| 165 / | HD | HEAT EXCHANGE |
|
| DIG 228 | DD | WITH FAN OR PUMP {3} |
| DIG 302 |  | .~ Rotary gas pump {7} |
| DIG 303 | DD | .~.~> Annular heat exchanger {1} |
| DIG 307 | DD | .~.~> Including plural impellers {1} |
| DIG 310 | DD | .~.~> Heat exchanger located at housing inlet or outlet |
| DIG 311 | DD | .~.~> Including particular flow deflector (e.g., shroud, diffuser, etc.) {2} |
| DIG 314 | DD | .~.~> Radial impeller {1} |
| DIG 316 | DD | .~.~> Axial impeller located at heat-exchange housing inlet |
| DIG 317 | DD | .~.~> Axial impeller located at heat-exchange housing outlet |