Patent ID: 9200600
Filing Date: 2015-12-01
Classification: F02B,F02D,F02M

Abstract:
1. A method for controlling a fuel system of a marine propulsion engine, comprising the steps of: providing a flow control device which is connected in fluid communication with a fuel reservoir of said fuel system; measuring an operating speed of said marine propulsion engine; determining a desired venting command for venting gaseous fuel from said fuel reservoir to a point upstream from a throttle valve disposed within a throttle body, wherein said desired venting command is determined as a function of said measured operating speed; selecting a plurality of intermediate venting commands as a function of said desired venting command and of a current venting command associated with a previous operating speed of said marine propulsion engine, wherein said plurality of intermediate venting commands comprises a series of venting commands that sequentially increase from said current venting command to said desired venting command, and wherein each intermediate venting command in said plurality of intermediate venting commands is determined based on a remaining difference between an immediately preceding intermediate venting command and said desired venting command; and actuating said flow control device according to said selected plurality of intermediate venting commands.