Title:
VALVE DEVICE AND METHOD FOR MANUFACTURING VALVE DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/039225
Kind Code:
A1
Abstract:
A speed reduction mechanism (50) includes a plurality of gears (52-55) that transmit torque of a motor (60). A shaft (30) rotates about the axis in response to the torque transmitted from the speed reduction mechanism (50). A valve body (40) is integrally formed with the shaft (30) by insert molding and rotates together with the shaft (30). A housing (10) has housed therein a fluid passage (11) so as to allow the valve body (40) to be rotatable and has, in a part of the fluid passage (11), a valve seat (20) that allows the valve body (40) to sit thereon and separate therefrom. The shaft (30) includes a positioning part (32, 321-326) enabling positioning in the rotation direction. Furthermore, the shaft (30) and the valve gear (52) that fits in an end portion (31) of the shaft (30) are configured to fit in a state of being rotatable relative to each other during assembling, and the valve gear (52) and the shaft (30) are fixed so as not to relatively rotate during driving.
Inventors:
WATAKABE ICHIYOSHI (JP)
MORITANI YUICHIRO (JP)
MORITANI YUICHIRO (JP)
Application Number:
PCT/JP2020/028603
Publication Date:
March 04, 2021
Filing Date:
July 24, 2020
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
F16K5/04; F02D9/02; F02M26/54; F02M26/70; F02M26/71; F16K31/53
Foreign References:
| JP2019044815A | 2019-03-22 | |||
| JP2008019787A | 2008-01-31 | |||
| JP2010053713A | 2010-03-11 | |||
| JP2015218833A | 2015-12-07 | |||
| JP2013044415A | 2013-03-04 |
Attorney, Agent or Firm:
YOU-I PATENT FIRM (JP)
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