Torque Converter Housing Gap for Compact Transmission Oil Flow
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Solution Overview
Problem
Existing motor vehicle transmissions with torque converters require excessive radial installation space due to the presence of a base of the oil guide device between the housing wall and the torque converter.
Innovation Solution
The motor vehicle transmission design eliminates the base of the oil guide device by using a housing wall with an inner surface that defines a gap with the torque converter's outer surface for oil conveyance, incorporating separate oil guide devices at the axial and radial sides to manage oil flow efficiently, reducing radial installation space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a base of the oil guide device is arranged between the housing wall and the torque converter, then oil guidance function is improved, but radial installation space increases
Solution Approach 1:
The base of the oil guide device is extracted and eliminated from the design. Instead of having a separate base component between the housing wall and torque converter, the housing wall's inner surface is directly designed to define the oil conveyance gap with the torque converter outer surface, achieving oil guidance without the additional radial space requirement
Solution Approach 2:
The oil guidance function previously performed by the separate base component is merged into the housing wall structure itself. The housing wall's inner surface is designed to directly define the gap for oil conveyance, combining the housing and oil guidance functions into a single integrated structure, thereby eliminating the need for additional radial installation space
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design reduces the radial installation space requirement by optimizing oil flow without the need for a separate base, allowing for a more compact transmission layout.
Implementation Method 1
a gap defined by an inner surface of a housing wall of the transmission housing and an outer surface of the torque converter, which is configured to convey oil from a first area of the motor vehicle transmission into a second area of the motor vehicle transmission during a rotary movement of the torque converter
Data Source
AI summary
A motor vehicle transmission (1) includes a transmission housing (2) with torque converter (4) accommodated in the transmission housing (2) and a first oil guide device (9) positioned at an axial side of the torque converter (4). A housing wall (11) of the transmission housing (2) encloses the torque converter (4) radially outwardly at least in sections and has an inner surface (17) with an inner diameter configured such that a gap (13) defined by the inner surface (17) of the housing wall (11) and an outer surface (39) of the torque converter (4) is configured to convey oil from a first area (15) of the motor vehicle transmission (1) into a second area (16) of the motor vehicle transmission (1) during a rotary movement of the torque converter (4). The second area (16) is arranged above the first area (15) in an installed position of the motor vehicle transmission (1).