发明名称 |
Plastic servovalve |
摘要 |
Disclosed is a direct drive servovalve having a molded plastic housing. A metal sleeve having a spool valve slidably disposed therein is placed within opposed cavities formed within opposite housing halves. The housing halves are brought together under pressure and an ultrasonic horn is activated. Energy directing beads formed on the housing halves as well as interfering surfaces about the periphery melt under a pressure and ultrasonic energy allowing the two housing halves to move toward each other and mate. Upon deactivation of the ultrasonic horn, the molten plastic material cools and forms a seal about flow ports in the metallic sleeve as well as a fusion bond about the periphery of the housing.
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申请公布号 |
US5551482(A) |
申请公布日期 |
1996.09.03 |
申请号 |
US19950557984 |
申请日期 |
1995.11.13 |
申请人 |
HR TEXTRON INC. |
发明人 |
DIXON, KEITH W.;MARKOWITZ, LEAH |
分类号 |
F15B13/04;F16K27/04;(IPC1-7):F15B13/04;F16K11/07 |
主分类号 |
F15B13/04 |
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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