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:
Mar. 08, 2005
Filed:
Aug. 15, 2003
Toshio Takayama, Yamanashi-ken, JP;
Takuya Obata, Yamanashi-ken, JP;
Toshio Takayama, Yamanashi-ken, JP;
Takuya Obata, Yamanashi-ken, JP;
Tokico Ltd., Kawasaki, JP;
Abstract
There is provided a pneumatic booster having an ejector, which achieves space-saving and enables easy piping. An ejectoris provided within a constant-pressure chamberformed in an outer shell. A connecting pipecommunicated with an outlet of a diffuser and a connecting pipe communicated with an inlet of a nozzle extend outward of the shell, and a suction port is open to the inside of the constant-pressure chamberthrough a check valve. The connecting pipeis communicated with the constant-pressure chamberthrough a check valve, and is connected to a suction pipe of an engine (a source of a negative pressure). The connecting pipe on the inlet side of the nozzle is connected to an air cleaner (the atmosphere). A negative pressure is directly supplied from the connecting pipeto the constant-pressure chamberthrough the check valve. The ejectoris operated to supply a high degree of vacuum to the constant-pressure chamberthrough the suction port. The ejectoris provided within the constant-pressure chamberso as to achieve space-saving. The check valveis provided in the ejectorand the connecting pipeis extended outward of the shell, so as to enable easy piping.