The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 05, 2010
Filed:
May. 14, 2007
David Eichenberger, Sanford, NC (US);
Jeremy Odell, Bryan, OH (US);
Spencer Zeedyk, Bryan, OH (US);
Darin Thorp, Montpelier, OH (US);
David Eichenberger, Sanford, NC (US);
Jeremy Odell, Bryan, OH (US);
Spencer Zeedyk, Bryan, OH (US);
Darin Thorp, Montpelier, OH (US);
Ingersoll Rand Company, Montvale, NJ (US);
Abstract
An engine starter includes a motor housing having an inlet and an outlet for a motive fluid, a fluid-driven motor within the motor housing, the motor including a rotor and a stator, the stator directing a flow of fluid over the rotor, thereby inducing rotation of the rotor about an axis and exerting an axial force on the rotor and an output shaft operably coupled to the rotor such that rotation of the rotor drives rotation of the shaft about the axis. A front and a rear ball bearing assembly support the rotor. A front biasing member is pre-loaded to exert a first biasing load on the front ball bearing assembly and a rear biasing member is pre-loaded to exert a second biasing load on the rear ball bearing assembly in opposition of the axial force exerted on the rotor. The biasing members distribute the axial force between the two ball bearing assemblies.