Abstract: A pumping system includes a pump for moving water. In one aspect, this is in connection with performance of an operation. The system includes a variable speed motor operatively connected to drive the pump. A value indicative of flow rate of water is determined and the motor is controlled to adjust the flow rate indicative value toward a constant. A value indicative of flow pressure is determined and the motor is controlled to adjust the flow pressure indicative value toward a constant. A selection is made between flow rate control and flow pressure control. In another aspect, the pump is controlled to perform a first operation, and is operated to perform a second water operation. Control of operation of the pump to perform the first water operation is altered in response to operation of the pump to perform the second operation.

Abstract: A system for maintaining gas pressure within a gas delivery system. This system contains a first gas flow straightener, a contaminant separation tank, an inlet manifold, a rotary positive displacement compressor, a second gas flow straightener, a radiator, an oil separator/gas receiver tank, and a third gas flow straightener.

Abstract: A compressed natural gas cylinder mounting assembly is disclosed for supporting and coupling a compressed natural gas cylinder to the underside of a natural gas vehicle. The compressed natural gas cylinder mounting assembly has a pair of mounting bracket assemblies with one mounting bracket assembly coupled to each end of the compressed natural gas cylinder. Each of the mounting bracket assemblies has a pair of structural beams which are coupled to the underside of the vehicle and a pair of vertical mounting plates coupled to the ends of the structural beams and then attached to the underside of the vehicle. Each of the mounting brackets includes a cylinder brace with a pair of clamping bands for engaging and encircling the compressed natural gas cylinder. In an alternate embodiment, the structural beams are extendible.