Karl Thomas Schuetze

US Patent:

7425807, Sep 16, 2008

Filed:

Nov 29, 2006

Appl. No.:

11/606434

Inventors:

David E Perkins - Austin TX, US
James A Andrews - Austin TX, US
Scott D Logan - Cedar Park TX, US
Karl T Schuetze - Austin TX, US
David A Badger - Lago Vista TX, US
Robert S Hudson - Austin TX, US

Assignee:

Active Power, Inc. - Austin TX

International Classification:

H02K 7/02

US Classification:

318161, 318150, 745721, 322 4

Abstract:

This disclosure relates to transient energy systems for supplying power to a load substantially instantaneously on demand. Transient energy systems may include a flywheel coupled the rotor of an induction motor generator. One embodiment of the disclosure refers to systems and methods for reducing loads on a bearing in a transient energy system. In another embodiment, the disclosure refers to an induction motor generator that is optimized for high power transient power generation, yet low power motor operation. Yet another embodiment of the disclosure refers to using a flywheel as a drag pump to cool components of a transient energy system. In yet another embodiment, a slip control scheme is discussed for regulating a DC bus. In yet a further embodiment of the disclosure a method is provided for reducing unnecessary turbine starts by making turbine start a function of the rotational velocity of a flywheel.

US Patent:

8333330, Dec 18, 2012

Filed:

Sep 17, 2004

Appl. No.:

10/943294

Inventors:

Karl T. Schuetze - Austin TX, US
Robert S. Hudson - Austin TX, US

Assignee:

Active Power, Inc. - Austin TX

International Classification:

B60H 1/02

US Classification:

237 121, 237 2 B, 237 12, 237 19, 237 80, 1374875, 137102, 137 14, 141 18, 165481

Abstract:

Systems and methods for using a dual-path fluid routing system that uses a flow restriction device to enhance temperature and pressure control of fluid are provided. Systems and methods for using a setpoint pressure control system to accurately control the setpoint pressure of a regulator are also provided.

US Patent:

20060060246, Mar 23, 2006

Filed:

Sep 17, 2004

Appl. No.:

10/943328

Inventors:

Karl Schuetze - Austin TX, US
Matthew Weaver - Austin TX, US

International Classification:

G05D 7/01

US Classification:

137488000

Abstract:

Systems and methods for using a dual-path fluid routing system that uses a flow restriction device to enhance temperature and pressure control of fluid are provided. Systems and methods for using a setpoint pressure control system to accurately control the setpoint pressure of a regulator are also provided.

US Patent:

20110215645, Sep 8, 2011

Filed:

Nov 5, 2010

Appl. No.:

12/940858

Inventors:

Markus Schomburg - Osterode, DE
Uwe Schrader-Hausmann - Osterode, DE
James Murphy - Worcestershire, GB
Ron Landis - Austin TX, US
Karl Schuetze - Austin TX, US
Bradley Walter - Lockhart TX, US

Assignee:

ACTIVE POWER, INC. - Austin TX

International Classification:

H02J 9/08

US Classification:

307 65

Abstract:

It is an object of this disclosure to provide an efficient continuous power system that may be deployed quickly and at low cost to a variety of destinations. The containerized nature of the presently disclosed system may allow these advantages to be attained. The disclosed system is particularly well suited for deployment in data center applications, but one of ordinary skill will recognize that it may be useful in a variety of situations.

US Patent:

20130133917, May 30, 2013

Filed:

May 23, 2012

Appl. No.:

13/479160

Inventors:

Karl Schuetze - Austin TX, US

Assignee:

ACTIVE POWER, INC. - Austin TX

International Classification:

H01B 3/48

US Classification:

174102 R, 264104

Abstract:

Methods and systems for preventing corona discharge are provided. In one embodiment, an insulation system for a coil conductor comprising a grounded conductive or semi-conductive layer is molded over a primary insulation layer molded on coil conductor which limits the occurrence of voltage drop to the primary insulating layer is disclosed.

US Patent:

20140366684, Dec 18, 2014

Filed:

Sep 1, 2014

Appl. No.:

14/474288

Inventors:

- Austin TX, US
Karl T. Schuetze - Austin TX, US

Assignee:

Active Power, Inc - Austin TX

International Classification:

H02K 7/02
H01B 7/28

US Classification:

7457211

Abstract:

Methods and systems for preventing corona discharge are provided. In one embodiment, a housing forming a vacuum includes a coil conductor comprising a grounded conductive or semi-conductive layer that is molded over a primary insulation layer molded on coil conductor which limits the occurrence of voltage drop to the primary insulating layer is disclosed.

US Patent:

20140210289, Jul 31, 2014

Filed:

Oct 8, 2013

Appl. No.:

14/048577

Inventors:

- Austin TX, US
KARL THOMAS SCHUETZE - AUSTIN TX, US

International Classification:

H02K 7/09
H02K 7/02
H02K 7/08

US Classification:

310 74, 310425, 310 89, 310 905

Abstract:

Apparatus and methods for providing a pre-determined axial thrust force profile for use in a rotating machine that includes a magnetically permeable rotor with first and second surfaces and a generally perpendicular shaft is disclosed. One or more bearings support the shaft and a coil induces flux in the rotor. First and second pole pieces disposed adjacent to the first and second surfaces define first and second gaps. A series magnetic circuit including the pole pieces, the gaps and the rotor carries flux generated by current flowing in the coil. Pole pieces and gaps provide substantially similar reluctance in both gaps. Magnetic saturation characteristics of a series magnetic circuit may provide a pre-determined axial force profile as a function of coil current. A first magnetic saturation characteristic may provide a maximum axial force at a first current magnitude. A second magnetic saturation characteristic may provide a lower axial force at a current greater than the first current. The saturation characteristic may be formed by configuring the geometry and dimensions of the poles. The axial force profile may be formed to reduce the net axial thrust load on the bearings.