Evaporative fuel-purging control system for internal combustion

Details Evaporative fuel-purging control system for internal combustion Evaporative fuel-purging control system for internal combustion

1993-07-07

1994-07-19

Miller, Carl S.

Internal-combustion engines

Charge forming device

Having fuel vapor recovery and storage system

123494, F02M 3302

Patent

active

053299094

ABSTRACT:
An evaporative fuel-purging control system for an internal combustion engine includes a mass flowmeter arranged across a purging passage of the engine for measuring a flow rate of a mixture of evaporative fuel and air being purged. A desired flow rate of the mixture is set according to operating conditions of the engine. The desired flow rate of the mixture is compared with a measured flow rate of the mixture obtained by the mass flowmeter, and the opening of a purge control valve arranged across the purging passage is controlled based on results of the comparison.

REFERENCES:
patent: 4493303 (1985-01-01), Thompson
patent: 4537172 (1985-08-01), Kanehara
patent: 4862856 (1989-09-01), Yokoe
patent: 4867126 (1989-09-01), Yonekawa
patent: 4949695 (1990-08-01), Uranishi
patent: 4949860 (1990-07-01), Chujo
patent: 4961412 (1990-10-01), Foruyama
patent: 4962749 (1990-10-01), Uranashi
patent: 5067461 (1991-11-01), Joachim
patent: 5085197 (1992-02-01), Mader

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