A lot of automatically controlled climate control systems on cars since about 1967 use "vacuum motors" to operate the dampers in the air boxes. These are usually just a bellows and light return spring that are controlled by the presence or absence of a vacuum.
I removed the airbox unit and replaced these actuators in my parent's 1972 Cadillac around 1990. It was a very successful result; however, I had to virtually dismantle and reassemble the entire Cadillac dash over 3 days to replace these "vacuum motor" components. I think they put this airbox sub-assembly on the line first and build the car around it.
I did a similar task in 1979 when I installed factory AC into the dash of my parents 1975 GMC Motor Home. I used a car AC compressor, dryer, muffler, expansion valve, condensors, and a new GMC airbox with vacuum motors, heater core, and evaporator installed. This also required a large amount of dismantling and reassembling. this also required finding a set of OEM accessory brackets that would permit mounting all the accessories including the compressor onto the 455 Olds engine without interference. The whole job took me 2 weeks of my summer break from college before I started my summer job. My dad then added the refrigeration oil and charged the 4.0# Freon 12 system. It worked very well, even visiting in the 107+ degree heat of Oklahoma, Kansas, and New Mexico.
These "vcuum motor" actuators are not unique to GM, because I had a similar issue with my 1987 Ford Taurus SW. I never got to dismantling the dash and replacing the defective components; so, this car had the heat and AC come out at the floor (no defroster action, and poor AC circulation through the car.). I knew how to pick my way through that repair, but never got the 2-3 days dedicated to that fix from when it broke in 1995 prior to selling it in 1998.
Last year at Hannover Fair, lots of people were talking about Industry 4.0. This is a concept that seems to have a different name in every region. I’ve been referring to it as the Industrial Internet of Things (IIoT), not to be confused with the plain old Internet of Things (IoT). Others refer to it as the Connected Industry, the smart factory concept, M2M, data extraction, and so on.
Some of the biggest self-assembled building blocks and structures made from engineered DNA have been developed by researchers at Harvard's Wyss Institute. The largest, a hexagonal prism, is one-tenth the size of an average bacterium.
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