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:
Jan. 31, 1984
Filed:
May. 19, 1982
Tetsuo Yamagata, Tokyo, JP;
Morio Sato, Yokohama, JP;
Tetsuo Ogishima, Shiki, JP;
Yoji Matsuyama, Higashiyamato, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
An intake pipe pressure indicating system for an internal combustion engine of a vehicle having an intake pipe including a supercharger and a throttle valve. The system comprises sensors which detect the internal pressure of the intake pipe at an upstream position and at a downstream position, respectively, with respect to the throttle valve and provides corresponding output signals. A comparator provides a logic signal based on the result of a comparison between the output signal from either of the sensors and a reference value. A selection circuit is provided which is adapted to select and to transmit and output either of the output signals on the basis of the logic signal, and a single indicator is provided which is adapted to provide an indication corresponding to the output signal of the selection circuit. The respective intake pipe pressures at the upstream position and at the downstream position with respect to the throttle valve can be selectively indicated by a single indicator in a continuous manner so that the indicator is used effectively.