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A fuel vapor recovery system for a direct injection internal combustion engine operating in both stratified and homogenous modes includes using fuel vapor with air assisted injectors. A compressor compresses a controlled mixture of fresh air and fuel vapor which is then delivered to the air supply o

A fuel vapor recovery system for a direct injection internal combustion engine operating in both stratified and homogenous modes includes using fuel vapor with air assisted injectors. A compressor compresses a controlled mixture of fresh air and fuel vapor which is then delivered to the air supply of air assisted injectors, allowing fuel vapors to be purged from the vapor recovery system during all engine operating modes.

대표청구항 ▼

[ We claim:] [1.] A fuel vapor recovery system for maintaining charge stratification of a direct injection internal combustion engine comprising:a plurality of air assisted injectors for injecting fuel and air into the engine;a compressor, for compressing a mixture of fuel vapor and air, coupled to

[ We claim:] [1.] A fuel vapor recovery system for maintaining charge stratification of a direct injection internal combustion engine comprising:a plurality of air assisted injectors for injecting fuel and air into the engine;a compressor, for compressing a mixture of fuel vapor and air, coupled to an air supply of each of the plurality of air assisted injectors;a control valve for controlling a flow of fuel vapor and a flow of air in said mixture responsive to a desired vapor purge rate; anda fuel vapor source for supplying fuel vapor to said control valve.