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:
Jun. 10, 2025
Filed:
Dec. 23, 2019
Cummins Ltd, London, GB;
Matthew Purdey, Huddersfield, GB;
Cummins Ltd., London, GB;
Abstract
A seal system for a bearing chamber () of a turbomachine includes the baffle element () encircling the axis () of the machine. The baffle element is formed with front surface including both a recess () which defines a circumferentially-extending oil-receiving channel (), and an oil-deflecting surface () on a gutter (). The channel decreases in cross-sectional area close to the oil-deflecting surface, and a circular line which is within the channel distant from the gutter, intersects with the oil-deflection surface. This forces the oil to change direction at the gutter, and urges the oil radially outward. Thus, a high rotational velocity of the body of oil may be maintained, whilst improving the drainage efficiency of the seal system at the gutter.