• 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:
    Flat-faced tappets, especially for valve trains in reciprocating internal combustion engines, having a shaft with a substantially cup-shaped transmission end adapted to cooperate with other parts of the valve train, a cam follower member of a highly elastic material and a hollow space between the cam follower member and the transmission end allowing resilient deflection of the cam follower member at least in the region in which the cam runs against the cam follower member.
    公开号:SU990084A3
    申请号:SU792798347
    申请日:1979-08-08
    公开日:1983-01-15
    发明作者:Фурманн Вольфганг
    申请人:Машиненфабрик Аугсбург-Нюрнберг Аг (Фирма)；
    IPC主号:
    专利说明:

    (54) FLAT POSITION FOR GAS DISTRIBUTION VALVE DRIVE
    The invention relates to machine building and can be used in gas distribution mechanisms of internal engines. five
    Flat pushers are known for driving gas valves and distributing an internal combustion piston engine, comprising a rod, a base facing the cam and a transfer surface interacting with the drive elements, and in the area of the cam running to the pushrod base, a cavity is formed between the base and the transmitting surface. razshchenna to the base of the pusher and png kshkka tsa directly to him II3
    A disadvantage of the known pushers is the wear of parts of the pusher at 2 (j dynamic loads.
    The purpose of the invention is to increase the wear resistance., F
    The goal is reached, | 25 that the base of the pusher is made of high-ductile tool steel and has a thickness that ensures its deviation in the direction to the cavity when the cam enters. ZO
    The rod is provided with air and / or oil ducts connected to the cavity.
    The cavity has the form of a trapezoid in cross section.
    The rod is made with a flat at the end facing the base of the pusher, and the latter is provided with a protrusion facing the rod and a corresponding flat form, the base of the pusher and the rod are connected to the corresponding surface of the flat and the protrusion by welding.
    The rod and the base of the pusher are made in the form of a single part obtained with the help of deep drawing, a part provided with an insert, and the transfer surface and the cavity are made in the latter.
    FIG. 1 shows a flat pusher, a slit; in fig. 2 - the same; with a trapezoid-shaped cavity; in fig. 3 - the same, the core and the base are formed in one piece; in fig. 4 - the same, the rod is made with a flat on the end facing the base, and the latter is equipped with a protrusion.
    The flat pusher consists of a rod 1 and a pusher 2 welded to it around the circumference of the base 2, made of highly elastic tool steel.
    In the lower end of the rod 1, a recess is provided in the form of a part of a sphere, due to which a cavity 3 is formed between the rod 1 and the base 2. The base of the pusher has a thickness that ensures its deviation in the direction of the cavity 3 when the cam races. The upper part of the rod 1 forms the transmitting surface 4, which interacts with the drive elements, for example, with a shear (not shown),
    The cavity 3 (Fig. 2) has a trapezoidal shape in cross section, and the base 2 is provided with a centering ring 5, INCLUDING into the collar b of the rod 1. In addition, the rod 1 is provided with channels 7 for air and / or oil. Filling the cavity 3 with oil has a definite advantage, since due to this, a damping effect is achieved.
    Rod 1 and base 2 push. The l (Fig. 3) is made in the form of one, obtained by deep-drawing a part, provided with an insert 8, and the transfer surface 4 and the cavity 3 are made c. last one.
    The rod 1 is made with a flat 9 at the end (FIG. 4) facing the base 2 of the pusher, and the latter is provided with a protrusion 10 facing the rod 1 and the corresponding shape of the flat 9. The base 2 of the pusher and the rod 1 are joined by welding in this way that the mezkdu lower end of the rod and the base forms a gap that serves as a damping cavity.
    When the engine is running, when the cam hits the base of the pusher, the latter easily resists and weakens the action of the shock loads.
    While the pushers in FIG. 1-3, it is not necessary to insure against cranking; this is strictly necessary in the pusher of FIG. 4. The thickness of the base of the pusher according to FIG. 1-3, depending on the cavity width, is 1-4 mm, while for the pusher of FIG. 4, it is 10 mm.
     Thus, the implementation of the proposed pusher reduces wear on the base.
    权利要求:
    Claims (5)
    [1]
    1. A flat pusher for actuating the valve timing valves of an internal combustion piston engine, comprising a rod, a base facing the cam and a transmitting surface interacting with the drive elements, the cavity facing the base, the pushing angle, between the base and the transmitting surface. to the base of the pusher and directly adjacent to it, characterized in that
    in order to increase wear resistance, the base of the pusher is made of highly elastic tool steel and has a thickness that ensures its deviation in the direction towards the cavity when the cam is running over.
    [2]
    2. A pusher according to claim 1, characterized in that the rod is provided with air and / or oil channels connected to the cavity.
    [3]
    3. A pusher according to claim 1, characterized in that the cavity has a trapezoid shape in cross section.
    [4]
    4. A pusher according to claim 1, characterized in that the rod is made with a flat on the end facing the base of the pusher, and the latter is provided with a protrusion facing
    in the direction of the rod and corresponding in shape, the base, the base of the pusher and the rod are connected to the corresponding surfaces of the face and the protrusion by welding.
