Ratio control gas check

Application Number: 00108002
Application Date: 2000.05.31
Publication Number: 1307196
Publication Date: 2001.08.08
Priority Information: 2000/2/3 US 09/496,660
International: F16K17/20;F16K31/04;G05D7/06
Applicant(s) Name: Guanzhong Co., Ltd.
Inventor(s) Name: Godehn Fee
Patent Agency Code: 72002
Patent Agent: li shumeng
Abstract A proportional control gas valve includes a valve body formed with an inlet having a first orifice, a first chamber communication with the inlet through the orifice, a second chamber formed with a balancing orifice and a second orifice, a third chamber in communication with the first chamber through the balancing orifice, a fourth chamber in communication with the first chamber via the second orifice, a fifth chamber in communication with the fourth chamber, and an outlet in communication with the fifth chamber, a solenoid assembly mounted in the first chamber; a main diaphragm arranged between the inlet and the third chamber, a regulation diaphragm mounted inside the fifth chamber, and a servomotor drivingly, whereby the proportional control gas valve only requires a small amount of energy to control the gas pressure and flow rate simultaneously.