US3237618A

US3237618A - Carburetor mounting means

Info

Publication number: US3237618A
Application number: US402306A
Authority: US
Inventors: Frank J Winchell
Original assignee: Motors Liquidation Co
Current assignee: Motors Liquidation Co
Priority date: 1964-10-07
Filing date: 1964-10-07
Publication date: 1966-03-01
Anticipated expiration: 1983-03-01

Description

March 1, 1966 F. J. WINCHELL CARBURETOR MOUNTING MEANS Filed Oct. 7, 1964 I N V E N TOR. 77.22% ZZZ mafia QKW United States Patent 3,237,618 CARBURETOR MOUNTING MEANS Frank J. Winchell, Bloomfield Hills, Mich., assignor to General Motors Corporation, Detroit, Mich., a corporation of Delaware Filed Oct. 7, 1964, Ser. No. 402,306 Claims. (Cl. 123-122) This invention relates to internal combustion engines and more particularly to a carburetor mounting means.

One feature of this invention is that it provides improved means for mounting a carburetor on an engine manifold.

Another feature of this invention is that it provides improved means for mounting a carburetor on both an intake manifold and an exhaust manifold as well as providing means for heating the combustible mixture within the carburetor from the exhaust manifold.

A further feature of this invention is that it provides a saddle member mounting a carburetor on an intake manifold and an exhaust manifold and including a sump for collecting unatomized fuel and locating this unatomized fuel so as to be vaporized by the heat from the exhaust manifold.

These and other features of this invention will be ap parent from the following specification and drawing wherein:

FIGURE 1 is an elevational view of an internal combustion engine embodying a carburetor mounting means of this invention;

FIGURE 2 is an enlarged sectional view taken generally along the plane indicated by line 2-2 of FIGURE 1; and

FIGURE 3 is a sectional view taken generally along the plane indicated by line 3-3 of FIGURE 2.

Referring now to the drawing, an air cooled opposed cylinder internal combustion engine designated generally includes intake manifolds 12 for supplying combustible mixture to the opposite banks of cylinders and an exhaust manifold 14 for collecting exhaust gases from the banks of cylinders. A carburetor 16 having an induction passage 18 is adapted to supply the combustible mixture to the manifolds 12 as will be described.

The carburetor mounting means of this invention includes a saddle member 20 having a generally U shaped saddle portion 22 which seats on a crossover portion 24 of the exhaust manifold 14. The carburetor 16 is mounted on the saddle member at the end opposite the U shaped saddle portion. A U bolt 26 surrounds both the saddle member and the crossover portion 24 of the exhaust manifold and threaded ends thereof are received within aligned openings provided in flanges 28 and 30 of the saddle memher and carburetor. Nuts 32 secure the saddle member to the exhaust manifold as well as mount the carburetor on the saddle member.

A generally vertically disposed passageway 34 extends through the saddle member and opens at its lower end through a reduced diameter portion 36 to a portion 38 of the surface of the manifold 14, and at its upper end to the induction passage 18 of the carburetor 16. A second passageway 40 extends generally normal and transverse of the passageway 34 and the openings 42 of this passageway receive the enlarged ends of the manifolds 12 to thereby communicate the induction passage and the intake manifolds. Thus, the intake passage of the engine is formed by the induction passage 18 of the carburetor, the

passageways

34 and 40 of the saddle member and the intake manifolds.

. When the engine is in operation hot exhaust gases flowing through the exhaust manifold raise the temperature of the manifold and thereby heat the saddle member and the combustible mixture passing through the intake pas- 3,237,618 Patented Mar. 1, 1966 sage. Heating the combustible mixture improves the efficiency and operation of the engine as is well known. Any liquid fuel which is not vaporized in the carburetor during the operation of the engine or which drips from the carburetor when the engine is not in operation will collect in a sump formed by the portion 36 of the passageway 34 of the saddle member and the portion 38 of the exhaust manifold. When the engine is operating, the heat of the exhaust gas will vaporize the liquid fuel in this sump so that it will flow through the intake passage to the engine.

