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. 09, 1996
Filed:
May. 04, 1995
Tien-Ho Gau, Hsinchu, TW;
Yu-Yin Peng, Hsinchu, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
An engine air intake system comprises a main air duct and at least one bypass air duct, which are located side by side. The bypass air duct is smaller in cross-sectional area than the main air duct which is provided with a throttle contiguous to the bypass air duct having therein a control valve. The throttle and the control valve are regulated by a link mechanism such that the throttle is closed when the engine is operating at a low or intermediate load rate, and that the control valve is opened partially when the throttle remains closed, thereby resulting in an acceleration of air current flowing through the bypass air duct and an improvement in the tumble or swirl ratio. As the engine is operating at a progressively increasing load rate, the throttle is caused to open gradually to bring about an increase in the engine air intake volume so as to enable the engine to operate under the optimum condition.