Arrangement for oil cooler for final drive unit

• US 4,915,192 A
• Filed: 09/08/1988
• Issued: 04/10/1990
• Est. Priority Date: 09/17/1987
• Status: Expired due to Term

• Current Assignee: Nissan Motor Co., Ltd.
• Original Assignee: Nissan Motor Co., Ltd.
• Inventors: Hayashida, Tsutomu, Shizuta, Atsushi
• Primary Examiner(s): Mitchell, David M.
• Application Number:
  US07/241,897
• Time in Patent Office: 579 Days
• Field of Search: 180/68.4, 180/68.6, 180/309, 180/89.2, 180/88, 180/905, 180/76, 180/339, 180/375, 165/41, 165/44, 165/47, 74/606 A, 296/204, 184/104.1
• US Class Current: 180/309
• CPC Class Codes: F01P 11/08 Arrangements of lubricant coolers in lubrication apparatus F01M
• CPC Class Codes: F01P 2060/045 for transmissions
• CPC Class Codes: F16H 57/0415 Air cooling or ventilation; Heat exchangers; Thermal insulations
• CPC Class Codes: F16H 57/0483 Axle or inter-axle differentials
• CPC Class Codes: Y10T 74/2189 Cooling

Abstract

An oil cooler for a final drive unit is disposed under a vehicle floor and installed on a rear elevated portion of a rear floor panel and under a rear seat. In one embodiment, bracket arrangement for installing the oil cooler under the vehicle floor serves not only as a support for the oil cooler but as a deflector or an air introducing device for efficiently introducing air to the oil cooler.

Claims

1. An oil cooler arrangement for a vehicle comprising:

a rear seat;

a vehicle floor having a rear elevated portion on which said rear seat is installed;

a propeller shaft which has a rear end and which is disposed under said vehicle floor;

an exhaust system which is disposed under said vehicle floor on one side of said propeller shaft;

a final drive unit which is connected to the rear end of said propeller shaft; and

an oil cooler for said final drive unit, said oil cooler being disposed under said vehicle floor on the opposite side of said propeller shaft from the exhaust system and being supported by said rear elevated portion.

2. An arrangement as claimed in claim 1, wherein said oil cooler is disposed forward of said final drive unit.

3. An arrangement for an oil cooler of a vehicle comprising:

a rear seat;

a vehicle floor having a front floor panel, a rear floor panel having an elevated portion on which said rear seat is installed, and a rear seat cross member; and

an oil cooler for a final drive unit, said oil cooler being disposed under said vehicle floor and supported by said elevated portion of said rear floor panel,

said rear seat cross member being disposed under a front end of said rear floor panel and having an inclined wall which is inclined with respect to said front floor panel and which is directed toward an upper end of said oil cooler.

4. An oil cooler arrangement for a vehicle comprising:

a rear seat;

a vehicle floor having a front floor panel, a rear floor panel jointed to said front floor panel and having an elevated portion on which said rear seat is installed, and a rear seat cross member; and

an oil cooler for a final drive unit, said oil cooler being disposed under said vehicle floor and being supported by said elevated portion of said rear floor panel,

said rear seat cross member being disposed above a front end portion of said rear floor panel, said front floor panel having a rear end extension which extends rearwardly and upwardly with respect to said front floor panel from the joint between said front floor panel and said rear floor panel and which is directed toward an upper end of said oil cooler.

5. An oil cooler arrangement for a vehicle comprising:

a rear seat;

a vehicle floor having a rear elevated portion on which said rear seat is installed;

an oil cooler for a final drive unit; and

bracket means for installing said oil cooler on an underside of said rear elevated portion of said vehicle floor, said bracket means having a bracket and an air duct which cooperate to define a box-shaped section and house said oil cooler, said bracket being angled to have a first flat deflector wall extending forwardly and downwardly from said oil cooler and a second flat deflector wall extending forwardly and upwardly from a front end of said first flat deflector wall, said air duct having a bottom wall and a pair of side walls, said bottom wall extending forwardly from said oil cooler and slanting downwardly with an increasing slope as it extends forwards, each of said side walls having an upper edge the forward part of which is separated from said bracket and extends increasingly away from said bracket as it extends forwards.

6. An arrangement as claimed in claim 5 wherein said bracket is secured at the front and rear end thereof to said vehicle floor.