Thus, this invention provides an improved carburetor mounting means.

I claim:

1. In an internal combustion engine having an intake manifold adapted to convey a combustible mixture to the engine, an exhaust manifold adapted to convey exhaust gas from the engine and a carburetor, carburetor mounting means comprising: support means seating on said exhaust manifold and mounting said carburetor, said support means including passageway means communicating said carburetor and said intake manifold, a portion of said passageway means opening to the exterior of said exhaust manifold to heat the combustible mixture passing therethrough.

2. In an internal combustion engine having an intake manifold adapted to convey a combustible mixture to the engine, an exhaust manifold adapted to convey exhaust gas from the engine, a carburetor having an induction passage, carburetor mounting means comprising: a saddle member having a first opening therein receiving an end of said intake manifold and a second opening intersecting said first opening, means mounting said carburetor on said saddle member with the carburetor induction passage communicating with said second opening, said saddle member seating on said exhaust manifold to heat the combustible mixture passing therethrough.

3. In an internal combustion engine having a plurality of intake manifolds adapted to convey a combustible mixture to the engine, an exhaust manifold adapted to convey exhaust gas from the engine, and a carburetor having an induction passage, carburetor mounting means comprising: a saddle member having a plurality of openings each receiving an end of one of said intake manifolds, a passageway extending through said saddle member and intersecting said plurality of openings, means mounting said carburetor on said saddle member with the carburetor induction passage communicating with said passageway, said saddle member seating on said exhaust manifold and sealing one end of said passageway.

4. The combination comprising: an internal combustion engine having two intake manifolds adapted to convey a combustible mixture to the engine, an exhaust manifold adapted to convey exhaust gas from the engine, a carburetor having an induction passage, a saddle member having a first bore receiving the ends of said intake manifolds and providing a passage therebetween, a second bore intersecting said first bore, means mounting said carburetor on said saddle member with the carburetor induction passage communicating with one end of said second bore, and means mounting said saddle member on said exhaust manifold and sealing the end of said second bore opposite said one end.

5. In an internal combustion engine having an intake manifold adapted to convey a combustible mixture to the engine, an exhaust manifold adapted to collect exhaust gas from the engine, and a carburetor having an induction passage, a member having a port-ion there-of adapted to seat on said exhaust manifold, first means connecting the induction passage of said car-buretor with said rneinber, second means connecting said intake manifold to said member and communicating with said first means, and a passageway Within said member communicating with said first and second means and opening to a portion of the surface of said exhaust manifold, said passageway and said portion of the surface of said manifold providing a sump to collect unatomized fuel, the heat from said exhaust manifold atomizing the fuel collected in said sump.

References Cited by the Examiner UNITED STATES PATENTS 10/1941 Morris 123122 5 KARL I. ALBRECHT, Primary Examiner.

Claims

1. IN AN INTERNAL COMBUSTION ENGINE HAVING AN INTAKE MANIFOLD ADAPTED TO CONVEY A COMBUSTILE MIXTURE TO THE ENGINE, AN EXHAUST MANIFOLD ADAPTED TO CONVEY EXHAUST GAS FROM THE ENGINE AND A CARBURETOR, CARBURETOR MOUNTING MEANS COMPRISING: SUPPORT MEANS SEATING ON SAID EXHAUST MANIFOLD AND MOUNTING SAID CARBURETOR, SAID SUPPORT MEANS INCLUDING PASSAGEWAY MEANS COMMUNICATING SAID CARBURETOR AND SAID INTAKE MANIFOLD, A PORTION OF SAID PASSAGEWAY MEANS OPENING TO THE EXTERIOR OF SAID EXHAUST MANIFOLD TO HEAT THE COMBUSTILE MIXTURE PASSING THERETHROUGH.