Invention Grant
- Patent Title: Motor operated valve
- Patent Title (中): 电动阀
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Application No.: US740901Application Date: 1996-11-04
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Publication No.: US5851003APublication Date: 1998-12-22
- Inventor: Tetsuya Aoki , Tadashi Hasegawa , Tomoari Ohuchi
- Applicant: Tetsuya Aoki , Tadashi Hasegawa , Tomoari Ohuchi
- Applicant Address: JPX Tokyo
- Assignee: Fujikoki Corporation
- Current Assignee: Fujikoki Corporation
- Current Assignee Address: JPX Tokyo
- Priority: JPX8-139013 19960531
- Main IPC: F16K31/04
- IPC: F16K31/04 ; F16K31/524 ; F25B41/06 ; F16K51/00

Abstract:
Objective To avoid undesirable contact between the moving side stopper and the fixed side stopper, to maximize the contact width at the time of hitting, to decrease damages, wearing, etc. to those stoppers, and to improve reliability of the moving side stopper and the fixed side stopper in terms of rigidity and durability. Solution To provide a motor operated valve comprising a valve body 20, a screw fed valve stem 30 and a shaft 35, a motor 10 which rotationally drive the aforementioned shaft 35, a sleeve 40 having a convexed moving side stopper 41 which is rotated with the aforementioned shaft 35 as a monolithic structure, and a fixed bearing washer having a convexed fixed side stopper 55 to which the aforementioned moving side stopper 41 hits, and where a clearance slope 41a to avoid hitting the fixed side stopper 55 is provided on the rear part, looking in the rotational direction, of the aforementioned moving side stopper 41.
Public/Granted literature
- US5305208A Database retrieval system for effectively displaying differences between elements of plural drawings Public/Granted day:1994-04-19
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