Apparatus for generating pulsed impingement jets in freezers
AssigneeLinde Aktiengesellschaft
InventorMichael D. Newman
Life of this patent
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Abstract
An apparatus provides pulsed impingement jets to a sub-chamber within an impingement hood of a freezer, and includes a blower having an inlet and an outlet at an interior of the freezer; a duct having a first end in fluid communication with the outlet and a second end opening into the sub-chamber; and a flow valve disposed in the duct proximate the second end opening, the flow valve movable in repetitive open and closed positions for providing repetitive, discrete pulses of the impingement jets from the second end opening of the duct into the sub-chamber.
Claims9
An apparatus for providing pulsing, to impingement jets of a cryogen gas that are discharged by a main blower through impingement holes in an impingement plate from and out of a sub-chamber within an impingement hood of a freezer that contains said cryogen gas for freezing a food product, comprising:
- a pressure blower having an inlet and an outlet at an interior of the freezer and external to the impingement hood;
- a distribution pipe having a first end in fluid communication with the outlet of the pressure blower, and a second end extending to an opening in the impingement hood for fluid communication with the sub-chamber;
- and
- a flow valve disposed in the distribution pipe proximate the opening, the flow valve movable in repetitive open and closed positions for providing repetitive, discrete pulsing, to the impingement jets, from the opening at the second end of the distribution pipe into the sub-chamber.
Dependencies are inferred from the claim text.