发明名称 |
METHOD OF AND APPARATUS FOR PRODUCING VALVE ROTORS |
摘要 |
The invention provides a method of and apparatus for imparting a required metering form to the longitudinal outer edges of axially extending grooves of cylindrical rotor members of rotary valves by moving an impressing tool or tools having the required metering form thereon against a said edge or edges of a rotor member or members generally in the direction of a chord extending between a point on said edge and a similar point on an adjacent edge of the nearest adjacent groove so as to displace the material of the edge being worked away from the groove. |
申请公布号 |
DE3162526(D1) |
申请公布日期 |
1984.04.12 |
申请号 |
DE19813162526 |
申请日期 |
1981.09.11 |
申请人 |
ADWEST ENGINEERING LIMITED |
发明人 |
MILLARD, BARRY JOHN |
分类号 |
B21J5/12;B21K1/20;(IPC1-7):21K1/20 |
主分类号 |
B21J5/12 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|