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. 30, 1985
Filed:
Nov. 23, 1982
Soren Udd, Nodinge, SE;
AB Volvo, Gothenburg, SE;
Abstract
A system for controlling the charge air in a turbocharged vehicle diesel engine having a charge air cooler comprises a two-way valve which has a position in which it conducts charge air from the compressor to the charge air cooler and a position in which it conducts charge air past the cooler. The valve is controlled by the charge air pressure and has a delay function, so that all the charge air is conducted past the cooler during rapid acceleration (rapid pressure change) from low load, thereby achieving an increase in the engine combustion chamber temperature during the first portion of the fuel injection, so as to prevent increased noise emission. At slow pressure changes the valve adjusts itself in response to the charge pressure, so that all the charge air is conducted via the cooler at constant high load.