Rotating Shaft Pump Layout for Flexible Vehicle Mounting
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Solution Overview
Problem
Existing vehicle driving apparatuses lack versatility in accommodating different mounting postures and attachment spaces across various vehicle types, limiting their applicability.
Innovation Solution
A vehicle driving apparatus comprising a power source, rotating shaft, fluid pump, and housing, where the fluid pump is designed with a rotor and case configuration that allows for flexible attachment and operation across different vehicle orientations, ensuring the discharge port and supply groove alignment regardless of the vehicle's mounting posture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the fluid pump is designed with fixed attachment configuration, then the manufacturing and assembly are simplified, but the adaptability to different vehicle types and mounting postures is reduced
Solution Approach 1:
The pump device is designed with a universal attachment mechanism where the attachment portion can be positioned on both sides of the supply groove in the axial direction. This allows the same pump device to be adapted to different vehicle types and mounting postures by changing the attachment orientation, enabling one device to serve multiple functions and applications without requiring design modifications.
2Productivity
If the discharge port and supply groove alignment is maintained across different orientations, then the fluid flow efficiency is preserved, but the structural design complexity increases
Solution Approach 1:
The attachment portion is designed with an asymmetric configuration relative to the supply groove, allowing it to be positioned on either side of the groove in the axial direction. This asymmetric design enables the discharge port to align with the supply groove in different orientations while maintaining proper fluid flow, without requiring complex alignment mechanisms.
3Ease of manufacture
If the pump device is designed for a specific mounting posture, then the design and manufacturing are simplified, but the versatility across different vehicle applications is limited
Solution Approach 1:
The pump device incorporates a dynamic attachment capability where the attachment portion can be oriented in different directions along the axial axis. This dynamic design feature allows the same manufactured component to be installed in various mounting postures and orientations, providing versatility across different vehicle applications without requiring multiple specialized designs or manufacturing processes.
Data Source
AI summary
A vehicle driving apparatus includes a rotating shaft driven by the power source, a fluid pump driven by the rotating shaft. The fluid pump includes a rotor rotated by the rotating shaft, and a case. The case includes a fluid discharge port provided on an inner peripheral surface of an insertion hole through which the rotating shaft is inserted. The rotating shaft includes an attachment portion fittable to a shaft hole, and an internal flow path. A supply groove communicating with the internal flow path is provided on an outer peripheral surface of the rotating shaft. The fluid pump is attached to the attachment portion of the rotating shaft such that positions of the discharge port and the supply groove in an axial direction of the rotating shaft overlap each other. The attachment portion is provided on each of both sides of the supply groove in the axial direction.