Title:
SOLENOID VALVE
Document Type and Number:
Japanese Patent JPS59159477
Kind Code:
A
Abstract:
PURPOSE:To reduce a bumping noise generated between a tubular cylinder and a valve rod further simultaneously prevent the generation of heat in an electromagnetic coil and its beat sound, by fixing a buffer material mixed with magnetic powder to an upper end of the valve rod. CONSTITUTION:A buffer material 11 is fixed to the upper end of a valve rod 2. The center axis of a tubular cylinder 1 is arranged in almost the vertical direction, and the valve rod 2, when it is urged by an electromagnetic coil 8, is attracted to said coil bumping against a stopper 3 in the upper end of the cylinder 1 through the buffer material 11. While attractive force, being applied to the valve rod 2 after its collision by the buffer material 11, prevents a large bumping noise and fine vibration. Next, if the electromagnetic coil 8 is released from its urging, the valve rod 2 is dropped by its dead weight, and a ball member 6 is adapted to a valve seat 7, closing a valve.
Inventors:
MASUDA KENJI
NAKASO NOBUMASA
NAKASO NOBUMASA
Application Number:
JP3400483A
Publication Date:
September 10, 1984
Filing Date:
March 01, 1983
Export Citation:
Assignee:
MOLTEN RUBBER IND
International Classes:
F16K31/06; (IPC1-7): F16K31/06
Domestic Patent References:
| JPS5690553U | 1981-07-20 |