Power transmission

Patent · Tue Mar 05 04:00:00 EST 1991

OSTI ID:5473373

Blatter, A; Davis, R E

This patent describes a method of obtaining torque motor air gap symmetry is provided which. It comprises: forming a pole piece/magnets subassembly having upper and lower pole pieces including a gap, and an armature which has ends, lower edges and upper surfaces on the ends to provide a desired total pole air gap on both ends of the pole piece/magnets subassembly, forming the armature ends so that they are equal to the desired total pole gap minus twice the desired nominal air gap, forming a spring tub/flapper subassembly, assembling the torque motor before attaching the armature to the spring tube/flapper subassembly, positioning the spring tube/flapper subassembly and the pole piece/magnets in a relative position to one another, providing spacers between the lower edges of the armature and the gap of the pole pieces, providing wedges between the upper surfaces of the ends of the armatures and the gap of the upper pole piece, and providing a joint between the tube and the armature by a hardenable material to bond the armature and the spring tube/flapper subassembly and providing conditions which will harden and set the joint.

• Assignee: Vickers Incorporated, Troy, MI (USA)
• Patent Number(s): US 4997002; A
• Application Number: PPN: US 7-497393
• OSTI ID: 5473373
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330602* -- Vehicle Design Factors-- Engine-Transmission Matching
DESIGN
MACHINE PARTS
MAGNETS
MECHANICAL TRANSMISSIONS
SPRINGS
TORQUE