Thermostats explained
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('''1''') The thermostat opens '''''as required''''' in response to changes in coolant temperature to keep the engine's temperature within the desired operating range. | ('''1''') The thermostat opens '''''as required''''' in response to changes in coolant temperature to keep the engine's temperature within the desired operating range. | ||
− | This clearly suggests that the thermostat does, indeed, control the temperature by the | + | This clearly suggests that the thermostat does, indeed, control the temperature by the ''amount'' it is open, '''not''' that the temp is controlled by an "OFF and ON" cycle. |
− | ('''2''') Previously, it was suggested that a "true" industrial valve would behave differently than an automotive thermostat, that an automotive thermostat could | + | ('''2''') Previously, it was suggested that a "true" industrial valve would behave differently than an automotive thermostat, that an automotive thermostat could '''only''' control the coolant temp in ''one direction'' and that an industrial valve would be in a "centered" position at "normal" temps so it can both increase AND decrease the coolant temp. |
− | It would certainly appear that the automotive thermostat does | + | It would certainly appear that the automotive thermostat does '''just exactly that'''- it's not FULLY open until much past it's rated temp- so is at a less-than-wide-open state when at its rating, and is able to respond either up OR down, as needed. |
− | It can thus open MORE to cool faster, or close to a less-than-rated opening if too cool- without closing. And behaves- in effect- the | + | It can thus open MORE to cool faster, or close to a less-than-rated opening if too cool- without closing. And behaves- in effect- the '''exact''' way as claimed for an "industrial flow/temp control", that is, it can control temp in BOTH directions. |
− | Hopefully, this will clarify any misunderstanding of how a thermostat | + | Hopefully, this will clarify any misunderstanding of how a thermostat '''really''' works. |