发明名称 |
Screw having a V-shaped groove profile for cooperating with a pinion in a compression or expansion machine |
摘要 |
A tool having only an end cutting-edge carries out a first movement of penetration into a screw blank so as to produce a groove having flanks substantially parallel to the pinion axis. The tool-holder is angularly displaced with respect to the spindle which carries the screw blank. A second movement of tool penetration takes place while the relative displacement is progressively reduced in order to obtain an inclined flank which produces a V-shaped profile. The screw is intended to form part of a compression and expansion machine and to cooperate with at least one pinion having V-form teeth.
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申请公布号 |
US4342548(A) |
申请公布日期 |
1982.08.03 |
申请号 |
US19790100399 |
申请日期 |
1979.12.05 |
申请人 |
UNISCREW LIMITED |
发明人 |
ZIMMERN, BERNARD |
分类号 |
F04C18/52;B23F15/08;B23P15/14;F01C21/08;F04C18/54;(IPC1-7):F01C1/12;F04C18/12 |
主分类号 |
F04C18/52 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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