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:
May. 14, 1985
Filed:
Dec. 16, 1982
Masahiro Urushidani, Toyota, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
A control system for ignition timing and exhaust gas recirculation which includes a vacuum controller operated by a power source of negative pressure to advance the ignition timing, an EGR valve operated by a power source of negative pressure to recirculate the exhaust gas, a temperature sensing valve sensing an engine temperature which introduces atmosphere to the vacuum controller as well as to the EGR valve when the engine temperature is low, a pressure control valve which introduces the atmosphere by a flow ratio substantially in inverse proportion to a pressure of the exhaust gas, and a negative pressure line which introduces a negative pressure at a portion in a carburetor at an upstream side from a throttle valve to the vacuum controller and the EGR valve, whereby the vacuum controller and the EGR valve are controlled in connection with each other.