摘要:
A spring brake actuator has a sealed spring chamber (101) with a hot set large force compression spring (72). An alternative embodiment has the hot set spring (72) guided by the actuator rod (60).
摘要:
A brake system assembly for a motor vehicle is provided comprising an air compressor operably engaged to the motor vehicle engine; a compressed air control device; at least one supply circuit for retaining compressed air in fluid communication with the compressed air control device; a service brake operably engaged by the application of compressed air; a parking brake operably disengaged by the application of compressed air; a dash control assembly having a parking brake control; a plurality of functional conduits for fluid communication; and a plurality of valves for manipulating compressed air including a foot brake valve for selectively engaging the brake system.
摘要:
An air suspension control system, primarily for use with a vehicle, which increases ride stability and minimizes air losses to the air suspension control system during normal operation of the vehicle by utilization of an air restriction valve to restrict the air introduced into or exhausted from an air spring in response to a received control signal.
摘要:
A service brake actuator (10) having a housing base (20) having a center portion (38) and a housing cover (22) having a center portion (44) is provided. The center portion (38) of the housing base (20) and the center portion (44) of the housing cover (22) telescopingly fit together in an assembled position and define an annular space therebetween. A diaphragm (30) having a thickness greater than the thickness of the annular space between the center portion (38) of the housing base (20) and the center portion (44) of the housing cover (22) is held in the annular space by radial forces generated by compression of the diaphragm (30) in the annular space. It should be understood that the magnitude of the radial forces holding the diaphragm (30) in the annular space is variable depending on the thickness of the annular space.
摘要:
An axial piston compressor produces air supplied to an air system of a vehicle, typically a heavy duty truck through a plurality of pistons (24) held within a stationary block (22), and the movement of the pistons (24) is predicated through the control of a pivotal swash plate (34). The pistons (24) are idle in a neutral position of the swash plate (34), wherein a pressure above the pistons (24) in the cylinder block counterbalances a thrust generated by an actuator (41) upon the swash plate (34) positioned in a plane extending perpendicular to a drive shaft (12). The swash plate (34) oscillates in response to a pressure drop above the pistons (24) causing the actuator (41) to expand toward the swash plate (34) and exert a thrust exceeding the lowered pressure above the pistons (24) and enabling the swash plate (34) to provide the pistons (24) with reciprocal motion.