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:
Aug. 17, 1982
Filed:
Nov. 13, 1979
Michisuke Nagasaki, Toyonaka, JP;
Kinichi Aso, Yao, JP;
Yanmar Diesel Engine Co., Ltd., Osaka, JP;
Abstract
A reduction and reversing gear for marine propulsion systems making use of the clutch case of a conventional reduction and reversing gear of a type having an input shaft mounted on an upper part of the clutch case, an output shaft extending in parallel with the input shaft and mounted on a lower part of the clutch case, a multiple disc clutch carried by the input shaft, a small gear rotatably carried by the input shaft and adapted to be connected to and disconnected from the latter by the multiple disc clutch, and a large gear carried by the output shaft and engaging the small gear. A planetary gear type reduction gear is disposed in the space around the output shaft and below the multiple disc clutch to make an efficient use of that space, thereby to provide an additional reduction stage between the large gear and the output shaft. Thanks to this additional reduction stage provided by the planetary gear type reduction gear, it is possible to obtain a large variety of reduction ratios up to 8 using the same clutch case.