Patent Number: 6,167,904

Title: Hydraulic valve

Abstract: A hydraulic valve with a housing, having an inlet connection and an outlet connection with a hollow space between them, in which a valve slide is arranged to reciprocate, and, depending on its position, sets a flow cross section between the inlet connection and the outlet connection more or less free. In such a valve it is intended to improve the operational behaviour, that is, on the one hand to prevent a jamming and on the other hand to keep the leakage small. For this purpose, the valve slide is surrounded by a bush, which is arranged to be radially expandable in the hollow space.

Inventors: Nielsen; Helge B. (Sydals, DK), Sand; Hans Christian (S.o slashed.nderborg, DK)

Assignee: Danfoss A/S

International Classification: F16K 3/26 (20060101); F16K 3/00 (20060101); G05D 16/04 (20060101); G05D 007/01 ()

Expiration Date: 01/02/2018