Title:
MOTORIZED VALVE AND REFRIGERATION CYCLE SYSTEM
Document Type and Number:
WIPO Patent Application WO/2017/169319
Kind Code:
A1
Abstract:
[Problem] To provide a motorized valve with good operability and a refrigeration cycle system using said motorized valve. [Solution] A motorized valve of a type that uses threaded coupling of a male threaded member and a female threaded member to convert a rotational motion of a rotor into a linear motion, and causes a valve body that is housed within a valve main body to move in an axial direction with the guidance a valve body guiding member on the basis of this linear motion, while also canceling out a force that is due to a pressure difference between a plurality of interior spaces when the valve is in an open state, said motorized valve comprising a valve seat on which the valve body is seated, and a plurality of communication passages by which the interior spaces are in communication with one another, wherein the effective cross-sectional area of a communication passage that is located in a location far from the valve seat is formed so as not to be smaller than the effective cross-sectional area of a communication passage that is located in a location close to the valve seat.
More Like This:
Inventors:
ISHIGURO MOTOYASU (JP)
KITAMI YUKI (JP)
NAKAGAWA TAIKI (JP)
TANABE TAMAMI (JP)
KITAMI YUKI (JP)
NAKAGAWA TAIKI (JP)
TANABE TAMAMI (JP)
Application Number:
PCT/JP2017/006552
Publication Date:
October 05, 2017
Filing Date:
February 22, 2017
Export Citation:
Assignee:
SAGINOMIYA SEISAKUSHO INC (JP)
International Classes:
F16K31/50; F16K31/04; F25B41/06
Foreign References:
| JP2000320712A | 2000-11-24 | |||
| JP2013130271A | 2013-07-04 |
Attorney, Agent or Firm:
SSINPAT PATENT FIRM (JP)
Download PDF: