Apparatus for cleaning and pressure testing hydraulic control systems
OwnerLouis P. Vickio, Jr.inventor
Life of this patent
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Abstract
Method and multipurpose apparatus for internally cleaning a hydraulic control system are disclosed. The method is carried out by establishing a turbulent flow of cleaning fluid through the hydraulic control system and maintaining the turbulent flow until the hydraulic control system has been cleaned without diverting a portion of cleaning fluid through a bypass valve, by use of a variable speed pump coupled to a fluid accumulator. The apparatus comprises a filtration system for cleaning up recovered fluid, a primary pump, an accumulator, a first manifold for fluid injection, a second manifold for fluid recovery, and a return conduit from the second manifold to the filter.
Claims16
A multi-purpose injector unit for injecting liquid into a hydraulic control system, said injector unit comprising
- a. a filtration system for receiving a contaminated liquid and forming a filtered liquid,
- b. a primary pump in flow communication with the filtration system to receive filtered liquid from the filtration system,
- c. an accumulator in flow communication with the pump to receive filtered liquid from the pump and storing said filtered liquid at an elevated pressure,
- d. a first manifold in flow communication with the accumulator to receive filtered liquid from the accumulator and distributing filtered liquid into the hydraulic control system,
- e. a second manifold positioned to receive contaminated liquid from the hydraulic control system, and
- f. means forming a flow path between said second manifold and said filtration system to provide for the filtering of said contaminated liquid in said filtration system.
A method for internally cleaning a hydraulic control system comprising
- establishing a turbulent flow of cleaning fluid through the hydraulic control system, and
- maintaining said turbulent flow until the hydraulic control system has been cleaned without diverting a portion of cleaning fluid through a bypass valve, by use of a variable speed pump coupled to a fluid accumulator.
Dependencies are inferred from the claim text.