Motors: expansible chamber type – With signal – indicator or inspection means
Patent
1998-03-25
1999-09-21
Lopez, F. Daniel
Motors: expansible chamber type
With signal, indicator or inspection means
91395, 91397, 91398, F15B 1522
Patent
active
059539763
ABSTRACT:
An end dampened working cylinder for a fluid which serves as a fluid power medium for transmission of energy, the working cylinder comprising a main piston; control plungers carrying ring magnets and mounted on both sides of the main piston; springs form-locking the control plungers with the main piston and piston rod; sensors incorporated in a topside end and a bottom end and reacting to a contactless magnetic field, so that on approaching the ring magnet but at least on reaching a sealing rest position of the control plunger at each of the end stops a signal of a respective one of the sensors is generated and serves for controlling the fluid power, the control plungers sliding along the piston rod so as to provide adjustable and guaranteed sealing, outlet channels and a throttled flow-off channel, the control plungers serving as a shut-off component and valve for the outlet channels, so that when the control plungers rest on the topside end and the bottom end a dampening space is formed, from which a dampened fluid outlet through the throttled flow-off channel provides an external means of adjustment in form of a throttle adjustment screw.
REFERENCES:
patent: 2556698 (1951-06-01), Loewe
patent: 3157095 (1964-11-01), Heiser
patent: 4176586 (1979-12-01), Stoll et al.
patent: 4207800 (1980-06-01), Homuth
patent: 4316145 (1982-02-01), Tamm
patent: 4425836 (1984-01-01), Pickrell
patent: 4899643 (1990-02-01), Hvilsted et al.
Buemach Engineering International B.V.
Lopez F. Daniel
Striker Michael J.
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