Automatic temperature and humidity regulation – Thermostatic – Expanding fluid
Patent
1975-01-20
1977-01-04
Wayner, William E.
Automatic temperature and humidity regulation
Thermostatic
Expanding fluid
137595, 236 86, 251DIG1, G05D 2312
Patent
active
040008495
ABSTRACT:
A temperature responsive valve for controlling communication between multiple ports is disclosed in three embodiments. In a first embodiment first and second adjacent chambers in a valve body are separated by a valve and second and third adjacent chambers in the body are separated by a second valve. The valves include a common stem carrying movable valve elements for simultaneously opening and closing the same. A sliding seal between the second and third chambers isolates these chambers for all positions of the valve stem. In a second embodiment there is also a fifth chamber communicating with a fifth port, a third valve is between the fourth and fifth ports, and a third valve element on the stem communicates the fourth port with the fifth port as the third port is closed relative to the fourth port. In a third embodiment first and second adjacent chambers in a valve body are separated by a valve seat which is selectively closed by a thermally actuated valve stem carrying movable valve elements. In all embodiments, the stem is moved by a fusion type thermal element so that the valve is transferred from a first position to a second position at a predetermined temperature. The valve is particularly useful for controlling communication between vacuum actuated devices of an internal combustion engine.
REFERENCES:
patent: 2700983 (1955-02-01), Bryant
patent: 3318333 (1967-05-01), McCollum et al.
patent: 3738571 (1973-06-01), Elmer
Steele, Jr. Everett T.
Wagner Joseph P.
O'Brien Anthony A.
Robertshaw Controls Company
Tapolcai, Jr. William E.
Wayner William E.
LandOfFree
Temperature responsive valve does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Temperature responsive valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Temperature responsive valve will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-249298