Refrigerant evaporator with condensed water drain structure
AssigneeDenso Corporation
InventorsIsao Kuroyanagi, Masamichi Makihara, Toshio Ohara
Life of this patent
Estimating the term…
Abstract
An evaporator includes a flat tube extending in a vertical direction and having a drain groove for guiding condensed water downward, at a middle portion thereof in an air flow direction. A corrugated fin joined to the tube is divided by a gap portion into an air upstream side first fin and an air downstream side second fin. The gap portion faces the drain groove of the tube. Accordingly, condensed water produced at the air upstream side first fin can be smoothly discharged from the evaporator through the drain groove.
Claims16
A refrigerant evaporator comprising:
- a tube defining therein a flat passage extending in a vertical direction in which refrigerant flows and having an outer wall with a drain groove extending in the vertical direction for guiding condensed water downward;
- and
- a corrugated fin having a plurality of louvers for increasing a contact area with air flowing in an air flow direction, and joined to the outer wall of the tube, the corrugated fin including a first fin and a second fin, which are divided by a gap portion facing the drain groove of the tube, the first fin being disposed at an air upstream side of the second fin in the air flow direction wherein:
- the first fin and the second fin are connected with each other via a connecting portion crossing the gap portion.
A refrigerant evaporator comprising:
- a tube defining therein a passage in which refrigerant flows for exchanging heat with air flowing outside the tube in an air flow direction, and having an outer wall with a drain groove extending in a non-horizontal direction for guiding condensed water downward, the condensed water being produced by the air outside the tube;
- and
- a corrugated fin including a first fin and a second fin, which are joined to the outer wall of the tube and are divided by a gap portion extending approximately in parallel to the drain groove to face the drain groove in the non-horizontal direction wherein:
- the first fin and the second fin are connected with each other by a connecting portion crossing the gap portion.
A refrigerant evaporator comprising:
- a tube defining therein a flat passage extending in a vertical direction in which refrigerant flows and having an outer wall with a drain groove extending in the vertical direction for guiding condensed water downward;
- and
- a corrugated fin having a plurality of louvers for increasing a contact area with air flowing in an air flow direction, and joined to the outer wall of the tube, the corrugated fin including a first fin and a second fin, which are divided by a gap portion open to the drain groove of the tube, the first fin being disposed at an air upstream side of the second fin in the air flow direction wherein:
- the first fin and the second fin are connected with each other via a connecting portion crossing the gap portion.
Dependencies are inferred from the claim text.