Electric Torque Machines Inc.

Motor Excellence LLC

Graco Minnesota Inc.

Other

Boston Scientific Scimed, Inc.

Scimed Life Systems, Inc.

St. Jude Medical, Cardiology Division, Inc.

Boston Scientific Corporation

Thomas F Janecek

David G Calley

Tyler Kenneth Williams

John Dyer

Daniel S Cole

Anthony Scott Hollars

Jeremy Scott Reynolds

Andrew J Kopel

Douglas S Ryder

Jarrod C Drexler

Bryan Dale Knodel

Mark L Adams

William Lucas Churchill

Steven Dale Becker

Stephen J Perry

Robert J Lind

Otto E Anderhub

Michele B Carter

David R Conti

Carleton E Yee

John B Golden

Yem Chin

Peter Trexler Keith

Thomas V Ressemann

John R Drontle

William M Blenkush

Christopher A Lins

Timothy Sean Roman

Donald C Hovey

Alexander J Daeger

Andrew Joseph Dusbabek

Mark D Shultz

Steven S Hackett

David M Larsen

Matthew R Theisen

Andrew J Ericson

Jeremy P Jurmu

Bryan K Colby

Peter Crowley

Jacob D Scherer

Joel D Phillips

Kyle Thunstrom

Todd B Hillukka

Arthur T Graf

Eric Stainbrook

Nicholas J Stein

Yam Chin

J Scott Reynolds

Chad W Trembath

Mark D Schultz

John M Dyer

John C Golden

Morgan Conklin

Scott Reynolds

Bryan D Knodel

A grease inhibitor is disposed about a rotating shaft of an electric machine. The grease inhibitor is configured to inhibit flow of grease towards electromagnetic components of the electric machine along the shaft. The grease inhibitor includes an inner member that rotates with the shaft and that interfaces with a static component to form the grease inhibiting interface.

Grease inhibitor

A fluid moving apparatus includes an electric motor having a rotor and a stator and a propeller. The rotor rotates relative to the stator on an axis to generate a rotational output. The rotational output is provided to the propeller to power the marine propulsion apparatus. The stator includes one or more coils configured to power rotation of the rotor. The one or more coils extend circumferentially around and can be coaxial on the axis. A portion of a housing of the motor extends into the aquatic environment to facilitate heat dissipation.

Marine propeller system with high torque drive

A drive system for a fluid displacement pump includes an electric motor, a drive coupled to the rotor at a first end of the electric motor, a pump including a fluid displacement member mechanically coupled to the drive, and a controller configured to control a level of power to the electric motor based on a pressure setting set by a user. The electric motor includes a stator and a rotor disposed on an axis. The drive coupled to the rotor converts the rotational output to a linear, reciprocating input to power a pump.

Pump drive system

A fluid moving apparatus includes an electric motor having a rotor and a stator and a fluid displacement member. The rotor rotates relative to the stator on a common axis to generate a rotational output. The rotational output is provided to the fluid displacement member to power the fluid displacement member to one of move linearly along and rotate about the common axis. The stator includes one or more coils configured to power rotation of the rotor. The one or more coils extend circumferentially around and can be coaxial on the common axis.

Pump with high torque drive

A transverse flux motor is formed by a stator portion and a rotor portion. The stator portion includes one or more phase assemblies formed by flux ring plates axially bracketing coil wire windings. The flux rings include teeth that magnetically interact with circumferentially opposed and adjacent teeth to form flux paths transverse to the axis of rotation of the rotor assembly.

Transverse flux electric machine

An electric motor includes a rotor and a stator formed by a plurality of stator phases. The stator phases include coils that extend fully about the motor axis of the motor. The stator phases further includes flux rings disposed on opposite axial sides of the coil and that are joined by axial returns. The stator phases electromagnetically drive rotation of the rotor on the motor axis.

Electric motor

A drive system for a fluid displacement pump includes an electric motor, a drive coupled to the rotor at a first end of the electric motor, a fluid displacement member mechanically coupled to the drive, and a pump frame mechanically coupled to the electric motor. The electric motor includes a stator and a rotor disposed on an axis. The drive coupled to the rotor converts the rotational output to a linear, reciprocating input to the fluid displacement member. The rotor is disposed about the stator to rotate about the stator.

A high efficiency transverse flux motor fan utilizes a transverse flux motor that can provide torque to drive fan blades at a reduced weight over conventional induction and brushless DC motors. A fan incorporating a transverse flux motor may be a residential ceiling fan or high volume low speed fan. Transverse flux motors are ideal for these applications as they have a higher efficiency at low revolutions per minute. A transverse flux motor may have a stator utilizing a ring shaped lamina that has extending members that form a coil channel. A lamina may be a unitary piece of material that is formed from a sheet of metal, thereby providing a very lightweight stator assembly. An exemplary fan may provide an airflow efficiency of more than about 236 L/s*W, (500 CFM/watt), an essential airflow density of more than about 2.36 L/s*g, (5 CFM/gram) and a power density of about 150 W/kg or more.

High efficiency transverse flux motor fan

An electrical machine includes a rotor for rotation about a rotational axis, a coil arranged circumferentially with respect to and encircling the rotational axis, and a stator assembly. The stator assembly includes a unitary lamina comprising a plurality of extending members integral therewith, the extending members being bent to form a plurality of opposing extending members about the coil. The electrical machine is at least one of a transverse flux machine or a commutated flux machine. Methods of manufacturing stators for assembly with rotors to form electrical machines are also disclosed.

Transverse flux stator geometry

A self-cooling fan in configured with a vent feature that draws air into a fan housing and over a heat sink to dissipate heat generated by the motor and/or control unit. The self-cooling fan has a conduit with an attached end opening that couples with a cooling zone within the fan housing and extends along a portion of the fan blade(s). A vent feature is an opening in a conduit, at or near the extended end of the conduit, that allows air to exit the conduit. A vent feature may be a venturi feature. A venturi feature creates a vacuum within a conduit via outer diameter blade velocities interacting with venturi geometries when the blades are rotating, further promoting the drawing of air into the fan housing. A cooling channel allows air from outside of the fan assembly to enter into a cooling zone where a heat sink is configured.

Self-cooling fan assembly

An electrical machine includes a rotor with a rotational axis, a coil arranged circumferentially with respect to and fully encircling the rotational axis, and a stator assembly. The stator assembly includes first and second lamination stacks comprising associated pluralities of laminae, the stacks being arranged circumferentially with respect to the rotational axis on opposing sides of the coil for conducting magnetic flux. The stacks are configured with gaps generally radially through the laminae thereof, defining separate circumferential segments in each laminae, to prevent creating a continuous electrical circuit around the rotational axis in the segments. Each laminae has a connecting ring spaced radially from the segments, and beams connecting the segments to the ring as a unitary piece. Back return elements extend axially between the stacks to provide a flux path therebetween, and are positioned circumferentially between adjacent parts of the beams and radially between the segments and the ring.

Segmented stator with controlled eddy current

Growing community of inventors

Flagstaff, AZ, United States of America

Thomas F Janecek