BLOWER AND HEAT PUMP UNIT

A blower includes a propeller fan, and an enclosure. The propeller fan is configured to rotate around a rotation axis. The propeller fan includes a plurality of blades at unequal pitches. The enclosure houses the propeller fan. The enclosure includes a bell mouth. The enclosure has a depth L. The be...

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Bibliographische Detailangaben
Hauptverfasser:	MORI, Toshihiro, ANDOU, Hiroki, ONO, Takashi
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING HEATING LIGHTING MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT PUMPS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS WEAPONS
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Beschreibung
Zusammenfassung:	A blower includes a propeller fan, and an enclosure. The propeller fan is configured to rotate around a rotation axis. The propeller fan includes a plurality of blades at unequal pitches. The enclosure houses the propeller fan. The enclosure includes a bell mouth. The enclosure has a depth L. The bell mouth includes a cylindrical part parallel to the rotation axis.0.14≤H⁢⁢2H⁢⁢0≤0.22⁢#A length of the blades is H0 in a rotation axis direction, and a length of the cylindrical part is H2 in the rotation axis direction.