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Pump Family Utilizes An Integral Electro-hydraulic Servo Piston Assembly

Mon, 12/17/2007 - 5:45am

Pump Family Uses An Electro-hyndraulic Servo Piston AssemblySauer-Danfoss announced the release of its H1 45/53cc and 78cc single pumps, joining the 147/165cc single pump and the 45/53cc integral tandem pump for a variety of propel and non-propel applications. The H1 family of closed-circuit variable displacement axial piston pumps is compact and features high power density. All the units use an integral electro-hydraulic servo piston assembly that controls rate (speed) and direction of hydraulic flow. They can be used with the company's other pumps and motors in the hydraulic system. Among their operating characteristics, the pumps are said to reduce rotating group, control and charge pump losses, which saves fuel consumption, frees power for other vehicle functions and enhances operating performance and productivity. Options designed to improve operator and vehicle safety include: a tandem Control Cut Off (CCO) circuit that will safely disable both pump controls in the absence of the proper signal to the override solenoid; an Integral Speed Limitation (ISL) circuit that improves vehicle braking while preventing engine over-speed; and integral pressure filtration with a filter bypass sensor and switch, prompting necessary filter service and maintenance. H1 pumps are compact in length and have at least one “clean side,” facilitating machine design and installation. The high corner HP/package size ratio translates to high power density with space savings.

Sauer-Danfoss
515-239-6000, www.sauer-danfoss.com

 

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