Title:
FOUR-WAY VALVE DEVICE
Document Type and Number:
Japanese Patent JPS6138283
Kind Code:
A
Abstract:
PURPOSE:To enable a slider valve to secure the changeover of flow passage by the restriction of a spring receiving part maintaining the spring tension at the starting or ending point of the slider valve. CONSTITUTION:A spring receiving part is formed by arranging a sideward U- shaped part 16 between a slider valve 7 and a plunger 13. While a spring 18 is interposed in this spring receiving part, an open/shut part 19 is provided at the end of the sideward U-shaped part 16 on the side of the plunger 13. Within the range of the stroke L2 of the slider valve 7, force in side of a solenoid 10 is gradually accumulated in the spring tension to hold force to drive the slider valve 7, and when the force is stored to its maximum, it drives the slider valve 7 to return the former stable spring tension. Thus, the spring stroke can be well maintained within the range of the stroke L2.
Inventors:
YOSHIDA SHOICHI
Application Number:
JP15968184A
Publication Date:
February 24, 1986
Filing Date:
July 30, 1984
Export Citation:
Assignee:
TOSHIBA CORP
International Classes:
F16K39/04; F25B41/04; F16K31/06; (IPC1-7): F16K31/06; F25B41/04
Attorney, Agent or Firm:
Takehiko Suzue