Monitoring arrangement for compartment air contamination

a monitoring arrangement and air pollution technology, applied in the direction of liquid degasification, auxillary pretreatment, separation processes, etc., can solve the problems of insufficient elements, insufficient ventilation circuits, and more contamination entering from outside, so as to improve the air quality monitoring system

Active Publication Date: 2006-01-31
DEERE & CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The technical effect of this patented improvement is that it provides better air quality monitoring systems with greater accuracy than existing methods.

Problems solved by technology

The technical problem addressed in this patent is how to monitor the quality of filtered air inside a cabin used in heating and ventilation systems without requiring expensive equipment and maintaining constant levels of cleanliness. Existing methods have limitations such as insufficient accuracy at detecting small particles, excessive wear and tear on components, and lack of reliability over time.

Method used

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  • Monitoring arrangement for compartment air contamination
  • Monitoring arrangement for compartment air contamination
  • Monitoring arrangement for compartment air contamination

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Embodiment Construction

[0024]Referring now to FIG. 1, there is shown a vehicle cab 10, which is indicated by a surrounding line. The cab 10 is that of an agricultural tractor, not shown in any further detail, that is coupled to a field sprayer for the application of a liquid or any other finely dispersed plant protective material. An air channel or duct 12, in which a blower 14 is arranged, extends within the cab 10. The blower 14 draws surrounding air E through a fresh air inlet 16 and a fresh air filter element 18. The surrounding air E may be loaded, among other items, with dust particles, toxic particles or particles harmful to health and odor carrying materials which are filtered out more or less completely by the fresh air filter element 18. The clean air A is conducted through an air outlet 20 into the interior of the cab. A slight overpressure of air is generated in the cab 10 by the blower 14 that forces air to the outside through unsealed areas of the cab or openings that are purposefully provided.

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Abstract

An air quality monitoring arrangement is associated with an enclosed cab of an agricultural tractor used for towing or carrying spraying implements for treating crop with substances which might be toxic or otherwise harmful to people. A signal from a contaminant sensor is sent to a control arrangement which compares the actual sensed contamination of the air within the cab over time with a value from a performance map representing the performance expected from normal performance of the air circulating system of the cab. When the sensed contamination is higher than that of the performance map the operator is warned of a malfunction. The blower of the air circulating system may have its speed increased so as to pressurize the cab so as to exclude the entry of contaminated air through seals and other small openings of the cab. The air filters used are coded and recognized by the control system which keeps track of the service time of the filters and warns an operator when the service time exceeds that of a stored time value related to the particular filter.

Description

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Claims

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Application Information

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Owner DEERE & CO
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