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US 10,094,255 B2Granted
Blow-by heater
AssigneeNifco Inc.
InventorsTsuyoshi Okazaki, Hiroyuki Nakaya
Life of this patent
Estimating the term…
Abstract
A blow-by heater includes a metal pipe for flowing a blow-by gas therethrough. The metal pipe includes a flat portion on one side along an axis direction and a curved portion on a side opposite to the flat portion and is formed of a metal plate with a joining portion abutting against each other at edges of the metal plate at the curved portion. The blow-by gas heater further includes a resin molded over the metal pipe, and a heating source provided inside resin and directly contacting the flat portion.
Claims4
A blow-by heater, comprising:
- a metal pipe for flowing a blow-by gas therethrough in a flow direction, the metal pipe including
- a flat portion on one side along an axis direction of the metal pipe, and
- a curved portion on a side opposite to the flat portion and including
- two curved members extending from two edges of the flat portion opposite to each other, each curved member including an inclined portion inclined toward a downstream side in respect to the flat portion so that a cross-sectional area of the metal pipe decreases toward the downstream side,
- a joining portion in which the two curved members abut against each other, and
- abutting portions on outer peripheral faces of the two curved members, respectively, and sandwiching the joining portion;
- a resin covering the metal pipe;
- and
- a heating source provided inside the resin and directly contacting the flat portion,
- wherein the abutting portions are not covered with the resin and are spaced apart from each other in a direction perpendicular to the axis direction.
7 more elements
Dependencies are inferred from the claim text.