HYDRAULIC LINEAR ACTUATOR INTEGRATED INTO A FLEXIBLE HOSE, AND HYDRAULIC CIRCUIT USING SAME

摘要

A hydraulic hoselinder is a hydraulic linear actuator integrated into a flexible hose. A continuous length of flexible hose has a rigid fluid coupling mounted at one end and a rigid rod fitting mounted at an opposite end. A cylinder rod extends through the rigid rod fitting and includes an eye at one end and a piston that divides the flexible hose into a extend hydraulic volume and a retract volume. The cylinder rod is movable along a straight line with respect to the rigid rod fitting between a refracted position and an extended position. A majority of the active length of cylinder rod is positioned inside and outside of the flexible hose at the retracted and extended positions, respectively.

主权项

1. A hydraulic hoselinder comprising:
a hydraulic linear actuator integrated into a flexible hose; the flexible hose having rigid fluid coupling mounted to one end with a first crimp collar and a rigid rod fitting mounted to an opposite end with a second crimp collar; a cylinder rod extending through the rigid rod fitting and including a eye at one end and a piston that divides the flexible hose into an extend hydraulic volume and a retract volume, and the cylinder rod being movable along a straight line with respect to the rigid rod fitting between a retracted position and an extended position; the rigid fluid coupling being located a distance from the rigid rod fitting along a central axis of the flexible hose, and the distance is greater than a length of the cylinder rod; and a majority of an active length of the cylinder rod being positioned inside the flexible hose at the retracted position, and a majority of the active length of the cylinder rod being outside the flexible hose at the extended position.