Internal-combustion engines – Charge forming device – Exhaust gas used with the combustible mixture
Patent
1981-03-17
1984-03-06
Burns, Wendell E.
Internal-combustion engines
Charge forming device
Exhaust gas used with the combustible mixture
F02M 2506
Patent
active
044347766
ABSTRACT:
An EGR system has two vacuum modulation valves, one responsive to venturi vacuum and "EGR" pressure (which prevails just upstream of the EGR flow control valve) and the other responsive to venturi vacuum and induction vacuum. The first valve predominately dilutes the vacuum operating the EGR flow control valve during heavy load operation while the second valve predominately dilutes said vacuum during light load and/or high speed operation. With this combination, excessive EGR is avoided during said light load and high speed operations, respectively.
REFERENCES:
patent: 4069797 (1978-01-01), Nohira et al.
patent: 4092960 (1978-06-01), Nohira et al.
patent: 4130093 (1978-12-01), Aoyama
patent: 4148286 (1979-04-01), Kohama et al.
patent: 4180033 (1979-12-01), Aoyama
patent: 4180035 (1979-12-01), Saiki et al.
patent: 4248186 (1981-02-01), Yamada
patent: 4282847 (1981-08-01), Ikuta et al.
Kondo Takehisa
Shirase Haruya
Burns Wendell E.
Nissan Motor Co,. Ltd.
LandOfFree
EGR Control system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with EGR Control system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and EGR Control system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-737023