Abstract: A dryer appliance or ventilation assembly, as provided herein, may include an impeller, a housing, a front duct, and a sealing gasket. The impeller may be rotatable about an axial direction to urge a flow of air. The housing may enclose the impeller within a cabinet. The housing may define an entrance upstream of the impeller to permit air into the housing. The front duct may include an attachment collar defining a duct outlet. The attachment collar may be received within the entrance. The sealing gasket may be radially positioned between the attachment collar and the entrance.

Abstract: Automatic germination equipment for oat grains includes a plurality of germination accelerating tank bodies each of which is of a hollow structure, a first direction and a second direction are self-defined in each germination accelerating tank body, a plurality of leaching layers are fixedly arranged in each germination accelerating tank body in the first direction, and the leaching layers are fixedly installed on an inner side surface of the germination accelerating tank body; and a reciprocating switch valve device which includes a bottom valve and a rotating lead screw fixedly connected to the bottom valve, the bottom valve is fixedly connected to an outer side surface of the germination accelerating tank body in the first direction, and one end of the rotating lead screw away from the bottom valve passes through the leaching layers in the second direction and extends towards the interior of the germination accelerating tank body.

Abstract: A dryer appliance, as provided herein, may include a cabinet, a drum, a drying chamber, and a supply duct. The cabinet may define an internal volume. The drum may be mounted within the cabinet. The drum may define a drying chamber, a dryer opening, an air inlet, and a fluid port. The drying chamber may extend from a front end to a rear end. The dryer opening may be defined at the front end to permit articles therethrough to the drying chamber. The air inlet may be defined at the rear end to permit air therethrough to the drying chamber. The fluid port may be spaced apart from the air inlet. The fluid port may extend from the drying chamber to the internal volume. The supply duct may extend within the cabinet to the drum upstream from the air inlet.

Abstract: Automatic germination equipment for oat grains includes a plurality of germination accelerating tank bodies each of which is of a hollow structure, a first direction and a second direction are self-defined in each germination accelerating tank body, a plurality of leaching layers are fixedly arranged in each germination accelerating tank body in the first direction, and the leaching layers are fixedly installed on an inner side surface of the germination accelerating tank body; and a reciprocating switch valve device which includes a bottom valve and a rotating lead screw fixedly connected to the bottom valve, the bottom valve is fixedly connected to an outer side surface of the germination accelerating tank body in the first direction, and one end of the rotating lead screw away from the bottom valve passes through the leaching layers in the second direction and extends towards the interior of the germination accelerating tank body.

Abstract: A dryer appliance, as provided herein, may include a cabinet, a drum, a drying chamber, and a supply duct. The cabinet may define an internal volume. The drum may be mounted within the cabinet. The drum may define a drying chamber, a dryer opening, an air inlet, and a fluid port. The drying chamber may extend from a front end to a rear end. The dryer opening may be defined at the front end to permit articles therethrough to the drying chamber. The air inlet may be defined at the rear end to permit air therethrough to the drying chamber. The fluid port may be spaced apart from the air inlet. The fluid port may extend from the drying chamber to the internal volume. The supply duct may extend within the cabinet to the drum upstream from the air inlet.

Abstract: A dryer appliance, as provided herein, may include a cabinet, a drum, a motor, an impeller, and a housing. The motor may be mounted within the cabinet. The impeller may be in mechanical communication with the motor to motivate rotation of the impeller about an axial direction. The impeller may be rotatable about the axial direction to urge a flow of air from the chamber of the drum to a vent of the cabinet. The housing may include a front panel and a rear panel. The front panel and the rear panel may be spaced apart along the axial direction by a housing cavity within which the impeller is positioned. The front panel may define an entrance upstream of the impeller. The rear plate may define a circular groove may extend rearward from the housing cavity and be concentrically aligned with a circumferential perimeter of the impeller.

Abstract: A dryer appliance or ventilation assembly, as provided herein, may include an impeller, a housing, a front duct, and a sealing gasket. The impeller may be rotatable about an axial direction to urge a flow of air. The housing may enclose the impeller within a cabinet. The housing may define an entrance upstream of the impeller to permit air into the housing. The front duct may include an attachment collar defining a duct outlet. The attachment collar may be received within the entrance. The sealing gasket may be radially positioned between the attachment collar and the entrance.

Abstract: A dryer appliance, as provided herein, may include a cabinet, a drum, a motor, an impeller, and a housing. The motor may be mounted within the cabinet. The impeller may be in mechanical communication with the motor to motivate rotation of the impeller about an axial direction. The impeller may be rotatable about the axial direction to urge a flow of air from the chamber of the drum to a vent of the cabinet. The housing may include a front panel and a rear panel. The front panel and the rear panel may be spaced apart along the axial direction by a housing cavity within which the impeller is positioned. The front panel may define an entrance upstream of the impeller. The rear plate may define a circular groove may extend rearward from the housing cavity and be concentrically aligned with a circumferential perimeter of the impeller.

Abstract: A dryer appliance and a method of operating the same to introduce a fragrance into the drying chamber include positioning a reservoir within the cabinet of the dryer appliance. The reservoir contains a fragrant additive and is positioned such that a flow of air may pass through the fragrant additive and into the drying chamber to improve the smell of the drying chamber and articles placed therein. The reservoir may be positioned within the cabinet and covered with a selectively positioned lid or may be placed in fluid communication with an air handler of the dryer appliance to permit the intermingling of the flow of air and the fragrant additive.

