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:
Aug. 16, 1994
Filed:
May. 14, 1993
Roland Adam, Besigheim, DE;
Other;
Abstract
A fuel-injection arrangement and a two-stroke engine define a combination for a portable handheld work apparatus such as a motor-driven chain saw or the like. The combination includes a fuel-feed pump for pumping fuel from a fuel tank and a fuel-injection pump for supplying the fuel for injection into the engine. The fuel-feed pump and the fuel-injection pump are mounted in a con, non injection-pump block separate from the engine. The engine has an intake channel through which combustion air is drawn into the engine and the intake channel is configured so as to open directly into the engine. A throttle flap is pivotally mounted in the intake channel as to be completely separate from the common injection-pump block. The injection pump block is effectively thermally decoupled from the intake channel. The danger of vapor bubble formation because of a heating of the injection pump is thereby reliably avoided. A good decoupling of the injection pump from intensely vibrating engine components can also be provided in this manner.