Jürgen WEIGAND has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
Abstract: Gear unit with a gear unit housing, a drive-side and an output-side shaft and a gear ratio stage. The gear unit housing has a toothing space in which there are intermeshing toothed wheels and a bearing space separated from the toothing space. The bearing space in which bearing lubricating oil can be collected is operated under atmospheric pressure. The bearing lubricating oil is guided from the bearing space to an oil collecting receptacle external to the gear unit. The toothing lubricating oil collected in the toothing space is fed to the oil collecting receptacle to be at least partially separated from the bearing lubricating oil. In partial vacuum operation the toothing lubricating oil is conveyed from the toothing space into the oil collecting via a delivery pump, and in atmospheric operation, the toothing lubricating oil is conveyed from the toothing space into the oil collecting receptacle via a check valve.
Type:
Grant
Filed:
April 15, 2016
Date of Patent:
October 9, 2018
Assignee:
RENK Aktiengesellschaft
Inventors:
Dietmar Sterns, Jürgen Weigand, Oliver Kraus
Abstract: Gear unit with a gear unit housing, a drive-side and an output-side shaft and a gear ratio stage. The gear unit housing has a toothing space in which there are intermeshing toothed wheels and a bearing space separated from the toothing space. The bearing space in which bearing lubricating oil can be collected is operated under atmospheric pressure. The bearing lubricating oil is guided from the bearing space to an oil collecting receptacle external to the gear unit. The toothing lubricating oil collected in the toothing space is fed to the oil collecting receptacle to be at least partially separated from the bearing lubricating oil. In partial vacuum operation the toothing lubricating oil is conveyed from the toothing space into the oil collecting via a delivery pump, and in atmospheric operation, the toothing lubricating oil is conveyed from the toothing space into the oil collecting receptacle via a check valve.
Type:
Application
Filed:
April 15, 2016
Publication date:
October 20, 2016
Inventors:
Dietmar STERNS, Jürgen WEIGAND, Oliver KRAUS