OFF LOAD PUMPING SYSTEMS COMPRISED

Brand	Owner	Address	Description
TEK-KOOL	INNOTEK CORPORATION	9140 Zachary Lane N. Maple Grove MN 55369	Off-load pumping systems comprised of pumps, motors, valves and coolers for emptying liquids and gasses from tank transport vehicles; pumping systems comprised of pumps, motors, valves and coolers for tankers to efficiently onload and offload fuel or propane; a frame-mounted hydraulic oil cooler designed specifically for trucking and agricultural applications for cooling and filtering hydraulic oil;TECH-COOL;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

High efficiency, high pressure fixed displacement pump systems and methods of control. A typical application is for engine driven high pressure pumps for powering loads such as fuel injectors and/or hydraulic engine valve actuators. The pump systems include a control valve controllably coupling the pump output back to the pump input to stop the pumping when the desired pressure of the output is reached. Reinitiating pumping an increment in crankshaft angle before a load event based in the increment in pressure needed to reach the desired pressure at the crankshaft angle of the load event provides a simple control algorithm assuring accurate repeatability in the pressure at the beginning of a load event. Pumping throughout the load event minimizes the decrease in pressure during the load event. Providing underlap in the control valve minimizes pressure peaks and maximizes efficiently when starting and stopping the pumping action. Various embodiments are disclosed.