US 7,090,204 B2 · Carburetor arrangement

Abstract

A carburetor arrangement for a two-stroke engine (1) is for a portable handheld work apparatus such as a motor-driven chain saw, cutoff machine or the like and has an intake channel (22). The intake channel (22) is partitioned by a partition wall (11) into an air channel (8) and a mixture channel (21). A fuel opening (27, 28) for supplying fuel to the two-stroke engine (1) opens into the mixture channel (21). The carburetor arrangement has a carburetor (17) having a carburetor housing (18) wherein an intake channel section (32) is formed. A throttle flap (24) is pivotally journalled in the carburetor housing (18). A good partitioning of the air channel (8) from the mixture channel (21) results with a simple manufacture of the carburetor (17) when a partition wall section (31, 48, 58, 68, 78, 88, 98) is configured as a separate component upstream of the throttle flap (24) and is held in the intake channel (22).

Claims26

Dependent claims

A carburetor arrangement in a portable handheld work apparatus having an internal combustion engine, the carburetor arrangement comprising:

an intake channel;
a carburetor having a carburetor housing defining a segment of said intake channel;
a partition wall for partitioning said intake channel into an air channel and a mixture channel;
a fuel opening formed in said mixture channel for supplying fuel for said engine;
said carburetor further having a throttle flap pivotally mounted in said segment of said intake channel;
and,
a section of said partition wall being configured as a separate component disposed upstream of said throttle flap and held in said intake channel.

4 more elements

Dependencies are inferred from the claim text.

Carburetor arrangement

Life of this patent

Carburetor arrangement

Life of this patent

Abstract

Claims26