초록 ▼

A condensate drainage system for pneumatic tanks is disclosed. Large vehicles typically use compressed air for operating various vehicle functions such as its brakes. In conjunction with the use of compressed air there is provided a pneumatic system including a compressor and pneumatic storage tanks

A condensate drainage system for pneumatic tanks is disclosed. Large vehicles typically use compressed air for operating various vehicle functions such as its brakes. In conjunction with the use of compressed air there is provided a pneumatic system including a compressor and pneumatic storage tanks. Because of the properties of compressed air, it is necessary to drain condensates and contaminants from the pneumatic storage tanks in order to prevent the condensates and contaminants from migrating throughout the air system, and interfering with the operation of, the brakes. Accordingly, electrically controlled drain valves are connected to the pneumatic tanks for purging condensate and contaminants. A logic controller which receives inputs from sensors and determines an engine status controls the operation of the drain valves so as to optimally purge condensates and contaminants. The controller includes a CPU, programmable memory, and a timer. A push button control is also provided to override timing functions within the controller.

대표청구항 ▼

[ I claim:] [1.] A condensate draining system for a pneumatic system of an engine powered vehicle, the vehicle having pneumatically operated components responsive to the pneumatic system, the system comprising:(a) a drain valve connected to the pneumatic system, the drain valve having an open positi

[ I claim:] [1.] A condensate draining system for a pneumatic system of an engine powered vehicle, the vehicle having pneumatically operated components responsive to the pneumatic system, the system comprising:(a) a drain valve connected to the pneumatic system, the drain valve having an open position for discharging condensate and a closed position for containing pressurized air within the pneumatic system; and(b) a controller having a logic system, the controller being coupled to the drain valve and being operable to control the position of the valve between open and closed positions; and(c) a sensor for sending an engine status signal indicative of a first operational engine status and a second operational engine status, the operational engine statuses relating to a status of the engine when the engine is running;(d) wherein the controller receives the engine status signal and is operable to control the position of the drain valve according to a first schedule in response to the first operational engine status and a second schedule in response to the second operational engine status so as to prevent the accumulation of condensate in the pneumatic system.