Patent ID: 6318501
Filing Date: 2001-11-20
Classification: F16H,Y10T

Abstract:
A lubrication arrangement in a transmission which incorporates a first rotational shaft and a second rotational shaft disposed such that one end of said first rotational shaft faces one end of said second rotational shaft, comprising:a first lubrication passage which is provided extending axially inside said first rotational shaft with an opening at said one end thereof;a second lubrication passage which is provided extending axially inside said second rotational shaft with an opening at said one end thereof;a conduit which leads lubrication oil that is supplied from a source of lubrication oil to a space between said two openings of said first and second rotational shafts;an oil chamber which is provided between said two openings and functions as a point where the lubrication oil led therein through said conduit is portioned out to said first lubrication passage and to said second lubrication passage:a first oil guide which is provided in said oil chamber and functions to set an amount of lubrication oil flowing into said first lubrication passage; anda second oil guide which is provided in said oil chamber and functions to set an amount of lubrication oil flowing into said second lubrication passage,wherein each of said first and second oil guides comprises a disk-shaped support portion and a cylindrical portion which extends perpendicularly from a central part of said support portion, which is fixed on a member constituting said oil chamber,wherein said cylindrical portion of said first oil guide extends into said first lubrication passage while said cylindrical portion of said second oil guide extends into said second lubrication passage, andwherein an open area which is provided at said cylindrical portion of said first oil guide and an open area which is provided at said cylindrical portion of said second oil guide are determined to set a ratio for the amounts of lubrication oil that are portioned out to said first lubrication passage and to said second lubrication passage.