Directional control valve
AssigneeHerion-Werke KG
InventorHelmut Ott
Life of this patent
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Abstract
A directional control valve for compressed air with an inlet port, at least one consumer port and at least one vent port includes a housing accommodating a control piston for controlling the connection between the inlet port, the consumer port and the vent port, and a one-way restrictor arrangement. The one-way restrictor arrangement is fitted directly within the housing between the vent port and the consumer port, transversely to the longitudinal axis of the control piston. In this manner, a flow of compressed air to the consumer is prevented upon occurrence of a dynamic pressure.
Claims6
A directional control valve for regulating the flow of a fluid and adaptable for connection onto an adaptor plate, comprising:
- a housing accommodating a control piston which defines a longitudinal axis and controls a connection between an inlet port, at least one consumer port and at least one vent port;
- and
- a one-way restrictor arranged directly within said housing between said vent port and said consumer port, transversely to said longitudinal axis of said control piston, said one-way restrictor including a throttle element and a non-return element, which are made in form of a single molded piece.
Dependencies are inferred from the claim text.