas of the norshiye rings, and the forces arising from the ignition of gases in the combustion chamber are transmitted to the crankshaft-connecting rod; mechanism and repetitively through the piston skirt.
    However, with an increase in diesel engine speed and workforce forcing, there is a significant increase in both physical and thermal loads on the piston skirt, which, among other things, is subjected to intensive ptiraium during the transfer of the latter. This significantly reduces the reliability of the piston, especially those of its elements, which are not intensively cooled by circulating a cooling medium.
    The aim of the invention is to increase the reliability of monoblock pistons by unloading the piston skirt.
    The goal is achieved by the fact that the bosses are connected to the bottom by vertical ribs, which pass into the inclined side walls of the annular chamber, and
    10 with the piston skirt — lateral ribs perpendicular to their longitudinal axis.
    Pa figs. 1 shows a monoblock piston in longitudinal section along the axis of the bosses; on
    io of FIG. 2 - the same, in a longitudinal section along a plane perpendicular to the axis of the bosses. A one-piece piston made of cast iron with a shar151; single graft for internal combustion engine, for example, a diesel engine, contains
    20 bottom 1, associated with the skirt 2, an annular chamber 3 for circulating a cooling medium located in the zone of the grooves 4 for compression rings and sleeves. Lugs 5 and 6 Norsch} 1 tied to bottom 1
    25 Hertikalpami ribs 7, passing into the side walls 8 and 9 of the annular chamber 3, and the skirt 2 and the stern is connected with the lugs 5 and 6 of the side ribs 10 and 11, located perpendicular to their longitudinal axis.
    In the course of operation, the pistons of the forces transmitted to its dihische during the combustion of gases are transmitted to the bosses in the axis through the sloping side walls, forming an annular chamber in the area of the grooves for the piston rings, and vertical ribs associated with the bosses, and only an effective force it is transmitted through the piston skirt by means of side ribs located perpendicular to the longitudinal axis of the bosses.
    In this way, a significant unloading of the Porsche's skirt from mechanical longitudinal forces is carried out, which contributes to improving the reliability of the monoblock piston as a whole, especially in high-speed engines.
    权利要求:
    Claims (1)
    [1]
    Invention Formula
    Monoblock nodular cast iron piston for an internal combustion engine, such as a diesel engine, containing a bottom connected to the skirt, an annular chamber for circulating a cooling medium located in the area of the grooves of the compression rings, and a boss, characterized in that, in order to increase reliability by unloading the piston skirt, the bosses are connected to the bottom by vertical ribs, which pass over the inclined side walls of the annular chamber, and to the piston skirt — by the lateral ribs located perpendicular to their longitudinal axis.
    Sources of information taken into account in the examination 1. US Patent No. 2379359, cl. 92-186, onubl. 1941 (nrotiotype).
    类似技术:
    公开号 | 公开日 | 专利标题
    SU731911A3|1980-04-30|Cast-iron monoblock piston
    US2067049A|1937-01-05|Internal combustion engine
    US3851631A|1974-12-03|Die cast v-type two-cycle engine
    US2851020A|1958-09-09|Cylinder construction for an internal combustion engine
    JPH0613861B2|1994-02-23|Two-cycle engine piston
    US2184820A|1939-12-26|Internal combustion engine
    US1764739A|1930-06-17|Internal-combustion engine
    US3020707A|1962-02-13|Engine exhaust manifold construction
    US2753231A|1956-07-03|Reciprocating internal combustion engine and pistons
    US3897770A|1975-08-05|Water-cooled reciprocable piston engine with a single piece integral cylinder and cylinder head
    US2627255A|1953-02-03|Two-cycle engine and method of operating the same
    US1350260A|1920-08-17|Two-cycle rotary-cylinder internal-combustion engine
    US2384401A|1945-09-04|Internal-combustion engine
    US2792818A|1957-05-21|Two-cycle internal combustion engine
    US1898145A|1933-02-21|Composite cylinder for internal combustion engines
    US1329822A|1920-02-03|Composite piston for internal-combustion motors
    US1579664A|1926-04-06|Separate combustion chamber for double-piston engines
    US1873994A|1932-08-30|Internal combustion engine
    US1587343A|1926-06-01|Internal-combustion engine
    US1477591A|1923-12-18|Internal-combustion engine
    US1343161A|1920-06-08|Cylinder for internal-combustion engines
    US1615458A|1927-01-25|Internal-combustion engine
    US1791133A|1931-02-03|Internal-combustion motor
    US1185691A|1916-06-06|Internal-combustion engine.
