Abstract Powers of energy losses in a variable capacity displacement pump are compared with or without taking into account the power of hydraulic oil compression. Evaluation of power of liquid compression in the pump was made possible by the use of method, proposed by the Author, of determining the degree of liquid aeration in the pump. In the method of determining the liquid aeration in the pump and of powers of volumetric losses of liquid compression a simplified formula ($ q_{Pvc} $ × $ Δp_{Pi} $)/2 was used describing the field of indicated work of volumetric losses $ q_{Pvc} $ of liquid compression during one shaft revolution at indicated increase $ Δp_{Pi} $ of pressure in the chambers. Three methods were used for comparing the sum of powers of volumetric losses $ ΔP_{Pvl} $ due to leakage and $ ΔP_{Pvc} $ of compression and also $ ΔP_{Pm|ΔpPi} $ of mechanical losses resulting from increase $ Δp_{Pi} $ of indicated pressure in the working chambers.
Comparison Of The Powers Of Energy Losses In A Variable Capacity Displacement Pump Determined Without Or With Taking Into Account The Power Of Hydraulic Oil Compression
Polish Maritime Research ; 22 , 2 ; 32-43
2015
Article (Journal)
Unknown
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