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Abstract
The volumetric, torque and total efficiency of hydraulic pumps change during start-up in low ambient temperatures, as well as in thermal shock conditions, un-til they reach the set conditions. The time to reach steady-state conditions de-pends on many parameters: ambient temperature, flow rate, fluid temperature, design of hydraulic units. The author carried out tests of hydraulic pumps in the Hydraulics Laboratory of the Faculty of Mechanical Engineering of the Gdańsk University of Technology. In the research four types of pumps were investigated: several gear pumps, two axial piston pumps of different designs and one radial piston pump. It was proved, that in thermal shock conditions some malfunctions may occur, espe-cially with large temperature difference between oil and pump. Experimental research of various hydraulic pumps operating in low ambient temperatures, undertaken by the author, allows to answer the question how the volumetric and torque efficiency changes in such conditions and what parame-ters does it depend on.
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Details
- Category:
- Monographic publication
- Type:
- rozdział, artykuł w książce - dziele zbiorowym /podręczniku w języku o zasięgu międzynarodowym
- Title of issue:
- Advances in Hydraulic and Pneumatic Drives and Control 2020 strony 28 - 39
- Language:
- English
- Publication year:
- 2021
- Bibliographic description:
- Jasiński R.: Volumetric and torque efficiency of pumps during start-up in low ambient temperatures// Advances in Hydraulic and Pneumatic Drives and Control 2020/ Springer: , 2021, s.28-39
- DOI:
- Digital Object Identifier (open in new tab) 10.1007/978-3-030-59509-8
- Verified by:
- Gdańsk University of Technology
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