Control arrangement for a transmission brake with a quick exhaust valve

A transmission brake having a control assembly for actuating a transmission brake, the assembly comprising:

• a transmission brake cylinder,
• at least one control valve for controlling at least one of pressurizing and exhausting of the transmission brake cylinder,
• at least one pressure line via which the at least one control valve is connected to the transmission brake cylinder to supply and discharge a pressure medium to and from a pressure chamber, and
• the assembly having a quick-exhaust valve being arranged in the pressure line between the transmission brake cylinder and the at least one control valve.

An assembly for actuating a transmission brake having a transmission brake cylinder, the assembly comprising:

• at least one control valve being connected, via a pressure line, to the transmission brake cylinder for controlling a flow of pressure medium to and from the transmission brake cylinder for engaging and disengaging the transmission brake;
• a quick-exhaust valve being arranged in the pressure line, between the transmission brake cylinder and the at least one control valve, and the quick-exhaust valve having valve orifice located on a valve side of the quick-exhaust valve and which is connected, via the pressure line, to the at least one control valve, and a cylinder orifice located on a brake cylinder side of the quick-exhaust valve and which is connected, via the pressure line, to the transmission brake cylinder;
• the quick-exhaust valve having a housing part that forms a passage which extends along a displacement axis between the valve side and the brake cylinder side thereof, the quick-exhaust valve having a closure element located within the passage and being entirely axially movable along the displacement axis in a first direction within the quick-exhaust valve to a pressurizing position and in an opposite second direction to a quick-exhaust position as a function of a pressure on the valve side of the quick-exhaust valve and a pressure on the brake cylinder side of the quick-exhaust valve;
• and
• the closure element having a radially extending base body and an axially extending annular control element, a first axial end of the control element being connected to periphery of the base body and radially spaced from the housing part by a gap, the control element extending axially at an angle to the displacement axis such that an opposite second axial end of the control element contacts the housing part, the control element being movable between a radial opening position and a radial closing position as a function of the pressure on the valve side and the brake cylinder side, and the base body completely closes, in the pressurizing position of the closure element, the exhaust orifice of the quick-exhaust valve, and the base body, in the quick-exhaust position of the closure element, at least partially closes the valve orifice on the valve side of the quick-exhaust valve.