B - Operations – Transporting – 41 – F
Patent
B - Operations, Transporting
41
F
101/105, 299/22,
B41F 7/30 (2006.01) B41F 33/00 (2006.01) B41L 25/06 (2006.01)
Patent
CA 1313388
Abstract Spray Dampener Valve Assembly and Control System A sprayer assembly for a printing press dampener roll comprises a plurality of sprayers, each including a nozzle section and a valve section. The nozzle section includes a valve housing having a valve element at its front end defining a spray outlet, and a valve seat inserted into its rear end. The valve section includes a plunger reciprocably mounted in a solenoid, and a valve stem mounted frictionally in a front end of the plunger for engaging the valve seat. The valve stem can be replaced by removing the valve section and pulling the stem out of the plunger. The sprayers are controlled to emit fluid in pulses. During low press speeds, fluid output is adjusted by varying the interval between pulses. During high speed operation, fluid output is adjusted by varying the pulse time. Furthermore, the outermost nozzles of a spray bar are operated by dedicated control channels to permit better spray patterns.
587942
Hansson Birger
Hultberg Sten
Hansson Birger
Hultberg Sten
Jimek A.b.
Ridout & Maybee Llp
LandOfFree
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