Patent · US Active

Air valve and method of use

US7658177B2 · kind B2 · utility

17Cited by
35References
17Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 2, 2007
Grant dateFeb 9, 2010
Priority date
Expiry dateDec 10, 2027

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF02D2200/0404
  • WIPO fieldEngines, pumps, turbines
  • WIPO sectorMechanical engineering

Abstract

An air valve and its method of use including an air valve housing; a throttle plate disposed on a throttle shaft; a driven gear attached on the throttle shaft; a brushless direct current motor assembly in connection via a pinion with the driven gear; an integrated electronic valve controller including digital signal processing on a circuit board; and a throttle position sensor on the circuit board, wherein the throttle position sensor includes at least one non-contact type sensor. In a preferred embodiment, the air valve includes an inlet port and an outlet port connected to an engine via an air intake manifold, such that re-circulated exhaust gas is introduced into the air intake manifold.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.