Transmission for an automobile

• US 4,329,887 A
• Filed: 02/05/1980
• Issued: 05/18/1982
• Est. Priority Date: 02/07/1979
• Status: Expired due to Term

• Current Assignee: Nissan Motor Co., Ltd.
• Original Assignee: Nissan Motor Co., Ltd.
• Inventors: Kawamoto, Tamio
• Primary Examiner(s): Staab, Lawrence J.
• Application Number:
  US06/118,730
• Time in Patent Office: 833 Days
• Field of Search: 74/467, 184/6, 184/6.12, 184/8, 184/9, 184/11 R, 184/11 A
• US Class Current: 74/467
• CPC Class Codes: F16H 3/0915 with coaxial input and output shafts
• CPC Class Codes: F16H 57/0423 Lubricant guiding means mounted or supported on the casing, e.g. shields or baffles for collecting lubricant, tubes or pipes means for guiding lubricant into an axial channel of a shaft F16H57/0426; lubrication by injection, injection nozzles or tubes therefore F16H57/0456
• CPC Class Codes: F16H 57/0441 Arrangements of pumps
• CPC Class Codes: F16H 57/045 Lubricant storage reservoirs, e.g. reservoirs in addition to a gear sump for collecting lubricant in the upper part of a gear case
• CPC Class Codes: F16H 57/0471 Bearing
• CPC Class Codes: F16H 57/0494 with variable gear ratio or for reversing rotary motion
• CPC Class Codes: Y10T 74/19991 Lubrication

Abstract

A transmission for automobiles including a hollow control shaft for changing speeds in response to actuation of a control lever, through which hollow control shaft lubricating oil is distributed to different parts of the transmission.

Claims

1. In an automotive transmission wherein speed changes are effected by axially and rotationally adjusting a control shaft extending through a gear case, the improvement therein comprising:

a lubricating oil reservoir surrounding the control shaft, a shelf in said gear case inclined toward said reservoir, said shelf being arranged to collect and deliver oil to said reservoir, an internal passageway extending axially through the control shaft, an inlet opening in the control shaft through which oil is received from said reservoir into said internal passageway, and outlets in the control shaft communicating with said internal passageway and through which oil is delivered at locations remote from said reservoir, the gear case having bearings journaling gears for different speeds and a case extension with a bush, the control shaft having one said outlet facing said case extension bush adapted to provide the lubricating oil from said internal passageway to said case extension bush, said one outlet for providing oil to said case extension bush being located at one end of the control shaft.