Title:
FLOW RATE ADJUSTING VALVE UTILIZING DC MOTOR
Document Type and Number:
Japanese Patent JP3174036
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a flow rate adjusting valve utilizing a DC motor in which use of a thermal expansion fluid and a diaphragm and the like is eliminated, and proportional control is assured to further improve flow rate adjustment performance and durability.
SOLUTION: There are provided a valve housing 21 where an inflow port and a discharge port are formed on opposite sides to form a guide space communicated with the inflow port and the discharge port therein, a spool 22 coupled with the guide space of the valve housing 21 freely to ascend and descend for adjusting the degree of opening of the discharge outlet, a spool guide 23 accommodated in an upper portion of the guide space for forcing a liquid refrigerant to pass through to a lower side while ascending/descending together with the spool 22, resilience means 24 for resiliently supporting the spool guide 23 in one direction, sealing means 25 coupled with a lower portion of the valve housing while surrounding the spool for preventing the fluid refrigerant from leaking, and driving means 41, 42, 43, 44 including a DC 31 motor for ascending/ descending the spool.
Inventors:
Choi Yui
Application Number:
JP10414699A
Publication Date:
June 11, 2001
Filing Date:
April 12, 1999
Export Citation:
Assignee:
Samsung Electronics Co.,Ltd.
International Classes:
F16K31/04; F16K31/524; F16K31/54; F25B41/06; (IPC1-7): F25B41/06
Domestic Patent References:
| JP5288286A | ||||
| JP6343055U |
Attorney, Agent or Firm:
Tadahiko Ito (1 outside)