Patent ID: 7128089
Filing Date: 2006-10-31
Classification: F16K,Y10T

Abstract:
1. An electro-mechanical variable fluid flow restrictor, comprising: an electronic controller operatively coupled to the variable fluid flow restrictor; a pressure sensor coupled to the electronic controller; an electronically controlled electro-mechanical actuator operatively coupled to the variable fluid flow restrictor and responsive to the electronic controller; the variable fluid flow restrictor further comprising a support having a passage and a seal surface, the seal surface having at least one channel; a deformable seal engageable with the seal surface and with the at least one channel; and a bias member capable of exerting an electronically controlled variable bias against the deformable seal, wherein when the variable fluid flow restrictor opens, the deformable seal at least partially disengages the at least one channel prior to disengaging from the seal surface enabling fluid to flow through the at least one channel and through the passage, thus making the restrictor a closed-loop electronically controlled variable fluid flow restrictor.