Patent Number: 6,305,163

Title: Method for adjusting supply pressure

Abstract: The invention relates to a method for adjusting supply pressure (p.sub.s)in a hydraulic system. The method comprises a feeder pump (23) forproducing the supply pressure (p.sub.s), at least two hydraulic actuators(8a, 8b, 8c), measuring means for measuring the pressure levels of theactuators (8a, 8b, 8c), and a pressurized medium flow channel system. Inthe method, it is examined, in which actuators (8a, 8b, 8c) the loadpressure is caused by moving a load (positive work). From the pressurelevels of the actuators (8a, 8b, 8c) performing load-moving work, thehighest is selected, and the supply pressure (p.sub.s) is adjusted on thebasis of the selected pressure level.

Inventors: Paakkunainen; Marko (Tampere, FI)


International Classification:

Expiration Date: 10/23/2013