EP 0052709 A1 19820602 - Distributing valve.
Title (en)
Distributing valve.
Title (de)
Wegeventil.
Title (fr)
Distributeur.
Publication
Application
Priority
DE 3044420 A 19801126
Abstract (en)
1. Directional valve (11) with a longitudinal slide (13) which is guided in a longitudinal bore (12) of a housing (10) and is actuated by hand via a control lever and which, in each of its two working positions, makes a connection between a pressure-medium source (21) and at least one double-acting consumer and between the latter and a return (25, 26), the load pressure acting, via a piston (37) subjected to the consumer pressure, on the longitudinal slide (13), in such a way that a counterforce is exerted on the latter counter to its direction of actuation, characterised in that there is in the longitudinal slide (13) a blind bore (36), into which the piston (37), designed as a differential piston and fixed to a housing (10), penetrates and there divides from one another two pressure spaces (39, 45) of different cross-sections, in that, in one working position of the direction valve, the pressure space (45) of smaller cross-section is connected to the one consumer side (27) and the pressure space (39) of larger cross-section is connected to the return (25), and in that, in the other working position, both pressure spaces (45, 39) are connected to the other consumer side (28).
Abstract (de)
Der Steuerschieber (13) des Wegeventils (11) wird über einen Steuerhebel von Hand betätigt. Damit der das Ventil Bedienende eine Information über die Größe des Lastdrucks am Verbraucher hat, wird der Lastdruck bei Betätigen des Steuerschiebers über Gehäusekanäle (54 bzw. 55) in im Steuerschieber ausgebildete Druckkammern (39, 45) geleitet, die durch einen sich am Gehäuse abstützenden Differentialkolben (37) getrennt sind. Im Zusammenwirken mit diesem Kolben wird auf den Steuerschieber eine dem Lastdruck proportionale aber der Betätigungskraft entgegengesetzte Kraft ausgeübt, die dem Bedienenden den Lastdruck signalisiert.
IPC 1-7
IPC 8 full level
F15B 13/14 (2006.01)
CPC (source: EP)
F15B 13/14 (2013.01)
Citation (search report)
- [X] DE 1696047 A1 19711118 - WALTER MASCH J
- [A] US 3152610 A 19641013 - MCAFEE JR KYLE E
- [A] GB 796496 A 19580611 - BRITISH MESSIER LTD
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0052709 A1 19820602; EP 0052709 B1 19841227; DE 3044420 A1 19820616; DE 3167960 D1 19850207
DOCDB simple family (application)
EP 81107400 A 19810918; DE 3044420 A 19801126; DE 3167960 T 19810918