Power plants – Pressure fluid source and motor – Having a mechanical clutch or brake device in the power train
Patent
1994-11-16
1996-03-12
Lopez, F. Daniel
Power plants
Pressure fluid source and motor
Having a mechanical clutch or brake device in the power train
91 44, 91 45, F16P 3102, F15B 1526
Patent
active
054976227
ABSTRACT:
Disclosed is a a time delay valve, which has a reduced number of components so that the manufacture thereof is easy and the number of manufacturing processes is reduced, and by which the delay time thereof is easily reset and changed. The time delay valve is disposed incorporated in a casted-housing of the hydraulic motor to be prevented from being damaged. The time delay valve has a spool movably disposed therein in such a manner to be elastically supported by a spring and be moved by a signal pressure applied to a signal pressure port, and an orifice spool movably disposed therein with being elastically supported by another spring. The constant pressure port and the pressure receiving chamber is interconnected with each other through an oil flowing path in the course of an alternating stroke of the spool. The orifice spool is moved by the elastic force of the spring and the pressure difference between a spring chamber of the orifice spool and an oil flowing path.
REFERENCES:
patent: 4557109 (1985-12-01), Nagahara et al.
patent: 4565117 (1986-01-01), Forster
patent: 4930312 (1990-06-01), Metcalf
patent: 5220790 (1993-06-01), Allart et al.
patent: 5280804 (1994-01-01), Takashima et al.
Lopez F. Daniel
Nguyen Hoang
Samsung Heavy Industry Co. Ltd.
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