Pressure balanced flow regulator for gaseous fuel engine
First Claim
1. A gaseous fuel and air supply system for an internal combustion engine, said system comprising an air-fuel mixing chamber, an air supply duct communicating with said mixing chamber and with the atmosphere and including sensing means for sensing pressure representative of the flow of air through said air supply duct, flow control means adapted to communicate with a source of pressurized gas, being operable between open and closed positions, and being biased toward said closed position, a fuel supply duct extending between said flow control means and said mixing chamber and including sensing means for sensing pressure representative of the flow of fuel through said fuel supply duct, and means communicating with said sensing means in said air supply duct and with said sensing means in said fuel supply duct for controlling operation of said flow control means between said open and closed positions in response to pressure sensed by said sensing means.
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Accused Products
Abstract
Disclosed herein is a gaseous fuel and air supply system for an internal combustion engine, which system comprises an air-fuel mixing chamber, an air supply duct communicating with the mixing chamber and with the atmosphere and including a sensing tap, a flow control valve adapted to communicate with a source of pressurized gas, being operable between open and closed positions, and being biased toward the closed position, a fuel supply duct extending between the flow control valve and the mixing chamber and including a sensing tap, and an actuator communicating with the sensing tap in the air supply duct and with the sensing tap in the fuel supply duct for controlling operation of the flow control valve between the open and closed positions.
47 Citations
10 Claims
- 1. A gaseous fuel and air supply system for an internal combustion engine, said system comprising an air-fuel mixing chamber, an air supply duct communicating with said mixing chamber and with the atmosphere and including sensing means for sensing pressure representative of the flow of air through said air supply duct, flow control means adapted to communicate with a source of pressurized gas, being operable between open and closed positions, and being biased toward said closed position, a fuel supply duct extending between said flow control means and said mixing chamber and including sensing means for sensing pressure representative of the flow of fuel through said fuel supply duct, and means communicating with said sensing means in said air supply duct and with said sensing means in said fuel supply duct for controlling operation of said flow control means between said open and closed positions in response to pressure sensed by said sensing means.
Specification