Abstract: A dryer appliance and a method of operating the same to detect blockages are provided. The dryer appliance includes an exhaust conduit that defines a flow restriction and is in fluid communication with a drying chamber. A differential pressure sensor is operably coupled to the exhaust conduit at the flow restriction and a controller is configured for using a measured pressure differential to obtain an air flow rate and determine whether a blockage is present in the exhaust conduit, e.g., by comparing the measured flow rate to a baseline, zero-blockage flow rate.

Abstract: A dryer appliance and a method of operating the same to introduce a fragrance into the drying chamber include positioning a reservoir within the cabinet of the dryer appliance. The reservoir contains a fragrant additive and is positioned such that a flow of air may pass through the fragrant additive and into the drying chamber to improve the smell of the drying chamber and articles placed therein. The reservoir may be positioned within the cabinet and covered with a selectively positioned lid or may be placed in fluid communication with an air handler of the dryer appliance to permit the intermingling of the flow of air and the fragrant additive.

Abstract: A dryer appliance and a method of operating the same to detect blockages are provided. The dryer appliance includes an exhaust conduit that defines a flow restriction and is in fluid communication with a drying chamber. A differential pressure sensor is operably coupled to the exhaust conduit at the flow restriction and a controller is configured for using a measured pressure differential to obtain an air flow rate and determine whether a blockage is present in the exhaust conduit, e.g., by comparing the measured flow rate to a baseline, zero-blockage flow rate.

Abstract: A dryer appliance and method of operation are generally provided. The dryer appliance may include a drying chamber, an air passage in fluid communication with the drying chamber, and a heater in thermal communication with the drying chamber. The method may include motivating an airflow through the drying chamber and the air passage. The method may include measuring a velocity of the airflow through the air passage. Also included may be determining an article load size within the drying chamber based on the measured velocity, and directing a power output at the heater based on the determined article load size.

Abstract: A washing machine appliance includes a wash tub defining a tub inlet, a wash basket rotatably mounted within the wash tub, and a motor including a rotor for rotating the wash basket. The washing machine appliance also includes a fan assembly positioned behind the wash tub and including a plurality of fan blades that are operably coupled to and extend from the rotor. A fan housing is positioned around the plurality of fan blades and defines a fan outlet in fluid communication with the tub inlet of the wash tub such that the fan blades generate a flow of air which is provided into the wash basket when the rotor is rotating.

Abstract: A dryer appliance and method of operation are generally provided. The dryer appliance may include a drying chamber, an air passage in fluid communication with the drying chamber, and a heater in thermal communication with the drying chamber. The method may include motivating an airflow through the drying chamber and the air passage. The method may include measuring a velocity of the airflow through the air passage. Also included may be determining an article load size within the drying chamber based on the measured velocity, and directing a power output at the heater based on the determined article load size.

Abstract: A fan assembly for a dryer appliance is provided. The fan assembly includes an inlet duct that fluidly couples a chamber of the dryer appliance to a fan inlet. The inlet duct includes one or more guide vanes that are configured to direct the air in a manner that improves the pressure rise across the fan, thereby improving appliance performance. For example, the guide vanes may be positioned and oriented to generate a negative pre-swirl of the flow of air, such that the flow of air enters the fan inlet rotating in a direction opposite the direction of rotation of an impeller. Additionally, or alternatively, one or more guide vanes may be positioned and oriented to generate a laminar flow of otherwise turbulent air from the chamber of the dryer appliance.

Abstract: A housing for receiving an impeller is provided. The housing includes a transition duct that extends between a volute of the housing and an exhaust exit of the housing. Cross-sections of the transition duct continuously vary from an inlet cross-section of the transition duct to an outlet cross-section of the transition duct along a length of the transition duct. A related dryer appliance is also provided.

Abstract: A dryer appliance is provided, including a cabinet, a drum, an outlet assembly, an exhaust sensor, and a fluid injector. The drum may be mounted within the cabinet and define a drying chamber. The outlet assembly may be attached to the drying chamber and include a conduit defining an exhaust passage in fluid communication with the drying chamber. The conduit may extend from an inlet at the drying chamber to an outlet. The conduit may further define an access port along the exhaust passage between the inlet and the outlet. The exhaust sensor may be disposed in communication with the exhaust passage. The fluid injector may be attached to the conduit between the inlet and the outlet, and be directed at the access port.

Abstract: A dryer appliance is provided, including a cabinet, a drum, an outlet assembly, an exhaust sensor, and a fluid injector. The drum may be mounted within the cabinet and define a drying chamber. The outlet assembly may be attached to the drying chamber and include a conduit defining an exhaust passage in fluid communication with the drying chamber. The conduit may extend from an inlet at the drying chamber to an outlet. The conduit may further define an access port along the exhaust passage between the inlet and the outlet. The exhaust sensor may be disposed in communication with the exhaust passage. The fluid injector may be attached to the conduit between the inlet and the outlet, and be directed at the access port.

Abstract: A dryer appliance includes a cabinet defining an interior, and a drum positioned within the interior. The drum defines a chamber for receipt of articles for drying, and includes a cylinder and a rear wall. The cylinder is rotatable relative to the rear wall. The dryer appliance further includes a heater configured to provide heat to the chamber, the heater comprising a heating element mounted to the rear wall.