Pulsation-dampening fuel trim strategy for air/fuel ratio...

Details Pulsation-dampening fuel trim strategy for air/fuel ratio... Pulsation-dampening fuel trim strategy for air/fuel ratio...

2006-04-20

2009-10-27

Cronin, Stephen K (Department: 3747)

Internal-combustion engines

Charge forming device

Gaseous fuel and air mixer

C123S446000

Reexamination Certificate

active

07607421

ABSTRACT:
A trim system for controlling an equivalence ratio in a fuel system is provided. The fuel system includes an air duct, a mixer disposed in the air duct, and a converter. The mixer has a reference pressure port and an air valve vacuum port. The converter has an outlet port and a bias port. The trim system comprises the mixer, the converter, a balance line, one or more orifices, and first and second trim valves. The outlet port is operably coupled to the mixer to deliver vaporized fuel to the mixer. The balance line is operably coupled to the reference pressure port, the bias port, and the air valve vacuum port. The balance line provides pressure to the bias port. The first and second trim valves are disposed in the balance line and operable such that the equivalence ratio in the fuel system is controlled.

REFERENCES:
patent: 4489700 (1984-12-01), van der Weide
patent: 4864991 (1989-09-01), Snyder et al.
patent: 4886034 (1989-12-01), Lambert
patent: 5337722 (1994-08-01), Kurihara et al.
patent: 5755203 (1998-05-01), Mastumoto
patent: 5762102 (1998-06-01), Rimboym
patent: 5899070 (1999-05-01), Droessler et al.
patent: 7007636 (2006-03-01), Schlesser et al.

Affiliated with

Also associated with

Rating

Pulsation-dampening fuel trim strategy for air/fuel ratio... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pulsation-dampening fuel trim strategy for air/fuel ratio..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pulsation-dampening fuel trim strategy for air/fuel ratio... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4124180