Device for pressure-regulated variable displacement motors with

Details Device for pressure-regulated variable displacement motors with Device for pressure-regulated variable displacement motors with

1990-10-19

1992-06-16

Look, Edward K.

Power plants

Pressure fluid source and motor

Condition responsive control of pump or motor displacement

60490, F16D 3102

Patent

active

051216035

ABSTRACT:
A hydrostatic system includes a variable displacement hydraulic motor whose absorption volume is adjusted by a pressure regulator, depending on the rpms generated by the power source driving the system. The apparatus enables the variable displacement motor to fully utilize the drive power avaiable from the power source over a range of operating speeds.

REFERENCES:
patent: 3054263 (1962-09-01), Budzich
patent: 3797244 (1974-03-01), Waters
patent: 3981374 (1976-09-01), Johns
patent: 3986357 (1976-10-01), Hoffman
patent: 4596118 (1986-06-01), Heiser
patent: 4712377 (1987-12-01), Yoshida et al.
patent: 4745746 (1988-05-01), Geringer
patent: 4932208 (1990-06-01), Koyama et al.
Sauer-Sundstrand Service Handbook entitled "Hydrostatic Power System", Series 20+50, 1987, pp. 1-16.
Sauer-Sundstrand Service Handbook entitled "Sauer Automatic Transmission FBA: Standard Design for Axial Piston Variable Pumps".
Sauer-Sundstrand technical information publication entitled "Axial Piston Motors" Series 50, May 1988, pp. 1-16.
"Oilhydraulic Applications" (1971) by H. Ebertsauser, pp. 146-151, was cited by the German Patent Office as technical background in connection with Applicant's corresponding German Application.
Author: Prof. Dipl.-Ing. H. Ebertshauser, Title: Anwendungen der Olhyraulik Teil I Date: Dec. 1971 (assumed) Pertinent Pages "Foreword" and 146-151.

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