초록 ▼

A control system for a compressor unit driven by a clean-burn, turbo-charged, gas-fueled engine which is primarily responsive to the load (torque) and the speed of the engine to adjust certain engine parameters to maintain the operating conditions of the engine within a desirable operating zone whic

A control system for a compressor unit driven by a clean-burn, turbo-charged, gas-fueled engine which is primarily responsive to the load (torque) and the speed of the engine to adjust certain engine parameters to maintain the operating conditions of the engine within a desirable operating zone which is a compromise or “trade-off”between best fuel economy and permissible exhaust emission levels. A number of “maps”which correlate load (torque) at various speeds with specific fuel consumption and exhaust emissions are derived from available manufacturer\s data and are programmed into a central processing unit (CPU). The actual speed and load of the engine are continuously monitored and signals representative thereof are inputed into the CPU to select the proper map and to output control signals therefrom to adjust the ignition timing, the waste gate (air chest pressure) and the fuel pressure to the prechambers of the engine to their respective desired positions which, in turn, will provide the desired engine operation at the sensed speed and load conditions. The operation can be “fine-tuned”within the selected zone of operation through the use of other measured engine parameters.

대표청구항 ▼

An engine-driven compressor unit comprising: a gaseous fueled engine having: a prechamber for each combustion cylinder of said engine in which the ignition is initiated; a prechamber fuel pressure regulator for controlling gaseous fuel flow to the prechamber; an air chest for storing air under press

An engine-driven compressor unit comprising: a gaseous fueled engine having: a prechamber for each combustion cylinder of said engine in which the ignition is initiated; a prechamber fuel pressure regulator for controlling gaseous fuel flow to the prechamber; an air chest for storing air under pressure for mixing with the fuel for said engine; a turbocharger driven by the exhaust from the engine to supply said air under pressure to said air chest; a waste gate for controlling the amount of exhaust to drive said turbocharger; ignition timing means; and a drive shaft; a compressor having a driven shaft; a flexible coupling connecting said drive shaft and said driven shaft together; and means for continuously measuring the torque developed in said flexible coupling during operation and for generating a signal representative of said measured torque.