Double circuit brake arrangement for trucks for drawing trailers braked by pressurized air

Abstract

Abstract A TWO-CIRCUIT BRAKE ARRANGEMENT FOR TRUCKS FOR DRAWING OF TRAILERS BRAKE BY PRESSURIZED AIR, WHICH COMPRISES TWO BRAKE CIRCUITS, AND A COMMON PRESSURE SAFETY RELAY. THE TWO BRAKE CIRCUITS ARE CONNECTED WITH THE COMMON PRESSURE SAFETY RELAY. A COMMON HOUSING IS PROVIDED AND TWO OPPOSITELY OPERATING STEP PISTON ARRANGEMENTS ARE DISPOSED IN THE COMMON HOUSING. THE STEP PISTON ARRANGEMENTS HAVE CYLINDERS. A CENTRAL VALVE CHAMBER INCLUDES A CONNECTION FOR A BRAKE CONDUIT FOR A TRAILER. THE CYLINDERS EXTEND INTO THE CENTRAL VALVE CHAMBER. THE STEP PISTONS ARE HOLLOW. ONE OF THE STEP PISTONS HAS AN INLET SEAT AND THE OTHER OF THE STEP PISTONS HAS AN OUTLET SEAT WITHIN THE RANGE OF THE VALVE CHAMBER FOR A SPRING BIASED DOUBLE VALVE BODY. THE DOUBLE VALVE BODY CLOSES THE INLET SEAT. THE STEP PISTON CARRYING THE INLET SEAT DEFINES INNER SPACES, AND THE INNER SPACE OF THE STEP PISTON CARRIES THE INLET SEAT IN COMMUNICATION WITH A STORAGE AIR CONNECTION. THE INNER SPACE OF THE OTHER STEP PISTON IS IN OPEN COMMUNICATION WITH AN AIRING CONNECTION. THE CYLINDERS RECEIVE THE GREAT PART OF THE STEP PISTON CARRYING EACH A BRAKE CIRCUIT CONNECTION ON THE OUTSIDE OF THE PISTONS AND ARE IN COMMUNICATION ON THE OTHER SIDE WITH THE VALVE CHAMBER BY MEANS OF A PASSAGE. ANOTHER SPRING-BIASED VALVE SEPARATES THE PART OF THE VALVE CHAMBER RECEIVING THE DOUBLE VALVE BODY AND THE BRAKE CONDUIT CONNECTION FROM THE PART OF THE VALVE CHAMBER TERMINATES THE PASSAGES LEADING TO THE CYLINDERS. D R A W I N G

Inventors

• 👤 H Gruner
• 👤 H Nicolay

Bibliographic Details