Thomas Miller Chapman

US Patent:

8267674, Sep 18, 2012

Filed:

Feb 4, 2010

Appl. No.:

12/700026

Inventors:

Alexander Czulak - Wayland MA, US
Thomas R. Chapman - Templeton MA, US

Assignee:

Robert Bosch GmbH - Stuttgart

International Classification:

F04B 17/00
F04B 35/00
F04B 39/06
F04B 35/04
F04B 39/02

US Classification:

417370, 41742314

Abstract:

A motor housing includes a motor support portion defining a central axis and including a first end and a second end, a wall surrounding the motor support portion, a surface offset from the wall toward the second end in a direction parallel with the central axis, a cooling air passageway oriented generally parallel with the central axis and offset from the central axis, and an inlet, opening directly into the cooling air passageway, at least partially defined between the wall and the surface. The inlet is configured to permit entry of a tangential airflow into the cooling air passageway, and the inlet is configured to permit entry of a radial airflow into the cooling air passageway.

US Patent:

20110116928, May 19, 2011

Filed:

Nov 16, 2009

Appl. No.:

12/619450

Inventors:

Alexander Czulak - Wayland MA, US
Thomas R. Chapman - Templeton MA, US

Assignee:

ROBERT BOSCH GMBH - Stuttgart

International Classification:

F04D 29/30
F04D 29/58
F04D 29/42

US Classification:

416 95, 415203, 416182

Abstract:

An open-hub centrifugal blower includes a hub rotatable about an axis, an outer rim concentric with the hub, a plurality of blades coupled to the outer rim, a plurality of spokes interconnecting the hub and the outer rim, and a cooling rib extending from at least one of the spokes.