公开(公告)号：US5673662A

公开(公告)日：1997-10-07

申请号：US730110

申请日：1996-10-15

Applicant: Flavio Rigamonti

Inventor： Flavio Rigamonti

IPC: F01L1/24 ,  F01L1/25

CPC classification number: F01L1/25 ,  Y10T74/2107

Abstract: A direct-acting hydraulic tappet having a cup-like tappet body which includes a cylindrical projection extending inwardly from the base of the body and in which the hydraulic element of the tappet is received. A resiliently deformable diaphragm is received in the space formed between the peripheral wall of the tappet body and the cylindrical projection. The diaphragm defines two concentric outer and inner annular wells for allow oil entering the tappet body from an external source to overflow from the outer well into the inner well to provide a supply of deaerated oil to the low pressure inner chamber of the tappet. The diaphragm is fixed to the tappet body by being received in slots formed in the body and in the cylindrical projection, or by means of a press fit therein.

Abstract translation: 一种具有杯形挺杆本体的直动式液压挺杆，其包括从主体的基部向内延伸的圆柱形凸起，并且其中容纳挺杆的液压元件。 可弹性变形的隔膜被容纳在形成在挺杆本体的周壁和圆柱形突起之间的空间中。 隔膜限定了两个同心的外部和内部环形孔，用于允许油从外部源进入挺杆本体，以从外部井溢出到内部井中，以向挺杆的低压内部室供应脱气油。 隔膜通过容纳在形成在主体中的槽中和在圆柱形突起中或通过压配合而固定到挺杆体上。