Direct expansion jacket for horizontal dough mixers
AssigneeAMF Incorporated
InventorSamuel O. Seiling
Life of this patent
Estimating the term…
Abstract
Apparatus for cooling dough in a mixer comprising a multi-section direct expansion jacket provided on the main sheet and both end walls of the mixing bowl, the jacket providing a flow path for liquid coolant progressively increasing in cross-sectional area from the inlet to the outlet, and having flow control and heat transfer maximizing means so that the velocity of coolant flow through and a minimum pressure drop across the flow path remain substantially constant and the liquid coolant is always maintained in contact with the heat transfer surfaces.
Claims8
A multi-section direct expansion jacket provided on the main sheet and end walls of the mixing bowl of a dough mixer having an agitator in said bowl mounted for movement on a shaft extending through said end walls, comprising
- an inlet jacket portion having an outer wall and wall means connected between said outer wall and one of said end walls defining a spiral flow path portion having inlet means at one end adapted to receive a flow of liquid coolant and an outlet at its other end,
- said spiral flow path portion increasing in cross-sectional area from said inlet means to said outlet,
- a second jacket portion having an outer wall and wall means connected between said outer wall and said main bowl sheet defining a repeatedly retroverted flow path portion with an inlet at one end in flow communication with the outlet of said spiral flow path portion and an outlet at its other end,
- said retroverted flow path portion comprising a plurality of runs flow connected in series and extending transversely of said shaft of said agitator,
- each of said runs having a greater cross-sectional area than the adjacent run nearer the inlet, and
- an outlet jacket portion having an outer wall and wall means connected between said outer wall and the other of said end walls defining an arcuate flow path portion having an inlet at one end in flow communication with the outlet of said retroverted flow path portion and a discharge manifold at its other end, and
- said arcuate flow path portion progressively increasing in cross-sectional area from said inlet thereof to said discharge manifold.
Dependencies are inferred from the claim text.