RELAY VALVE, BRAKE SYSTEM AND VEHICLE - MITSUBISHI HEAVY IND LTD

Title:

RELAY VALVE, BRAKE SYSTEM AND VEHICLE

Document Type and Number:

Japanese Patent JP2017001580

Kind Code:

A

Abstract:

PROBLEM TO BE SOLVED: To provide a relay valve capable of reducing a pressure differential between notches of compressed air outputted to a foundation brake gear, and to provide a brake system including the relay valve, and a vehicle.SOLUTION: In a multistage relay valve 23 having a plurality of film plates 51 provided between a piston 31 and a casing 41, in the state where a pressure in an air chamber AS is balanced with a pressure in a feedback chamber FS, and the piston 31 is arranged on an overlapping position for stoping communication between an air tank 12 and a foundation brake gear 15, the inside end on the piston 31 side of the film plates 51 and the outside end on the casing 41 side are arranged on each different position in the direction of an axis line O.SELECTED DRAWING: Figure 3

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