Internal-combustion engine arrangement with improved carburetor mounting
AssigneeFochtel & Sachs AG
InventorHermann Appelbaum
Life of this patent
Estimating the term…
Abstract
The carburetor of a motorcycle engine is fastened to an engine cylinder by a thin resilient hose connecting the fuel mixture outlet port of the carburetor to the intake port of the cylinder. The carburetor is fastened to the casing of the associated air cleaner much more rigidly than it is fastened to the cylinder. The fastening connection between the carburetor and the air cleaner casing is provided by a tubular member having a wider orifice fastened to said casing, a narrower orifice fastened to the carburetor, and a shoulder portion connecting the orifices and of greater wall thickness near the float chamber in the carburetor than elsewhere.
Claims7
An internal-combustion arrangement comprising:
- (a) a support;
- (b) a cylinder mounted on said support and having an extended intake port for fuel mixture;
- (c) an air cleaner casing mounted on said support;
- (d) a carburetor having an air-inlet port and an extended fuel-mixture outlet port, said carburetor including a float chamber, said fuel-mixture outlet port being closely spaced from and in general alignment with said intake port so that a narrow annular gap having a length less than either of said outlet port or intake port exists between said outlet port and intake port;
- (e) first fastening means fastening said carburetor to said cylinder and including a thin, resilient hose connecting said outlet port to said intake port, said hose bridging the narrow annular gap between said outlet port and intake port and the dimensional relationship of said hose, outlet port, intake port and annular gap being such that said hose does not enter into the annular gap during engine operation;
- and
- (f) second fastening means fastening said carburetor to said air cleaner casing more rigidly than said carburetor is fastened to said cylinder by said first fastening means whereby said carburetor is mounted on said cylinder and air cleaner casing so that it does not oscillate at an amplitude sufficient to cause frothing of liquid fuel in said flow chamber.
Dependencies are inferred from the claim text.