F - Mech Eng,Light,Heat,Weapons – 16 – K
Patent
F - Mech Eng,Light,Heat,Weapons
16
K
F16K 31/06 (2006.01) F16K 31/128 (2006.01) F16K 31/42 (2006.01) G05D 7/01 (2006.01) G05D 7/06 (2006.01) G05D 16/06 (2006.01) G05D 16/20 (2006.01)
Patent
CA 2298748
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 for controlling gas flowing from the first chamber to the fourth chamber via the second orifice, a main diaphragm arranged between the inlet and the third chamber, a valve spring mounted under the main diaphragm and urging the main diaphragm to move upwardly to close a passage from the inlet to the third chamber, a regulation diaphragm mounted inside the fifth chamber, a regulation spring mounted on the regulation diaphragm, an adjust stem connected with the regulation diaphragm for controlling gas flow rate from the fourth chamber to the outlet, and a servomotor drivingly connected with the adjust stem, whereby the proportional control gas valve only requires a small amount of energy to control the gas pressure and flow rate simultaneously.
Cybertech Ventures Inc.
Sim & Mcburney
LandOfFree
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