EP 0826110 B1 19990127 - SLIDING HYDRAULIC OUTPUT AND MOMENT REGULATION DEVICE
Title (en)
SLIDING HYDRAULIC OUTPUT AND MOMENT REGULATION DEVICE
Title (de)
VERSCHIEBBARE HYDRAULISCHE LEISTUNGS- BZW. MOMENTENREGELEINRICHTUNG
Title (fr)
DISPOSITIF HYDRAULIQUE COULISSANT DE REGULATION DE PUISSANCE ET DE COUPLE
Publication
Application
Priority
- DE 19517974 A 19950516
- EP 9601970 W 19960509
Abstract (en)
[origin: DE19517974A1] The invention concerns an output and moment regulation device for an adjustable hydraulic pump (1) with a hydraulic servo setter for the continuous adjustment of the delivery rate. Adjustment of the delivery rate is dependent on the delivery pressure of the hydraulic pump (1) in a delivery pressure line (10) and an actuating pressure in a control line (12), and the setter is provided with a spring (4) which forces a pump regulating member (3) in the direction of maximum delivery rate and with at least one piston (6) which acts on the pump regulating member (3) in the direction of delivery rate reduction. The piston face can be subjected via a hydraulically operated control valve (8) to the feed pressure, or is connected to a discharge (19), the control valve (8) is actuated by actuating pressure in the control line (12), and a moment valve (17) is provided whose closure force is set by a metering spring arrangement (18) connected to the pump regulating member (3) and pre-stressed in accordance with the delivery pressure setting; and the moment valve (17) connects the control line (12) to the discharge (19) in accordance with the control pressure in the control line (12) and the pre-stress in the metering spring arrangement (18); and the control line (12) which branches off from the operating pressure line (15) of the pump is provided with an adjustable choke device (13) for adjusting the control pressure acting on the control valve (8) and moment valve (17), specifically, on the closure members thereof.
IPC 1-7
IPC 8 full level
F04B 49/00 (2006.01); F04B 49/08 (2006.01)
CPC (source: EP US)
F04B 49/08 (2013.01 - EP US); F04B 2201/1204 (2013.01 - EP US); F04B 2205/08 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT SE
DOCDB simple family (publication)
DE 19517974 A1 19961121; DE 59601232 D1 19990311; EP 0826110 A1 19980304; EP 0826110 B1 19990127; JP 4422212 B2 20100224; JP H11505308 A 19990518; US 5993168 A 19991130; WO 9636813 A1 19961121
DOCDB simple family (application)
DE 19517974 A 19950516; DE 59601232 T 19960509; EP 9601970 W 19960509; EP 96919743 A 19960509; JP 53452796 A 19960509; US 89407897 A 19970812