公开(公告)号：US20190085735A1

公开(公告)日：2019-03-21

申请号：US16084688

申请日：2017-02-07

Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.

Inventor： Kuninaga HATSUGAI ,  Kenji SATO ,  Yoshinori ICHINOSAWA

IPC: F01L1/344

Abstract: It includes: a housing (7) to which a torque is transmitted from a crankshaft; a vane rotor (8) mounted inside the housing and includes a cylindrical rotor (20) fastened to a camshaft (2) by a cam bolt (5); and a groove portion (47) formed at a distal end surface of a tubular part (23) of the rotor and has a lateral surface (47a) in a direction opposite to a direction of fastening of the cam bolt. The lateral surface includes an inside edge (47d) in a radial direction of the rotor, and is inclined in the direction opposite to the direction of fastening of the cam bolt, with respect to a first imaginary plane (S1) containing the inside edge and a rotational axis (O) of the vane rotor. This serves to suppress rotation of the vane rotor during bolting the vane rotor to the camshaft, and suppress deformation due to the suppression of rotation.

公开(公告)号：US20180187610A1

公开(公告)日：2018-07-05

申请号：US15740555

申请日：2016-06-08

Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.

Inventor： Kuninaga HATSUGAI ,  Kenji SATO

IPC: F02D13/02 ,  F01L1/356 ,  F01L1/344

Abstract: Provided is a valve timing control apparatus, for an internal combustion engine, capable of sufficiently draining hydraulic oil from between a pulley and a housing body. The pulley includes a through-hole extending axially therethrough at a position radially outward with respect to the outer peripheral surface of the housing body. The through-hole is formed so as to extend over a bottom portion and cylindrical portion of the pulley.