Fluid heating-cooling cylinder device
AssigneePhiltech Inc.
InventorsYuji Furumura, Naomi Mura, Shinji Nishihara, Noriyoshi Shimizu
Life of this patent
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Abstract
Provided is a fluid heating device that is small in size and capable of heating a large flow of gas or liquid at a low cost. A flow path in which no backwater is produced is provided by providing grooved flow paths of a fluid are provided over an outer side surface of a metallic circular cylinder such that a fluid passing through a narrowed one of the flow paths impinges perpendicularly against a wall of the next flow path. This allows instantaneous heat exchange within a small space, and makes manufacturing of such a structure simple.
Claims20
A fluid heating device, comprising:
- an inner cylinder having a plurality of annular grooves provided around an outer side surface of the inner cylinder and a plurality of sets of connecting grooves provided on the outer side surface, each set of connecting grooves connecting two of the annular grooves, circumferential positions of connecting grooves in two of the sets of connecting grooves provided on respective sides of one of the annular grooves are displaced from each other;
- and
- a cylinder containing the inner cylinder in close contact with each other,
- wherein one of a gas and a liquid flows through a flow path defined by an inner wall of the cylinder and the outer side surface of the inner cylinder, and whereby heat is exchanged between the one of the gas and the liquid and the flow path;
- wherein the inner cylinder defines a central axis;
- and
- wherein the inner cylinder further has (i) an inlet side at one end of the central axis, (ii) an outlet side at another end of the central axis, and (iii) a heater cavity which extends along the central axis to a heater opening to receive a heater, the heater opening being disposed on the inlet side of the inner cylinder and being coaxial with the central axis.
A fluid heating device, comprising:
- an inner cylinder having a plurality of annular grooves provided around an outer side surface of the inner cylinder and a plurality of sets of connecting grooves provided on the outer side surface, each set of connecting grooves connecting two of the annular grooves, circumferential positions of connecting grooves in two of the sets of connecting grooves provided on respective sides of one of the annular grooves are displaced from each other;
- and
- a cylinder containing the inner cylinder in close contact with each other,
- wherein a fluid flows through a flow path defined by an inner wall of the cylinder and the outer side surface of the inner cylinder, and whereby heat is exchanged between the fluid and the flow path;
- and
- wherein the inner cylinder defines (i) an inlet end, (ii) an outlet end, (iii) a central axis which extends between the inlet end and the outlet end, and (iv) a heater cavity which extends along the central axis to a heater opening at the inlet end to receive a heater, the heater opening defined by the inner cylinder being coaxial with the central axis.
Dependencies are inferred from the claim text.