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

Zygmunt PaszotaGda?sk Univeristy of Technology, PolandOther articles by this author:De Gruyter OnlineGoogle Scholar¹ 

[1] Gda?sk Univeristy of Technology, Poland

关键词: Keywords: hydrostatic drive;    variable capacity displacement pump;    volumetric losses of hydraulic oil;   

DOI  :  10.1515/pomr-2015-0015

学科分类：工程和技术（综合）

来源: Politechnika Gdanska * Wydzial Oceanotechniki i Okretownictwa

【 摘 要 】

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 (qPvc × ΔpPi)/2 was used describing the field of indicated work of volumetric losses qPvc of liquid compression during one shaft revolution at indicated increase ΔpPi of pressure in the chambers. Three methods were used for comparing the sum of powers of volumetric losses ΔPPvl due to leakage and ΔPPvc of compression and also ΔPPm|ΔpPi of mechanical losses resulting from increase ΔpPi of indicated pressure in the working chambers.

【 授权许可】

Unknown