Control valve assembly

Abstract

Abstract A control valve assembly which can be used as an antiskid valve in the brake system of an automotive vehicle and wherein the valve body defines two chambers one of which communicates with an outlet and the other of which can communicate with an inlet for pressurized fluid. The valve body is further provided with a port for connection to a consumer and with channels which connect the port with the other chamber. A normally open first open-and-shut valve is mounted in the one chamber and a normally closed second open-and-shut valve is mounted in the other chamber. The armature of an electromagnet is movable axially in the valve body to close the first valve and to thereupon open the second valve by way of a motion-transmitting device having several elongated sections which are disposed end-to-end between the seat of the first valve and the spherical valve member of the second valve. One section has a passage which connects the port with the outlet when the first valve is open and which also connects the channels with the outlet so that the other chamber is then relieved. When the second valve is open, pressurized fluid can flow from the inlet to the consumer by way of the channels while the first valve prevents escape of fluid from the channels into the outlet. Since the sections of the motion-transmitting device merely abut against each other, they need not be machined and/or installed with a high degree of precision. The spring of the first valve biases the seat of this valve against one end of the nearest section, and the spring of the second valve biases the valve member against the adjacent end of another section.

Inventors

• 👤 Loewis Alexander Von

Bibliographic Details