Hydraulic directional converter

US6834526B2 · kind B2 · utility

Inventor

• Michael Marx · Mountain View, US

Key dates

• Filing date: Jun 5, 2002
• Grant date: Dec 28, 2004
• Expiry date: Jun 22, 2022

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S72/705
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A hydraulic system comprises a pump having a fluid feed and a fluid release. Hydraulic actuator has an advance port and a retract port. A directional converter is fluidically coupled between the pump and the hydraulic actuator. The converter has a housing having a plurality of fluid passages therethrough. The plurality of fluid passages terminates in a pump outlet port, a pump inlet port, a first actuator port, and a second actuator port. The pump outlet port is coupled to the fluid release of the pump. The pump inlet port is fluidically coupled to the fluid feed of the pump. The first actuator port and second actuator port are respectively coupled to the advance port and the retract port of the actuator. A plurality of valves is disposed within the fluid passages. The plurality of valves has a first position and a second position. In the first position, a fluid flow direction at the first actuator port is into said housing from the actuator and a second fluid direction and a second actuator port is out of the housing. When the switches are in a second position the fluid flow direction is out of the housing at the second actuator port.