    [5]
    5. A pusher according to claim 1, characterized in that the rod and the base of the pusher are made as one, obtained by deep drawing, a part provided with inserts, and the transfer surface and the cavity are made in the latter,
    Sources of information taken into account in the examination
    1. GDR patent number 15304, cl. 46 in 5/02, publ. 1958.
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    类似技术:
    公开号 | 公开日 | 专利标题
    SU990084A3|1983-01-15|Flat tappet for actuating gas distribution valves
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    CA2470834A1|2003-08-14|Switch element for valve actuation in an internal combustion engine
    SU971113A3|1982-10-30|Hydraulic tappet
    US3572299A|1971-03-23|Valve-actuating train for machinery having a cyclicly operated poppet valve
    ES289539U|1986-03-01|Automatic hydraulic lash-adjusting tappet.
    US5168772A|1992-12-08|Camshaft arrangement and method for producing it
    US3267919A|1966-08-23|Tappet anti-rotating device
    US4966068A|1990-10-30|Split ceramic piston ring arrangement with nested biasing ring
    US5284112A|1994-02-08|Valve operating mechanism including valve lifter
    US4436063A|1984-03-13|Push rod for operating an intake or exhaust valve of an internal combustion engine
    US3096750A|1963-07-09|Overhead camshaft engine valve mechanism
    US10001035B2|2018-06-19|Hydraulic lash adjuster
    US3037494A|1962-06-05|Self adjusting valve guide
    JPH08240266A|1996-09-17|Oil ring in which side face and gap are sealed
    US2065817A|1936-12-29|Piston ring
    US2060335A|1936-11-10|Piston valve packing
    US2369566A|1945-02-13|Rotary valve
    US2222730A|1940-11-26|Valve for engines and the like
    US4356799A|1982-11-02|Spring retainer-valve selector
    US10458287B1|2019-10-29|Cover assembly for a pushrod tube
    SU377529A1|1973-04-17|DRIVE OF INTERNAL ENGINE VALVES
    US3174760A|1965-03-23|Piston ring
    同族专利:
    公开号 | 公开日
    DD145651A1|1980-12-24|
    GB2028955B|1982-10-27|
    US4317433A|1982-03-02|
    DE2835912A1|1980-02-28|
    JPS5529090A|1980-03-01|
    DE2835912C2|1981-12-03|
    FR2433634A1|1980-03-14|
    BR7905289A|1980-05-13|
    IT7924986D0|1979-08-08|
    GB2028955A|1980-03-12|
    SE7906836L|1980-02-17|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US1372874A|1921-03-29|Valve mechanism |
    US1613117A|1923-04-23|1927-01-04|Jacob C Miller|Cushioned valve tappet|
    US1588078A|1924-03-31|1926-06-08|Samuel T Windsor|Valve silencer|
    US1993473A|1930-03-07|1935-03-05|Clare L Brackett|Valve assembly|
    US2055341A|1934-07-05|1936-09-22|Wilcox Rich Corp|Method of making tappets|
    GB1488832A|1974-04-16|1977-10-12|Chrysler Uk|Valve tappets|
    DE2526656A1|1975-06-14|1976-12-23|Wizemann & Co J|Valve rod for IC engine - has hollow shaft electron welded to base of harder material|DE3308550C2|1983-03-10|1989-08-24|Man Nutzfahrzeuge Gmbh, 8000 Muenchen, De|
    JPS60152556A|1984-01-18|1985-08-10|Nippon Ester Co Ltd|Flame proof polyester composition|
    JPH037003B2|1985-01-18|1991-01-31|Toyota Motor Co Ltd|
    JPS62188505U|1986-05-21|1987-12-01|
    US5060607A|1989-06-21|1991-10-29|Ngk Spark Plug Co., Ltd.|Tappet structure|
    JPH0518213A|1990-07-20|1993-01-26|Ngk Spark Plug Co Ltd|Tappet for engine|
    JP2817121B2|1991-03-18|1998-10-27|日本特殊陶業株式会社|Manufacturing method of tappet for engine|
    US5662076A|1996-04-19|1997-09-02|Fuji Oozx Inc.|Tappet in an internal combustion engine|
    JPH10148106A|1996-11-19|1998-06-02|Fuji Oozx Inc|Tappet for aluminum made internal combustion engine and manufacture thereof|
    JP3733928B2|2002-05-28|2006-01-11|三菱電機株式会社|High pressure fuel supply device|
    US7273026B2|2002-10-18|2007-09-25|Maclean-Fogg Company|Roller follower body|
    US8656806B2|2011-04-07|2014-02-25|Harris Corporation|Cam system having compliant follower|
    US10119607B2|2016-04-15|2018-11-06|Koyo Bearings North America Llc|Follower mechanism|
    US11149593B2|2019-10-03|2021-10-19|Koyo Bearings North America Llc|Tappet assembly with formed anti-rotation alignment device|
    US11143059B2|2019-10-03|2021-10-12|Koyo Bearings North America Llc|Tappet assembly with unground outer cup|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE19782835912|DE2835912C2|1978-08-16|1978-08-16|Flat tappets for valve drives|
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