Vehicle Powertrain Coupling Arrangement with Integrated Feed Device
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Solution Overview
Problem
The existing coupling arrangement for vehicle powertrains with a clutch housing is complex and expensive to produce due to the input-side clutch unit carrier performing multiple functions, including feed and energy storage, which complicates manufacturing and increases costs.
Innovation Solution
The coupling arrangement separates the input-side clutch unit carrier and feed device as independent constructional units, allowing for optimized design and material selection, with the feed device being made from plastic or metal die-cast/sintered parts, and incorporating a driving arrangement for rotationally fixed connection, enabling efficient feed medium flow and cooling of clutch units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the input-side clutch unit carrier is designed to perform multiple functions (feed arrangement and energy storage), then the number of constructional units is reduced, but the manufacturing complexity and cost increase
Solution Approach 1:
The patent divides the previously integrated input-side clutch unit carrier into separate constructional units: the clutch unit carrier itself and an independently mounted feed device. This segmentation allows each component to be manufactured separately using optimal processes (e.g., injection molding for the feed device, metalworking for the carrier), reducing overall manufacturing complexity and cost while maintaining the multi-functional benefit of having fewer major assembly components.
2Ease of operation
If the input-side clutch unit carrier is made as a single complex component, then assembly is simplified, but production cost and complexity increase
Solution Approach 1:
The patent merges the feed device with the clutch unit carrier through a fixed rotational connection, creating an integrated feed arrangement that functions as a single operational unit during clutch engagement. This merging maintains assembly simplicity and operational efficiency while allowing the components to be manufactured separately, thus resolving the contradiction between assembly ease and manufacturing complexity.
3Ease of manufacture
If the feed device is made from plastic, then production cost is reduced and noise is minimized, but structural strength may be limited
Solution Approach 1:
The patent applies different material qualities to different functional requirements: the feed device is made from plastic (injection-molded) where low cost and low noise are critical, while the clutch unit carrier and friction elements use metal materials where strength and wear resistance are critical. This local quality differentiation resolves the contradiction by optimizing each component's material selection for its specific functional demands.
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 configuration ensures good through-flow and cooling of clutch units, reduces production complexity and costs, and prevents tolerance-induced bucking during clutch engagement, while maintaining a compact and efficient design.
Implementation Method 1
the feed device has flow passages which extend into corresponding cutouts of the input-side clutch unit carrier and/or pressing device
Implementation Method 2
where friction heat occurs during relative rotational movement
Implementation Method 3
the feed medium is made capable of intensively cooling the clutch units
Data Source
AI summary
A coupling arrangement for the powertrain of a vehicle with a clutch housing with a feed arrangement for feed medium contained in the clutch housing and with a clutch mechanism, wherein the clutch mechanism has input-side clutch units communicating with an input-side clutch unit carrier, output-side clutch units communicating with an output-side clutch unit carrier, and a pressing device through which an operative connection between the input-side clutch units and the output-side clutch units can be produced or cancelled, and wherein the input-side clutch unit carrier is part of the feed arrangement. The feed arrangement further has a feed device which is associated with the input-side clutch unit carrier and which is connected to the input-side clutch unit carrier and/or to the pressing device so as to be fixed with respect to relative rotation.