Abstract:
A hydraulic hflinder (20, 120, 220, 320, 420) is a hydraulic linear actuator (21) integrated into a hybrid fluid line (22, 422). The hybrid fluid line (22, 422) may comprise a rigid continuous length (45) the rigid tubing (25), or a segment (63) of flexible hose (428) attached to a rigid tube (25, 425) with a crimp collar (427, 429). A rigid fluid coupling (23, 423) is mounted at one end (24, 27, 32) of the hybrid fluid line (22, 422), and a rigid rod fitting (26) is mounted at an opposite end (24, 27, 32). A cylinder rod (30, 130, 230) extends through the rigid rod fitting (26) and includes an eye (31, 231) at one end (24, 27, 32) and a piston (33, 78) that divides the hybrid fluid line (22, 422) into a extend hydraulic volume (40) and a retract volume (41, 141, 241). The cylinder rod (30, 130, 230) is movable along a straight line with respect to the rigid rod fitting (26) between a retracted position and an extended position. A majority of the active length (45) of cylinder rod (30, 130, 230) is positioned inside and outside of the rigid tube (25, 425) at the retracted and extended positions, respectively.
Abstract:
A hydraulic hoselinder (20) is a hydraulic linear actuator (21) integrated into a flexible hose (22). A continuous length (45) of flexible hose (22) has a rigid fluid coupling (23) mounted at one end (27) and a rigid rod fitting (26) mounted at an opposite end (32). A cylinder rod (30) extends through the rigid rod fitting (26) and includes an eye (31) at one end (27) and a piston (33) that divides the flexible hose (22) into a extend hydraulic volume (40) and a retract volume (41). The cylinder rod (30) is movable along a straight line with respect to the rigid rod fitting (26) between a retracted position and an extended position. A majority of the active length (45) of cylinder rod (30) is positioned inside and outside of the flexible hose (22) at the retracted and extended positions, respectively.