Experimental investigation on cavitation performance of torque converter using transparent model

Yusuke Katayama, Yuki Hosoi, Yuta Fukuda, Satoshi Watanabe, Shin Ichi Tsuda, Yoshihide Mori, Kazuyoshi Ito

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this study, we experimentally investigated the influence of the amount of dissolved air in working fluid and the rotation speed ratio of turbine to pump elements on cavitation phenomenon in automotive torque converter. In order to directly observe the cavitation phenomenon, transparent model was used. The applied charge pressure was varied to change the significance of cavitation. The pump and turbine torques were simultaneously measured to clarify the relation between torque performance and cavitation phenomenon. As a result, the cavitation region was found to depend on the speed ratio; cavitation occurred on the suction side of turbine blades at low speed ratios while in the pump region at high speed ratios. The effect of the amount of dissolved air was significant, which enhanced the growth of cavitation bubbles through the deposition of dissolved air. In such cases, with the further decrease of charge pressure, a large number of gaseous cavitation bubbles appeared in the whole flow passage. The torque performance was deteriorated at this stage.

Original languageEnglish
Title of host publicationFluid Applications and Systems
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Electronic)9780791859056
DOIs
Publication statusPublished - Jan 1 2019
EventASME-JSME-KSME 2019 8th Joint Fluids Engineering Conference, AJKFluids 2019 - San Francisco, United States
Duration: Jul 28 2019Aug 1 2019

Publication series

NameASME-JSME-KSME 2019 8th Joint Fluids Engineering Conference, AJKFluids 2019
Volume3B-2019

Conference

ConferenceASME-JSME-KSME 2019 8th Joint Fluids Engineering Conference, AJKFluids 2019
CountryUnited States
CitySan Francisco
Period7/28/198/1/19

All Science Journal Classification (ASJC) codes

  • Fluid Flow and Transfer Processes

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