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US 5,049,318 AGranted
Carburetor assembly
AssigneeTecumseh Products Company
InventorsThomas G. Guntly, Mark E. Federspiel, Michael J. Kurth
Life of this patent
Estimating the term…
Abstract
A carburetor assembly which has a body formed of extruded aluminum and a plastic fuel bowl assembly secured to the body by means of a resilient spring clip. A gasket is located between the body and the fuel bowl. The fuel bowl is molded of plastic and includes an integral well, and a mixing screw housing as well as a primer housing. A plastic nozzle extends from the well through the venturi insert into a through passage into the body. The venturi insert is made of plastic material and includes molded grooves therein which form passages with the through passage of the body. The nozzle is resiliently urged against the gasket and the body by means of a spring located in the well thereby sealing the nozzle to the body.
Claims34
A carburetor assembly comprising:
- an extruded body, said body including a through passage having an air inlet;
- a fuel bowl secured to said body;
- means for conducting fuel from said bowl into said through passage;
- and
- a generally cylindrical venturi member mounted in said through passage, said fuel conducting means adapted to conduct fuel into said venturi member;
- wherein said venturi member is a generally cylindrical member, one end portion of said member being resilient and having a radially outwardly tapered circumference, whereby said one end portion, upon insertion of said venturi member into said through passage, is deflected inwardly and forms a circumferential seal with said through passage.
3 more elements
A carburetor assembly comprising:
- an extruded body, said body including a through passage having an air inlet;
- a fuel bowl secured to said body;
- and
- means for conducting fuel from said bowl into said through passage;
- wherein said venturi member is a generally cylindrical member having an annular groove around its outer circumference, said venturi member further including an axial groove in its outer circumference, said axial groove being interconnected with said annular groove, said annular groove and axial groove forming respectively an annular channel and an axial chamber with said through passage, said annular channel being interconnected with said fuel bowl by a generally radial passage in said extruded body, and said axial channel being open to said through passage.
2 more elements
A carburetor assembly comprising:
- an extruded body, said body including a through passage having an air inlet;
- a fuel bowl secured to said body;
- means for conducting fuel from said bowl into said through passage;
- and
- a resilient spring means for urging said means for conducting into sealing engagement with said extruded body.
2 more elements
A carburetor assembly comprising:
- an extruded body including a through passage therein adapted to admit air into said body;
- a venturi member mounted in said passage;
- a fuel bowl;
- a resilient clip means for securing said fuel bowl to said body;
- and
- nozzle means for conducting fuel from said fuel bowl into said venturi member;
- wherein said venturi member is a generally cylindrical member, one edge portion of said venturi member being resilient and having a radially outwardly tapered circumference, whereby said one edge portion, upon insertion of said venturi member into said passage, is deflected inwardly and forms a circumferential seal with said passage.
4 more elements
A carburetor assembly comprising:
- an extruded body including a through passage therein adapted to admit air into said body;
- a venturi member mounted in said passage;
- a fuel bowl;
- a resilient clip means for securing said fuel bowl to said body;
- and
- nozzle means for conducting fuel from said fuel bowl into said venturi member;
- wherein said venturi member is a generally cylindrical member having an annular groove around its outer circumference, said venturi member further including an axial groove in its outer circumference, said axial groove being interconnected with said annular groove, said annular groove and axial groove forming a respective annular channel and axial channel with said through passage, said annular channel interconnected with said fuel bowl by a generally radial passage in said body and said axial channel being open to said through passage.
4 more elements
A carburetor assembly comprising:
- a body including a through passage therein adapted to admit air into said body;
- a venturi member mounted in said passage;
- a fuel bowl;
- a resilient clip means for securing said fuel bowl to said body;
- nozzle means for conducting fuel from said fuel bowl into said venturi member;
- and a well integrally molded into said bowl, wherein said nozzle means comprises a tube that extends into said well, said tube being resiliently sealingly urged against said body by a spring, said tube being sealed against said well by an O-ring disposed between said tube and said well.
3 more elements
A carburetor assembly comprising:
- an extruded body including a through passage therein adapted to admit air into said body;
- a venturi member mounted in said passage;
- a fuel bowl;
- a resilient clip means for securing said fuel bowl to said body;
- and
- nozzle means for conducting fuel from said fuel bowl into said venturi member;
- wherein said fuel bowl assembly is molded from plastic and includes an idle mixture screw aperture and a main mixture screw aperture, an idle screw with self-tapping threads being threadedly received in said idle screw aperture, a main mixture screw with self-tapping threads being threadedly received in said screw aperture.
4 more elements
A carburetor assembly comprising:
- an extruded body, said body including a through passage having an air inlet;
- a fuel bowl secured to said body;
- and
- means for conducting fuel from said bowl into said through passage;
- wherein said fuel bowl is molded from plastic and includes a fuel reservoir, an idle mixture adjusting screw aperture and a main mixture adjusting screw aperture, an idle screw with self-tapping threads threadedly received in said idle screw aperture, and a main screw with self-tapping threads threadedly received in said main screw aperture.
2 more elements
A carburetor assembly comprising:
- a body, said body including a through passage having an air inlet and a fuel-air outlet, said body including an inner surface;
- a generally cylindrical venturi member axially mounted in said through passage, said venturi member having a generally cylindrical outer surface that extends around said through passage inner surface and having a radial opening therein;
- a fuel bowl secured to said body;
- and
- fuel conducting means comprising a nozzle member that extends from said bowl through said body into said radial opening for conducting fuel from said bowl to said venturi member,
- said venturi member including a groove in its outer surface forming with said passage inner surface a channel, said channel being interconnected with said fuel bowl by a passage in said body, said channel being open to said through passage.
3 more elements
A carburetor comprising:
- an extruded body including a through passage therein adapted to admit air into said body, said body including a pair of flanges extending parallel to said through passage, said flanges defining shoulders;
- a venturi member mounted in said passage;
- a fuel bowl including a well integrally formed therein;
- a resilient clip means for securing said fuel bowl to said body, said clip means including a pair of bights that are seated on said shoulders and are connected by a center portion of said clip means that extends under said bowl to thereby clamp said bowl to said body;
- and
- a nozzle tube having a lower end extending into said well and an upper end extending into said venturi member, said nozzle tube being clamped by said bowl to said body member.
3 more elements
A carburetor assembly comprising:
- a body, said body including a through passage having an air inlet;
- means for conducting fuel from said bowl into said through passage;
- and
- a generally cylindrical venturi member mounted in said through passage, said fuel conducting means adapted to conduct fuel into said venturi member, said venturi member including an annular lip portion that is resiliently urged radially outward against said through passage to form a circumferential seal with said through passage;
- said venturi member including a radial passageway, said means for conducting comprising a tubular member which connects with said radial passageway.
2 more elements
Dependencies are inferred from the claim text.