Patent · US Expired

Carburetor

US7000906B2 · kind B2 · utility

3Cited by

5References

17Claims

0Family size

Assignee

Andreas Stihl AG & Co. KG · DE

Inventors

Klaus Geyer · Pocking, DE
Arno Kinnen · Fellbach, DE
Jan Borchardt · Kiel, DE
Reinhard Gerhardy · Bad Marienberg, DE

Key dates

Filing date	Jun 21, 2004
Grant date	Feb 21, 2006
Priority date	—
Expiry date	Jun 21, 2024

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S261/37
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A carburetor for an internal combustion engine includes an intake channel section (2) as well as a throttle element journalled in the intake channel section (2). The throttle element is adjustable between a full-load position (25) and an idle position (26). A pump (20, 30) is provided for additional fuel metering and this pump includes a pumping chamber (24, 34) and a pump piston (21, 31) guided in the pumping chamber (24, 34). The position of the pump piston (21, 31) is coupled to the position of the throttle element. To ensure an optimal supply of the internal combustion engine with fuel in each operating state, the pump piston (21, 31) is so coupled to the throttle element that fuel is pumped from the pumping chamber (24, 34) into the intake channel section (2) when there is a displacement of the throttle element from the full throttle position (25) into the idle position (26).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.