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US 11,559,980 B2Granted
Dryer
AssigneeBobst Bielefeld GmbH
InventorRene Heinze
Life of this patent
Estimating the term…
Abstract
The present invention relates to a dryer for treating a moving printing web in a rotary printing press with gas, having a nozzle body. The dryer according to the invention is characterized in that the nozzle body has at least one opening for the exit of heated gas and has at least one opening for recirculating the cooled gas.
Claims20
A dryer for a printing press, the dryer comprising:
- a nozzle body, wherein the nozzle body has a cavity to receive heated gas and at least two nozzles with outlet openings extending from the cavity over only part of a width of a printing web for an exit of heated gas from the nozzle body in a first direction;
- at least one inlet opening in the nozzle body between the at least two nozzles for the heated gas that exited the nozzle body to return as return gas into the nozzle body and flow in a path outside the cavity;
- at least one transverse opening for the return gas to flow inside the nozzle body past at least one nozzle of the at least two nozzles in a second direction transverse to the first direction;
- and
- at least one recirculating opening for recirculating the return gas from the at least one transverse opening through the nozzle body along a path inside the nozzle body and outside the cavity to a suction opening of the nozzle body.
2 more elements
A dryer for a printing press, the dryer comprising:
- a cavity to receive gas;
- a nozzle outside the cavity and in fluid communication with the cavity to exhaust gas from the cavity in a first direction;
- an inlet outside the cavity to draw the exhausted gas from the nozzle in a second direction opposite to the first direction;
- and
- a recirculating inlet on an opposite side of the nozzle from the inlet to draw the gas from the inlet past the nozzle in a third direction transverse to the second direction.
2 more elements
A dryer for a printing press, the dryer comprising:
- an inner wall forming a cavity;
- an outer wall surrounding the inner wall and forming a channel between the inner wall and the outer wall;
- a nozzle in the channel and in fluid communication with the cavity to exhaust gas from the cavity in a first direction;
- an inlet in the channel to draw the exhausted gas from the nozzle into the channel in a second direction opposite to the first direction;
- and
- a suction outlet to draw air from the inlet in a third direction.
3 more elements
Dependencies are inferred from the claim text.