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:
Feb. 28, 1978
Filed:
Mar. 29, 1977
Haruhiko Saito, Nagoya, JA;
Michio Morishita, Toyota, JA;
Toyota Jidosha Kogyo Kabushiki Kaisha, Toyota, JA;
Abstract
A carburetor with an auxiliary accelerator-pump system including a diaphragm pump. This diaphragm pump includes a fuel chamber and a vacuum chamber which are separated by a spring-loaded diaphragm. The fuel chamber leads by way of a check valve to a fuel reservoir or float bowl in the carburetor and by way of another check valve to a pump jet or nozzle which is open into the intake passage of the carburetor, while the vacuum chamber leads to a vacuum take-off port open into the intake passage downstream of its throttle valve. This fuel chamber is communicated by way of a valve with the fuel reservoir or float bowl, the aforesaid valve being actuated in response to a vacuum prevailing in the intake passage downstream of the throttle valve.