    US1770332A|1930-07-08|Piston for internal-combustion engines
    同族专利:
    公开号 | 公开日
    NO133945C|1976-07-21|
    DE2106923A1|1971-11-18|
    NL7102008A|1971-08-18|
    SE376955B|1975-06-16|
    FI57302C|1980-07-10|
    NO133945B|1976-04-12|
    DK131740C|1976-02-16|
    FR2079873A5|1971-11-12|
    US3703126A|1972-11-21|
    DK131740B|1975-08-25|
    NL164117C|1980-11-17|
    CH526041A|1972-07-31|
    FI57302B|1980-03-31|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    CA479138A|1951-12-04|Allen Holt George|Pistons|
    US1756211A|1928-12-19|1930-04-29|Reid Piston Company|Piston and connecting rod|
    GB373299A|1931-03-02|1932-05-26|William Lewis Treseder|Improvements in, or relating to, pistons|
    CH196043A|1936-02-19|1938-02-28|Paul Fatio|Piston.|
    US2428602A|1944-01-12|1947-10-07|Frank B Yingling|Connecting rod assembly|
    US2742883A|1953-07-15|1956-04-24|Frank J Smith|Oil cooled piston structure|
    US2865348A|1955-03-23|1958-12-23|Schmidt Gmbh Karl|Piston|FR2238372A5|1973-07-19|1975-02-14|Dampers|
    AU503148B2|1975-06-16|1979-08-23|Cummins Engine Company, Inc|Piston with flexible heat dam|
    CS201273B1|1978-06-22|1980-10-31|Miroslav Novotny|Piston from the alloyed perlitic plastic cast iron for the ignition engines|
    DE2829494A1|1978-07-05|1980-01-17|Mahle Gmbh|OIL COOLED PISTON FOR COMBUSTION ENGINES|
    DE3502644A1|1985-01-26|1986-07-31|M.A.N.-B & W Diesel GmbH, 8900 Augsburg|OIL-COOLED, MULTI-PIECE SUBMERSIBLE PISTON FOR PISTON PISTON COMBUSTION ENGINES|
    DE3511852C1|1985-03-30|1987-01-02|Man B & W Diesel Gmbh|Oil-cooled monoblock trunk piston for internal combustion engines|
    US6327962B1|1999-08-16|2001-12-11|Caterpillar Inc.|One piece piston with supporting piston skirt|
    DE10214830A1|2002-04-04|2004-01-08|Mahle Gmbh|Oil inlet for a piston of an internal combustion engine provided with a cooling channel|
    DE10244513A1|2002-09-25|2004-04-08|Mahle Gmbh|Multi-part cooled piston for an internal combustion engine and method for its production|
    DE10255732A1|2002-11-29|2004-06-09|Mahle Gmbh|Pin hub of a piston for an internal combustion engine|
    FR2848129B1|2002-12-05|2006-01-27|Ascometal Sa|METHOD FOR MANUFACTURING A PISTON FOR AN EXPLOSION ENGINE, AND A PISTON THUS OBTAINED|
    DE10325917A1|2003-06-07|2005-03-31|Mahle Gmbh|Piston for an internal combustion engine and casting process for its production|
    US7406941B2|2004-07-21|2008-08-05|Federal - Mogul World Wide, Inc.|One piece cast steel monobloc piston|
    US20060060164A1|2004-09-20|2006-03-23|Gerfast Sten R|Internal combustion engine without oil|
    US7293497B2|2005-11-03|2007-11-13|Dresser, Inc.|Piston|
    US7302884B2|2005-11-03|2007-12-04|Dresser, Inc.|Piston|
    US7845269B2|2007-04-10|2010-12-07|Federal-Mogul Worldwide, Inc.|Piston with pin bore lubrication features|
    DE102011114105A1|2010-12-18|2012-06-21|Mahle International Gmbh|Piston for an internal combustion engine and method for its production|
    US8544441B2|2011-08-04|2013-10-01|Federal-Mogul Ignition Company|Piston including a pair of cooling chambers|
    US8955486B2|2012-02-10|2015-02-17|Federal Mogul Corporation|Piston with enhanced cooling gallery|
    WO2013126365A1|2012-02-20|2013-08-29|Federal-Mogul Corporation|Piston assembly for internal combustion engine|
    WO2015124749A1|2014-02-21|2015-08-27|Ks Kolbenschmidt Gmbh|Piston with an open cooling chamber having a flow-effective oil guiding surface and method for cooling said piston|
    US9759119B2|2015-01-14|2017-09-12|Achates Power, Inc.|Piston cooling for opposed-piston engines|
    JP2017190713A|2016-04-13|2017-10-19|トヨタ自動車株式会社|Internal combustion engine|
    DE102017207005A1|2017-04-26|2018-10-31|Federal-Mogul Nürnberg GmbH|One-piece, cast piston for an internal combustion engine|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FR7005425A|FR2079873A5|1970-02-16|1970-02-16|
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