The oil pump provides the force that delivers oil through galleries and passages around the engine. Oil pumps are usually either inside the oil pan and driven by a camshaft or outside the pan and ...

Even on the coldest winter days, heat pumps dramatically outperform traditional heating methods, from gas to oil to electrical resistance. That's especially true for ground source heat pumps ...

The landscape is dotted with oil pumps that rhythmically rise and fall as they drag the black gold on which the regional economy is based from deep beneath the ground. All recent US governments ...