Abstract: A direct use of combustion fluid from cylinder(s) of a prime mover is used to supply compressible fluid to a pneumatic system. The fluid is extracted from combustion chamber(s)(2) during the compression and power cycles. The fluid is cooled, filtered, and dried to provide a clean media for the pneumatic system.

Abstract: Controlling one or more component of a vehicle air supply system, such as an air compressor or an air dryer, based on an engine control signal. Examples of engine control signals include emission control signals, turbocharger status signals, coolant temperature signals, and ambient temperature signals.

Abstract: Controlling air compressors based on a temperature of air compressed by the air compressor. A temperature of air compressed by the air compressor is sensed. The sensed compressed air temperature is compared with a predetermined threshold temperature. The air compressor is deactivated when the sensed temperature exceeds the threshold temperature. The threshold temperature may be selected to inhibit carbon formation caused by oil thermal breakdown.

Abstract: In an internal combustion engine, a barring adapter member is mounted on an auxiliary engine component, such as an air compressor shaft which is geared to the engine crankshaft. The barring adapter member is configured to receive a barring tool, permitting manual rotation of the air compressor shaft for desirably positioning engine crankshaft-driven components during engine repair or adjustment. In an arrangement according to the invention, the air compressor gear is enclosed by a gear casing, but the adapter is accessible through an aperture closeable by a removable cap. The barring adapter member facilitates barring the engine from a convenient position and is particularly advantageous in an engine designed to eliminate most externally-exposed rotational shaft seals and associated external pulleys conventionally used as barring locations.

Abstract: In an internal combustion engine, a barring adapter member is mounted on an auxiliary engine component, such as an air compressor shaft which is geared to the engine crankshaft. The barring adapter member is configured to receive a barring tool, permitting manual rotation of the air compressor shaft for desirably positioning engine crankshaft-driven components during engine repair or adjustment. In an arrangement according to the invention, the air compressor gear is enclosed by a gear casing, but the adapter is accessible through an aperture closeable by a removable cap. The barring adapter member facilitates barring the engine from a convenient position and is particularly advantageous in an engine designed to eliminate most externally-exposed rotational shaft seals and associated external pulleys conventionally used as barring locations.

Abstract: A unique air dryer for use in an air compressor system which includes an air governor, an air compressor and a storage tank is disclosed. The air dryer incorporates therein an isolation valve adjacent the inlet from the compressor which serves to isolate the compressor during the unloading cycle. Also incorporated into the housing of the air dryer is a purge valve which is simultenously opened when the isolation valve is closed, and vice versa. A check valve is also incorporated into the air dryer housing adjacent the outlet to the storage tank. Finally, a small conduit connecting the inlet port from the compressor to the outlet of the air dryer is included. A small check valve is disposed within the conduit so that air flow is only permitted to flow from the outlet to the inlet when the system is in its unloaded mode in order to maintain pressure in the pipe which connects the compressor to the air dryer.

Abstract: In its broad aspect, the present invention involves a governor-controlled gas compressor system for maintaining gas pressure in a gas reservoir between a predetermined first pressure level at which said compressor commences to compress pressurized intake gas from a supercharged source thereof and a predetermined higher second pressure level at which the compressor ceases to compress said gas. The system includes a gas dryer vessel intermediate said compressor and said reservoir to effect drying of the compressed gas. The gas dryer is provided with means for exhausting purge gas therefrom only when the pressure of the purge gas exceeds the pressure of the pressurized intake gas from the supercharged source thereof.