The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 22, 1997
Filed:
Jun. 13, 1996
Ansel B Flanery, Jr, Brighton, MI (US);
William F Stockhausen, Northville, MI (US);
Robert A Stein, Saline, MI (US);
Ford Global Technologies, Inc., Dearborn, MI (US);
Abstract
An air intake system for an internal combustion engine having a load controlled port throttle system. Specifically the air intake system includes an idle speed control assembly (30), with a metered air line (28) supplying air to a slide metering valve (32). Idle air lines (34) lead from the slide metering valve (32) to the intake ports (16) downstream of the throttle valves (20). The slide metering valve (32) includes a slider plate (50), which can be moved by a solenoid (42) to maintain varying degrees of alignment with outlet passages (48) to the idle air lines (34). In this way, precise amounts of idle air are metered to the intake ports (16) with equal cylinder-to-cylinder air flow and without substantial cross-communication of air between cylinders. A vacuum assembly may also tap into the idle air lines (34) to provide a stable source of vacuum for other engine components.