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    • 5. 发明专利
    • AT483907T
    • 2010-10-15
    • AT07788020
    • 2007-07-30
    • BOSCH GMBH ROBERT
    • FUCHS WALTER
    • F02M59/10F04B1/04F16H53/06
    • The invention relates to a tappet assembly for a high-pressure pump, especially for the prose of fuel supply, and to a high-pressure pump including such a tappet assembly. The tappet assembly has a hollow cylindrical tappet base into which a roller support is inserted in the direction of the longitudinal axis of the tappet base. A roller is rotatably received in the roller support. The roller support is arranged at a right angle to the rotational axis of the roller with little or no play in the tappet base and in the direction of the rotational axis of the roller with larger play than at a right angle to the rotational axis of the roller in the tappet base. As a result, the roller support can perform a limited tilting motion in the tappet base, thereby allowing the rotational axis of the roller to be aligned in relation to the rotational axis of a driving shaft driving the tappet assembly in a lifting motion and avoiding edge loading of the roller on a cam or avoiding the need for eccentrics on the driving shaft.