Dryer appliance with an impeller assembly

A dryer appliance, comprising:

• a cabinet defining a vent;
• a drum rotatably mounted within the cabinet, the drum defining a chamber for receipt of articles for drying;
• a conduit that connects the chamber of the drum and the vent of the cabinet such that the chamber of the drum and the vent of the cabinet are in fluid communication;
• a motor;
• and
• an impeller assembly, the impeller assembly having an axis of rotation about which the impeller assembly is rotatable, the impeller assembly being in mechanical communication with the motor;
• the impeller assembly rotatable about the axis of rotation by the motor in order to urge a flow of air from the chamber of the drum to the vent of the cabinet through the conduit, the impeller assembly defining a radial direction, a circumferential direction and an axial direction, the impeller assembly comprising:
• a base plate;
• an annular front plate spaced apart from the base plate by a height, h, along the axial direction, the annular front plate having an inner edge and an outer edge, the inner edge of the annular front plate spaced apart from the axis of rotation of the impeller assembly along the radial direction, the outer edge of the annular front plate spaced apart from the inner edge of the annular front plate by a width, WA, along the radial direction, a ratio of the width WA to the height h being greater than about six tenths and less than about one and two tenths;
• and
• a plurality of blades extending between the base plate and the annular front plate along the axial direction, the plurality of blades spaced apart from each other along the circumferential direction.

A dryer appliance, comprising:

• a cabinet defining a vent;
• a drum rotatably mounted within the cabinet, the drum defining a chamber for receipt of articles for drying;
• a conduit that connects the chamber of the drum and the vent of the cabinet such that the chamber of the drum and the vent of the cabinet are in fluid communication;
• a motor;
• and
• an impeller assembly, the impeller assembly having an axis of rotation about which the impeller assembly is rotatable, the impeller assembly being in mechanical communication with the motor;
• the impeller assembly rotatable about the axis of rotation by the motor in order to urge a flow of air from the chamber of the drum to the vent of the cabinet through the conduit, the impeller assembly defining a radial direction, a circumferential direction and an axial direction, the impeller assembly comprising:
• a base plate having an outer edge that is spaced apart from the axis of rotation of the impeller assembly by a width, WP, along the radial direction;
• an annular front plate spaced apart from the base plate along the axial direction;
• and
• a plurality of blades extending between the base plate and the annular front plate along the axial direction, the plurality of blades spaced apart from each other along the circumferential direction, each blade of the plurality of blades having a trailing edge, the trailing edge of each blade of the plurality of blades spaced apart from the axis of rotation of the impeller assembly by a width, WL, along the radial direction, a ratio of the width WP to the width WL being greater than about eight tenths.