Integrated Casing Partition Walls for Oil Prevention

Solution Overview

Problem

Conventional driving force transmitting apparatuses face complications in machining, assembly, and parts management due to the need for a separate partition plate, leading to increased production costs and potential clearance issues that allow lubricant oil to invade communication paths.

Innovation Solution

The apparatus integrates first and second division casing members with integral partition walls, eliminating the need for a separate partition plate, allowing for simplified machining, assembly, and reduced production costs, while preventing lubricant oil from entering communication paths through the use of baffle walls and an opening port system.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a separate partition plate is used to prevent lubricant oil from flowing into the communication path, then the oil prevention function is improved, but the device complexity and production cost increase due to additional machining, assembly, and parts management

Engineering Contradiction:

Improveoil prevention functionVSAvoidparts management complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The partition plate is merged with the carrier as a single integrally formed component. The carrier body and partition plate are formed as one piece through die-casting, eliminating the need for separate manufacturing and assembly of the partition plate. This reduces parts management complexity while maintaining the oil prevention function.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The carrier is given multiple functions: it serves as both the structural support component and the oil prevention component through its integrally formed partition plate. This multi-functionality eliminates the need for a separate partition plate, reducing parts complexity while maintaining reliability.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Reliability

If a separate partition plate is used to prevent lubricant oil from flowing into the communication path, then the oil prevention function is improved, but production cost increases due to additional machining and assembly processes

Engineering Contradiction:

Improveoil prevention functionVSAvoidproduction cost

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The partition plate is merged with the carrier as a single integrally formed component. The carrier body and partition plate are formed as one piece through die-casting, eliminating the need for separate manufacturing and assembly of the partition plate. This reduces parts management complexity while maintaining the oil prevention function.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The carrier structure itself provides the oil prevention function through its integrally formed partition plate, eliminating the need for additional components. The single-component design performs both structural support and oil separation functions, reducing manufacturing steps and production costs.

Inventive Principle:

Principle #25Self-service

3Reliability

If a separate partition plate is used to prevent lubricant oil from flowing into the communication path, then the oil prevention function is improved, but clearance occurs between the partition plate, carrier and cover which is insufficient to prevent lubricant oil from invading the communication path

Engineering Contradiction:

Improveoil prevention functionVSAvoidclearance control

Core Design Contradiction:

ReliabilityVSManufacturing precision

Solution Approach 1:

The partition plate is merged with the carrier as a single integrally formed component. The carrier body and partition plate are formed as one piece through die-casting, eliminating the need for separate manufacturing and assembly of the partition plate. This reduces parts management complexity while maintaining the oil prevention function.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The partition plate is extracted from the list of separate components and integrated into the carrier structure. By making the partition plate an integral part of the carrier, the design eliminates clearance issues between separate components while maintaining the oil prevention function.

Inventive Principle:

Principle #2Taking out (Extraction)

Data Source

PatentUS8042431B2Driving force transmitting apparatus

Publication Date: 2011.10.25 GKN DRIVELINE TORQUE TECHNOLOGY KK

AI summary

A driving force transmitting apparatus is provided with a breather chamber. The breather chamber is defined by a first partition wall, a second partition wall, a third partition wall, an outer wall of a first division casing member and an outer wall of an second division casing. The first partition wall is integrally formed on the first division casing member and extending in a matching direction of the first and the second division casing members. The second partition wall is integrally formed on the second division casing member and extending in the matching direction. The third partition wall crosses the first partition wall and is apart from a common plane of first and second coupling surfaces in the matching direction.