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公开(公告)号：EP2409014A1
公开(公告)日：2012-01-25
申请号：EP10700440.0
申请日：2010-01-20
申请人： Robert Bosch GmbH
CPC分类号： F02M59/06 , F02M59/102 , F04B1/0408 , F04B1/0417 , F04B1/0426 , Y10T74/2107
摘要： The invention relates to a high pressure pump for a fuel injection device of an internal combustion engine, comprising at least one pump element having a pump piston delimiting a pump working chamber, wherein between the pump piston and a rotationally driven drive shaft of the high pressure pump, a tappet assembly having a tappet body and a roller shoe pressed into a receptacle of the tappet body is provided, wherein the tappet body comprises a centering guide for pressing in the roller shoe. The invention further relates to a tappet assembly for a high pressure pump for a fuel injection device of an internal combustion engine comprising a tappet body and a roller shoe pressed into a receptacle of the tappet body, wherein the tappet body comprises a centering guide for pressing in the roller shoe.
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2.发明授权
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公开(公告)号：EP2052132A1
公开(公告)日：2009-04-29
申请号：EP07787117.6
申请日：2007-07-05
申请人： Robert Bosch GmbH
CPC分类号： F02M59/445 , F16D1/101
摘要： The invention relates to a fuel injection pump for an internal combustion engine, which fuel injection pump, for the drive of the same, is connected in a torque-transmitting manner by means of a clutch unit (1) to a drive input member, wherein the clutch unit (1) has a claw hub (10) which is arranged on the drive input member and is axially fixed and is driven in rotation, and wherein the rotational movement can be transmitted to a reciprocating and rotating pump member (11), and wherein the claw hub (10) and the pump member (11) have respective claws (12, 13) which are aligned counter to one another and which comprise lateral claw faces (15) between which is arranged a star-shaped and/or tongue-groove-like transmission body (14) which, for the transmission of the torque, adjoins the respective claw faces (15), wherein the claw faces (15) are formed with an outwardly arched, spherical surface in order to create at least one defined zone of force introduction from the transmission body (14) into the claw face (15), such that the stresses which occur in the claw (12, 13) as a result of the force transmission can be reduced. In this way, a fuel injection pump for an internal combustion engine with a clutch unit (1) is created which permits a long service life while at the same time permitting the transmission of large torques, and at the same time has a simple structural design.
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4.发明公开
公开(公告)号：EP3353411A1
公开(公告)日：2018-08-01
申请号：EP16754216.6
申请日：2016-08-02
申请人： Robert Bosch GmbH
CPC分类号： F02M63/0017 , F02M59/367 , F02M63/0035 , F02M2200/04 , F02M2200/70
摘要： The invention relates to a valve, in particular a suction valve, in a high-pressure pump of a fuel injection system, comprising a valve element (14) which moves between an open position and a closed position, and which is connected to an actuation element (8, 10). Both elements are in mechanical contact at least indirectly with one another. It is now possible for the actuation element (8, 10) to transmit an actuation force to the valve element (14), in order to move same into an open state. According to the invention, the contact surface between the two elements is provided with trough-shaped recesses (20), in order to separate the mechanical contact region (24) between the two elements from the cavitation region (22).
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公开(公告)号：EP2409014B1
公开(公告)日：2013-05-01
申请号：EP10700440.0
申请日：2010-01-20
申请人： Robert Bosch GmbH
CPC分类号： F02M59/06 , F02M59/102 , F04B1/0408 , F04B1/0417 , F04B1/0426 , Y10T74/2107
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公开(公告)号：EP2052132B1
公开(公告)日：2011-02-16
申请号：EP07787117.6
申请日：2007-07-05
申请人： Robert Bosch GmbH
CPC分类号： F02M59/445 , F16D1/101
摘要： The invention relates to a fuel injection pump for an internal combustion engine, which fuel injection pump, for the drive of the same, is connected in a torque-transmitting manner by means of a clutch unit (1) to a drive input member, wherein the clutch unit (1) has a claw hub (10) which is arranged on the drive input member and is axially fixed and is driven in rotation, and wherein the rotational movement can be transmitted to a reciprocating and rotating pump member (11), and wherein the claw hub (10) and the pump member (11) have respective claws (12, 13) which are aligned counter to one another and which comprise lateral claw faces (15) between which is arranged a star-shaped and/or tongue-groove-like transmission body (14) which, for the transmission of the torque, adjoins the respective claw faces (15), wherein the claw faces (15) are formed with an outwardly arched, spherical surface in order to create at least one defined zone of force introduction from the transmission body (14) into the claw face (15), such that the stresses which occur in the claw (12, 13) as a result of the force transmission can be reduced. In this way, a fuel injection pump for an internal combustion engine with a clutch unit (1) is created which permits a long service life while at the same time permitting the transmission of large torques, and at the same time has a simple structural design.
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