Device for regulating the fuel-air ratio in internal combustion

Internal-combustion engines – Charge forming device – Having fluidic logic control means

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

123489, 73 23, F02B 308

Patent

active

043938418

ABSTRACT:
A device is proposed for regulating the fuel-air ratio in the operating mixture of an internal combustion engine and for monitoring the operational readiness of a .lambda. sensor controlling the regulating device and functioning by the principle of ion conduction in solid electrolytes. The .lambda. sensor has an adjustable, constant reference voltage switched opposite to it. The reference voltage approximately equals the average sensor output voltage. The level of the resultant voltage, which is established with the aid of the resultant current and has values located symmetrically with respect to the reference voltage, is monitored by comparator devices. The output signal of the comparator devices is logically processed and furnishes a signal as to the operational readiness of the sensor. In order to generate the reference voltage, a voltage divider branch having high resistance is disposed parallel to a voltage divider branch of relatively low resistance; the latter voltage divider branch further serves to establish the threshold values of the comparator devices. Because it is independent of the current draw of the comparator devices, the desired reference voltage can be adhered to very precisely, and thus the desired regulating point at which closed-loop control or regulation begins of the regulating device can also be adhered to very precisely.

REFERENCES:
patent: 3948228 (1976-04-01), Luchaco
patent: 4140085 (1979-02-01), Rabus et al.
patent: 4167163 (1979-09-01), Moder
patent: 4172432 (1979-10-01), Wessel et al.
patent: 4208993 (1980-06-01), Peter
patent: 4235096 (1980-11-01), Yasuda et al.
patent: 4258563 (1981-03-01), Yasuda et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Device for regulating the fuel-air ratio in internal combustion does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Device for regulating the fuel-air ratio in internal combustion , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for regulating the fuel-air ratio in internal combustion will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-746854

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.