Title:
CONTROLLER OF GAS FLOW RATE
Document Type and Number:
Japanese Patent JPS57103508
Kind Code:
A
Abstract:
PURPOSE:To perform the assured control for both the pressure and flow rate of the gas to be controlled, by controlling a feedback sensor which senses the pressure of the exit side and then has a displacement by means of a servo valve controller. CONSTITUTION:A main valve 4 begins to open when the force caused to a main diaphragm 9 becomes larger than the force of a spring 7. Then the combustion gas starts to flow to an exit path 3 through a port 5. At the same time, the pressure of the path 3 begins to increase and is fed back to a feedback diaphragm 19 through a path 26. On the other hand, the driving signal corresponding to the degree of the thermal request is supplied to a coil 59 of a servo valve controller 50. Then the pressure caused in a chamber 53 is applied to a sensor 57 as well as to a servo valve 18 via a rod 58. Accordingly the force of the sensor 57 and the feedback pressure are balanced with the force which is caused via the diaphragm 19.
Inventors:
KOJIMA TADASHI
UCHIHAMA TETSUO
TANAKA KAZUYOSHI
MOROZUMI EIICHI
INOUE KENTAROU
SHITOU NAOMICHI
UCHIHAMA TETSUO
TANAKA KAZUYOSHI
MOROZUMI EIICHI
INOUE KENTAROU
SHITOU NAOMICHI
Application Number:
JP18111080A
Publication Date:
June 28, 1982
Filing Date:
December 19, 1980
Export Citation:
Assignee:
YAMATAKE HONEYWELL CO LTD
International Classes:
G05D7/03; G05D16/16; (IPC1-7): G05D7/00