Directional control valve with pressure compensating valve

Abstract

Abstract PURPOSE: To make the structure of a pressure fluid circuit compact, by providing a flow dividing type pressure compensating valve between a pressure source and the first and the second fluid circuits, and also providing a by-pass type pressure compensating valve between the second fluid circuit and a tank. CONSTITUTION: The flow dividing type pressure compensating valve 5 is provided between a pressure source 2 and the first and the second fluid circuits 4a, 4b, and the by-pass type pressure compensating valve 6 is provided between the second fluid circuit 4b and a tank 8. With such an arrangment, the difference of fluid pressure in first supply passage 7a, 7b for the first and the second fluid circuits 4a, 4b and that in second supply passages 13aW13c for the directional control valves can be kept constant by the fuction of said flow dividing and by-pass type pressure compensating valves 5, 6. Therefore, the structure of a pressure fluid circuit can be made compact since it is not necessary to use a plurality of pressure compensating valves in constituting a pressure fluid circuit in which a plurality of directional control valves are used. COPYRIGHT: (C)1981,JPO&Japio

Inventors

• 👤 Megumi Miyake
• 👤 Kenichi Shimoura

Bibliographic Details