公开(公告)号：US20210164419A1

公开(公告)日：2021-06-03

申请号：US17105977

申请日：2020-11-27

Applicant: YAMABIKO CORPORATION

Inventor： Tamotsu SAITO ,  Tomoyoshi KUDO ,  Yuta ONUMA ,  Ryosuke IMAI

IPC: F02M3/10

Abstract: A limiting cap is provided to restrict rotation of a needle valve and to be easily assembled onto the needle cap. The limiting cap assembled onto the needle valve screwed into an adjustment hole of a fuel adjuster includes a main body to be arranged onto the needle valve. A rising part, which is inserted into a recess of the fuel adjuster, is formed on an outer peripheral surface of the main body. The main body includes a first engagement part on an inner side and a fixing part on an outer side. A first hubbly part formed in an inner peripheral surface of the first engagement part is engageable with a second hubbly part formed in an outer peripheral surface of the needle valve. The needle valve is fixed into the fixing part. The fixing part is formed to have a smaller inner diameter than the first engagement part.

公开(公告)号：US20240301955A1

公开(公告)日：2024-09-12

申请号：US18411108

申请日：2024-01-12

Applicant: YAMABIKO CORPORATION

Inventor： Takahiro YAMAZAKI ,  Yuta ONUMA ,  Tamotsu SAITO ,  Tomoyoshi KUDO ,  Ryosuke IMAI

IPC: F16K1/42 ,  F02M37/00 ,  F16K31/06

CPC classification number: F16K1/42 ,  F02M37/0017 ,  F16K31/0655

Abstract: A movable valve element (24) is comprised of a valve member (22) and a leaf spring (26). A passage forming member (12) is securely fixed to a valve chamber forming member (10) that forms a valve chamber (S). The passage forming member (12) has a fluid passage (14) extending from one end to the other end thereof, with the one end (14a) of the fluid passage (14) constituting an outlet port of the valve chamber (S). The passage forming member (12) has an O-ring (20) surrounding and spaced apart from the outlet port (14a), the O-ring (20) constituting a valve seat. Spring force of the leaf spring (26) brings the valve member (22) into pressure contact with the O-ring (20), to form a closed valve state.

公开(公告)号：US20240026841A1

公开(公告)日：2024-01-25

申请号：US18349302

申请日：2023-07-10

Applicant: YAMABIKO CORPORATION

Inventor： Tamotsu SAITO ,  Tomoyoshi KUDO ,  Yuta ONUMA ,  Ryosuke IMAI

IPC: F02M9/10

CPC classification number: F02M9/10

Abstract: A fuel regulator includes a limit cap which is attached to a needle valve which is inserted into a regulation hole. In an inner peripheral surface of a second hole portion of the regulation hole, a restriction groove and a guide groove which extends from the restriction groove through an outer surface of a main body portion in an axial direction of the second hole portion are formed. A projecting portion which is inserted into the restriction groove is formed on an outer peripheral surface of the limit cap, and the projecting portion is capable of passing through the guide groove, and in the main body portion, a cast hole which extends from the restriction groove through the outer surface of the main body portion in a direction intersecting the axial direction of the second hole portion is formed.

公开(公告)号：US20240026842A1

公开(公告)日：2024-01-25

申请号：US18344012

申请日：2023-06-29

Applicant: YAMABIKO CORPORATION

Inventor： Tamotsu SAITO ,  Tomoyoshi KUDO ,  Yuta ONUMA ,  Ryosuke IMAI

IPC: F02M19/04

CPC classification number: F02M19/04

Abstract: A flow control restrictor includes: a needle valve; and a limit cap which is made of metal and attached to the needle valve. In the needle valve, a first shaft portion which is made of metal and screwed into a regulation hole and a second shaft portion which is made of metal and housed inside the regulation hole are formed. On the second shaft portion, a first projection-and-recess portion is formed, and a pressed portion made of resin is provided on the first shaft portion side relative to the first projection-and-recess portion. The limit cap is fitted onto the second shaft portion. On the limit cap, a projecting portion which is inserted into a restriction groove of the regulation hole and a second projection-and-recess portion which is engaged with the first projection-and-recess portion are formed. The pressed portion is pressed against an inner peripheral surface of the limit cap.