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Title:
VARIABLE VALVE MECHANISM AND ACTUATOR
Document Type and Number:
WIPO Patent Application WO/2019/187825
Kind Code:
A1
Abstract:
Provided is a variable valve mechanism in which a motor 30 which outputs rotational force to the output shaft end side regulates the timing of opening and closing the intake valve and exhaust valve of an internal combustion engine. The variable valve mechanism is provided with a drive control device 50 provided on the other end side of the motor 30, which is located opposite the output shaft end, and controlling the drive of the motor 30. The drive control device 50 has a lower cover 52 located on the side thereof facing the motor 30. The motor 30 has therein a circulation flow passage 62 through which a refrigerant to which the heat of the motor 30 is transmitted flows. A gap 64 which is in communication with the circulation flow passage 62 and through which a refrigerant flows is provided between the motor 30 and the lower cover 52.

Inventors:
SHINOZAKI, Masaru (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
NAKAGAWA, Akira (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
OGAWA, Toru (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
TAKANO, Masahiro (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
MIZUNO, Daisuke (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
Application Number:
JP2019/006491
Publication Date:
October 03, 2019
Filing Date:
February 21, 2019
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORPORATION (7-3 Marunouchi 2-chome, Chiyoda-ku Tokyo, 10, 〒1008310, JP)
International Classes:
F01L1/356; F01L1/352; F01L9/04; F01L13/00
Domestic Patent References:
WO2016194544A12016-12-08
Foreign References:
JP2015059519A2015-03-30
JP2007231800A2007-09-13
JP2006307761A2006-11-09
Attorney, Agent or Firm:
SOGA, Michiharu et al. (S. Soga & Co, 8th Floor Kokusai Building, 1-1, Marunouchi 3-chome, Chiyoda-k, Tokyo 05, 〒1000005, JP)
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