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안종선(Jongsun An),최수길(Sugil Choi) 한국자동차공학회 2018 한국자동차공학회 학술대회 및 전시회 Vol.2018 No.11
The spool valve is composed of a spool and a sleeve, and it is widely equipped with automobile injectors, an operating lever of a tractor. However, the spool valve that performs linear reciprocating motion is problematic in fluid locking. Several methods have been proposed to solve this problem, and the most representative method is a plurality of grooves are processed in the spool land. Currently, spool valves are widely used in various industrial fields, but theoretical studies of groove processing in spool valve are inadequate, mostly dependent on the experience of the processor. In this thesis, through grasping the flow characteristics along the groove shape of the spool valve, we were trying to select the optimum design specification. We compared and verified by analysis using CFD program and actual test.
안종선(Jongsun An),최수길(Sugil Choi) 한국자동차공학회 2019 한국자동차공학회 학술대회 및 전시회 Vol.2019 No.11
Most of existing papers have been related to rotor tooth design such as Gerotor pump trochoid shape design method and tooth design program. However, since the Gerotor pump is configured not only with the rotor but also with the cover, mid and base plate, there are many factors to consider as well as the teeth. In this paper, not only the rotor teeth but also the factors affecting the rotor rotor pump were analyzed and the optimization specifications for each influence factor were examined.