Resources Contact Us Home
Diagnosis device for exhaust gas recycling device of internal combustion engine

Image Number 13 for United States Patent #4870942.

A diagnosis device for an exhaust gas recycling device diagnoses whether or not an exhaust gas recycling device is operating normally; the temperature of an exhaust gas recycling passage is detected by a temperature detection means, a decision is made by an exhaust gas recycling operating region detection means whether or not the operating region is such as to carry out exhaust gas recycling, when a decision is made that the operating region is such as to carry out exhaust gas recycling a counter is incremented and when otherwise is decremented, and a decision that the exhaust gas recycling is not being carried out normally, that is that the exhaust gas recycling device has failed, is made when the count value of this counter is at least a certain value and the temperature of the exhaust gas recycling passage is not more than a certain value.

  Recently Added Patents
Pose-variant face recognition using multiscale local descriptors
Method and system for network configuration for virtual machines
Method and system for prioritizing points of interest for display in a map using category score
Measuring device and measuring method that use pulsed electromagnetic wave
Lubricant composition and antioxident composition
Vending machine
Combined high and low frequency stimulation therapy
  Randomly Featured Patents
Method for treating rejection of organ or skin grafts with 6-aryl pyrimidine compounds
Single-event effect tolerant latch circuit and flip-flop circuit
Sputter deposition of cermet resistor films with low temperature coefficient of resistance
Facsimile machine with voice answer unit
Depth gauge
Benzothiazole-and benzoxazole-4, 7-dione derivatives and their use as dcd25 phosphatase inhibitors
Low-cost circuit board materials and processes for area array electrical interconnections over a large area between a device and the circuit board
Recovering method of support and useful ingredient from image forming material
Disposable tubing set and organizer frame for holding flexible tubing
Authority and integrity check in systems lacking a public key