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Title: Pressurized fuel carburetor for an internal combustion engine

Abstract

A pressurized fuel carburetor is described for an internal combustion engine comprising: a main housing provided with an air intake passage equipped with a normally closed throttle valve connected to an accelerator and which intake passage is unobstructed by other movable air flow responsive means; engine manifold pressure sensing means located entirely exteriorly of the intake passage but in communication therewith downstream from the throttle valve means; a single normally fully closed fuel metering valve in communication with the air intake passage downstream from the throttle valve and mechanically connected to a source of pressurized fuel and to the accelerator and to the pressure sensing means. The means is responsive to subatmospheric pressure in the engine fuel intake manifold to open the single fuel valve and maintain a continuous flow of pressurized fuel into the air intake passage via the single fuel metering valve so long as the pressure sensing means senses subatmospheric pressure in the intake manifold. It is also responsive to a change in the intake manifold pressure to adjust the single fuel metering valve automatically to vary fuel flow into the intake passage to accommodate changing engine power output demand and to fully close the single fuelmore » metering valve when the intake manifold pressure rises substantially to atmospheric pressure.« less

Inventors:
Publication Date:
OSTI Identifier:
6564457
Patent Number(s):
US 4656987
Assignee:
NOV; NOV-87-059038; EDB-87-103013
Resource Type:
Patent
Resource Relation:
Patent File Date: Filed date 6 Aug 1984
Country of Publication:
United States
Language:
English
Subject:
33 ADVANCED PROPULSION SYSTEMS; INTERNAL COMBUSTION ENGINES; CARBURETORS; AIR FLOW; ATMOSPHERIC PRESSURE; AUTOMOTIVE FUELS; FUEL GAGES; INTAKE STRUCTURES; PRESSURE GAGES; PRESSURE MEASUREMENT; PRESSURIZING; SPEED REGULATORS; VALVES; CONTROL EQUIPMENT; ENGINES; EQUIPMENT; FLOW REGULATORS; FLUID FLOW; FUEL SYSTEMS; FUELS; GAS FLOW; HEAT ENGINES; MEASURING INSTRUMENTS; MECHANICAL STRUCTURES; 330100* - Internal Combustion Engines

Citation Formats

Arpaia, M A. Pressurized fuel carburetor for an internal combustion engine. United States: N. p., 1987. Web.
Arpaia, M A. Pressurized fuel carburetor for an internal combustion engine. United States.
Arpaia, M A. 1987. "Pressurized fuel carburetor for an internal combustion engine". United States.
@article{osti_6564457,
title = {Pressurized fuel carburetor for an internal combustion engine},
author = {Arpaia, M A},
abstractNote = {A pressurized fuel carburetor is described for an internal combustion engine comprising: a main housing provided with an air intake passage equipped with a normally closed throttle valve connected to an accelerator and which intake passage is unobstructed by other movable air flow responsive means; engine manifold pressure sensing means located entirely exteriorly of the intake passage but in communication therewith downstream from the throttle valve means; a single normally fully closed fuel metering valve in communication with the air intake passage downstream from the throttle valve and mechanically connected to a source of pressurized fuel and to the accelerator and to the pressure sensing means. The means is responsive to subatmospheric pressure in the engine fuel intake manifold to open the single fuel valve and maintain a continuous flow of pressurized fuel into the air intake passage via the single fuel metering valve so long as the pressure sensing means senses subatmospheric pressure in the intake manifold. It is also responsive to a change in the intake manifold pressure to adjust the single fuel metering valve automatically to vary fuel flow into the intake passage to accommodate changing engine power output demand and to fully close the single fuel metering valve when the intake manifold pressure rises substantially to atmospheric pressure.},
doi = {},
url = {https://www.osti.gov/biblio/6564457}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1987},
month = {4}
}