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:
Apr. 16, 1985
Filed:
Jun. 02, 1983
Christian J Rahnke, Orchard Lake, MI (US);
Ford Motor Company, Dearborn, MI (US);
Abstract
An internal combustion engine has an air-fuel mixture compressed through operation of a turbocharger whose turbine is driven by the exhaust gas from the engine and whose compressor is driven by the turbine. The pressure within the intake manifold is used to produce a signal by means of which the winding of a solenoid-operated direction valve is energized. A flapper valve located within the exhaust gas manifold opens and closes passages within the turbine casing through operation of the solenoid valve. A piston actuates the flapper valve in accordance with intake manifold pressure. Exhaust gas is directed either entirely at high speed through a first passage or at low speed through a second passage, the cross sectional area of the first passage being substantially less than that of the second passage.