# US 5,699,777 A · Fuel supplying system for vertical engine with multiple cylinders

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- Number: US 5,699,777 A
- Document ID: US5699777A
- Status: Granted
- Kind: A
- Application number: 08/723,840
- Filed: 1996-09-30
- Granted: 1997-12-23
- Earliest claimed: 1995-11-30
- Assignees: Suzuki Kabushiki Kaisha
- Inventors: Naoki Kawasaki; Mitsuhiko Ohta; Toshiaki Ikeya
- Web page: https://patentgrep.com/patent/US5699777A

## CPC

- F02M 37/18: characterised by provision of main and auxiliary pumps
- F02M 13/02: Separate carburettors
- F02B 75/007: {having vertical crankshafts}
- F02M: SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02B: INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL (gas-turbine plants F02C; hot-gas or combustion-product positive-displacement engine plants F02G)

## Abstract

A fuel supplying system for a vertical engine provided with multiple cylinders arranged in a vertical direction, respectively, in an installed state of the engine and a crankshaft disposed vertically therein, comprising a plurality of fuel supplying means disposed for the cylinders, respectively, said fuel supplying means being divided into plurality of groups. A plurality of fuel pumps each disposed for each of said groups of the fuel supplying means, said fuel pumps being arranged below the fuel supplying means at a lowest position of the corresponding each group of the fuel supplying means. Further, a plurality of fuel diverging means operatively connecting the fuel pumps to the each group of the fuel supplying means, respectively, said fuel diverging means being connected to each other through connecting means.

## Claims

### Claim 1

A fuel supplying system for a vertical engine provided with multiple cylinders arranged in a vertical direction, respectively, in an installed state of the engine and a crankshaft disposed vertically therein, comprising:
a plurality of fuel supplying means disposed for the cylinders, respectively, said fuel supplying means being divided into plurality of groups;
a plurality of fuel pumps each disposed for each of said groups of the fuel supplying means, said fuel pumps being arranged below the fuel supplying means at a lowest position of the corresponding each group of the fuel supplying means; and
a plurality of fuel diverging means operatively connecting the fuel pumps to the each group of the fuel supplying means, respectively, said fuel diverging means being connected to each other through connecting means.

### Claim 2 (depends on 1)

A fuel supplying system for a vertical engine with multiple cylinders according to claim 1, wherein said connecting means comprises a base portion connecting pipe which connects base portions of the diverging means near the fuel pumps and a diverging portion connecting pipe which connects diverging portions of said fuel diverging means.

### Claim 3 (depends on 1)

A fuel supplying system for a vertical engine with multiple cylinders according to claim 1, wherein said fuel supplying means are carburetors.

### Claim 4 (depends on 1)

A fuel supplying system for a vertical engine with multiple cylinders according to claim 1, wherein said fuel diverging means are manifold-type fuel diverging pipes.