LINEAR ACTUATOR WITH A PISTON BYPASS IN A PREDETERMINED PISTON POSITION

A position dependent valve device (10) for a control cylinder (12) includes at least one channel (24) formed in one of a wall of a cylinder housing (14) of the control cylinder (12) and a wall of a internal piston (20) disposed in the cylinder housing (14) and a seal (26) including a flexible member...

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Bibliographische Detailangaben
Hauptverfasser:	JOHNSEN STEFFEN, IVERSON BJ RN, H LL KENT
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS HEATING HYDRAULICS OR PNEUMATICS IN GENERAL LIGHTING MECHANICAL ENGINEERING SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A position dependent valve device (10) for a control cylinder (12) includes at least one channel (24) formed in one of a wall of a cylinder housing (14) of the control cylinder (12) and a wall of a internal piston (20) disposed in the cylinder housing (14) and a seal (26) including a flexible member adapted to be disposed in a groove in the other one of the wall of the cylinder housing (14) and the wall of the piston (20), the seal (26) cooperating with the at least one channel (24) when the piston (20) is in a defined position to allow airflow past the piston (20) and cooperating with one ofthe cylinder housing (14) and the piston (20) when the piston (20) is in a position outside the defined position to prevent airflow past the piston (20). 用于控制汽缸(12)的位置依赖的阀装置(10)包括在控制汽缸(12)的汽缸壳体(14)的壁和设置在汽缸壳体(14)中的内部活塞(20)的壁中的个中形成的至少个通道(24)，和包括柔性构件的密封件(26)，该密封件适于设置在汽缸壳体(14)的壁和活塞(20)的壁中的另个中的凹槽中，当活塞(20)处于限定位置中时，密封件(26)与至少个通道(24)协配，以允许空气流经过活塞(20)，而当活塞(20)处于限定位置外的位置中时，密封件与汽缸壳体(14)和活塞(20)中的个协配，以防止空气流经过活塞(20)。