公开(公告)号：US20170268390A1

公开(公告)日：2017-09-21

申请号：US15458445

申请日：2017-03-14

Applicant: HONDA MOTOR CO., LTD.

Inventor： Yuta Daimon ,  Fumio Sato

IPC: F01L1/344 ,  F01L1/18 ,  F01L1/047

CPC classification number: F01L1/34413 ,  F01L1/047 ,  F01L1/18 ,  F01L13/0057 ,  F01L2001/0473 ,  F01L2103/01 ,  F01L2820/041

Abstract: A composite profile evaluating method includes an adjusting step and a composite profile detecting step. In the adjusting step, a relative position between a fixed cam and a movable cam is adjusted. In the composite profile detecting step, at least either one of a first contact element, which is displaced along a diametrical direction of the fixed cam upon contacting a cam surface of the fixed cam, and a second contact element, which is displaced integrally with the first contact element and along a diametrical direction of the movable cam upon contacting a cam surface of the movable cam, is brought into contact with the cam surface of the fixed cam or the movable cam. In such a state, the composite profile is obtained by rotating the fixed cam and the movable cam, and detecting the amounts of displacement of the first and second contact elements.

公开(公告)号：US10047639B2

公开(公告)日：2018-08-14

申请号：US15458455

申请日：2017-03-14

Applicant: HONDA MOTOR CO., LTD.

Inventor： Fumio Sato ,  Hiroshi Takeda ,  Takuro Yoshimura ,  Yuta Daimon

IPC: F01L1/04 ,  F01L1/047

Abstract: A camshaft is equipped with an inner shaft which is arranged rotatably inside a cylindrical outer shaft. Further, in the inner shaft, a plurality of pin holes extend along diametrical directions thereof, and are disposed at intervals along the axial direction of the inner shaft. The directions in which adjacent pin holes extend are arranged at angles obtained by dividing 360 degrees by the number of cylinders. The inner shaft and the inner cams are fixed in a state in which large diameter portions of pins, each of which is provided with a small diameter portion and a large diameter portion, are press-fitted through insertion holes of the inner cams and notches of the outer shaft, and are press-fitted into the pin holes.

公开(公告)号：US10215064B2

公开(公告)日：2019-02-26

申请号：US15458445

申请日：2017-03-14

Applicant: HONDA MOTOR CO., LTD.

Inventor： Yuta Daimon ,  Fumio Sato

IPC: F01L1/34 ,  F01L1/344 ,  F01L1/047 ,  F01L1/18

Abstract: A composite profile evaluating method includes an adjusting step and a composite profile detecting step. In the adjusting step, a relative position between a fixed cam and a movable cam is adjusted. In the composite profile detecting step, at least either one of a first contact element, which is displaced along a diametrical direction of the fixed cam upon contacting a cam surface of the fixed cam, and a second contact element, which is displaced integrally with the first contact element and along a diametrical direction of the movable cam upon contacting a cam surface of the movable cam, is brought into contact with the cam surface of the fixed cam or the movable cam. In such a state, the composite profile is obtained by rotating the fixed cam and the movable cam, and detecting the amounts of displacement of the first and second contact elements.

公开(公告)号：US20170268385A1

公开(公告)日：2017-09-21

申请号：US15458455

申请日：2017-03-14

Applicant: HONDA MOTOR CO., LTD.

Inventor： Fumio Sato ,  Hiroshi Takeda ,  Takuro Yoshimura ,  Yuta Daimon

IPC: F01L1/047 ,  F01L1/04

CPC classification number: F01L1/047 ,  F01L1/042 ,  F01L1/053 ,  F01L1/34 ,  F01L2001/0471 ,  F01L2001/0473 ,  F01L2001/0476 ,  F01L2103/00

Abstract: A camshaft is equipped with an inner shaft which is arranged rotatably inside a cylindrical outer shaft. Further, in the inner shaft, a plurality of pin holes extend along diametrical directions thereof, and are disposed at intervals along the axial direction of the inner shaft. The directions in which adjacent pin holes extend are arranged at angles obtained by dividing 360 degrees by the number of cylinders. The inner shaft and the inner cams are fixed in a state in which large diameter portions of pins, each of which is provided with a small diameter portion and a large diameter portion, are press-fitted through insertion holes of the inner cams and notches of the outer shaft, and are press-fitted into the pin holes.