Hanon Systems

Harald Jung

Johannes Stausberg

Detlef Handwerk

Eckart Sievers

Olaf Degenhardt

Nico Esser

A cooling air interface in a fan housing provided for diverting an amount of cooling air to cool a fan motor from a main air flow on a compression side of the fan, and delivering the cooling air to the fan motor to be cooled. The interface including a cooling air channel with an intake opening emptying into a cooling air passage having a cooling air exit opening where the cooling air is brought to the fan motor. Wall sections of the main air flow path that adjoin the intake opening, which in relation to the direction of the main air flow, are located upstream and downstream of the intake opening, extend up to the adjoining intake opening and into the cooling air channel, transitioning into the cooling air channel walls situated opposite one another in the form of rounded surfaces without corners and edges.

Edge-free blower cooling interface

A centrifugal blower unit for motor vehicle air conditioning systems having a fan wheel () in a spiral housing (), wherein the spiral housing () corresponds to the shape of the fan wheel () and has a bell mouth region () and an axial intake opening (), wherein a diaphragm () is arranged at the bell mouth region () of the spiral housing (), being radially inward, whose diaphragm end region () bordering the intake opening () has at least one sharp edge.

Growing community of inventors

Bornheim, Germany

Harald Jung