HYDRAULIC DEVICE WITH CASE DRAIN SYSTEM

Abstract: a hydraulic device comprising: a housing having an inlet for receiving hydraulic fluid and an outlet for outputting the hydraulic fluid, the housing having a case area for holding case fluid; a primary cylinder positioned in the housing along a first reciprocation axis, the primary cylinder in fluid communication with the inlet for receiving the hydraulic fluid on a primary intake stroke and in fluid communication with the outlet for ejecting the hydraulic fluid on a primary exhaust stroke; a primary piston positioned for a first reciprocal motion within the primary cylinder along the first reciprocation axis, the primary piston coupled to an actuator; a drain cylinder positioned in the housing along a second reciprocation axis; a case inlet for receiving the case fluid, the case inlet located in the case area and fluidly coupled to the drain cylinder; a case outlet for outputting the case fluid, the case outlet fluidly coupled to the drain cylinder; a drain piston positioned for a second reciprocal motion within the drain cylinder along the second reciprocation axis, the drain piston exposed to the case fluid in the drain cylinder and coupled to the actuator; wherein a portion of the hydraulic fluid becomes the case fluid when the portion enters the case area and the second reciprocal motion causes the case fluid to be transferred from the case inlet to the case outlet.

Inventor(s): Antonio Cannata

CPC Classification: F15B21/005 (SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR)

Search for rejections for patent application number 20250188964