Motor Vehicle Pump Mounting with Castellated Support Body
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Solution Overview
Problem
Existing motor vehicle pump arrangements face challenges in reliably mounting the pumping unit with different rotational orientations relative to the motor vehicle mounting structure and require complex assembly processes, with existing solutions either limiting rotational flexibility or necessitating structural adaptations.
Innovation Solution
A motor vehicle pump arrangement featuring a cylindrical pumping unit with radially protruding support protrusions and a ring-shaped pump support body with a castellated structure, allowing for multiple defined rotational orientations without structural adaptation, and utilizing a vibration-decoupling body made of elastic materials for efficient vibration suppression.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the pump support body is made flexible to provide efficient vibrational decoupling, then vibration isolation is improved, but the force-locked connection can only support limited forces and torque
Solution Approach 1:
The support function is divided into two independent parts: the flexible pump support body for vibration isolation and the separate support protrusions for force support. This segmentation allows each component to be optimized for its specific function without compromise.
Solution Approach 2:
The support protrusions act as intermediary elements that transfer forces from the pumping unit to the pump support body, allowing the flexible body to maintain its vibration isolation properties while still supporting necessary forces through the rigid protrusions.
2Adaptability or versatility
If the pump support body is press-fitted to the pumping unit housing, then the pumping unit can be mounted with different rotational orientations, but the pump support body must be mounted during assembly causing complex assembly process
Solution Approach 1:
The mounting system is segmented into the pump support body and separate support protrusions that attach to the housing. This allows the support body to be installed independently on the mounting structure, separating the mounting operation from the pump assembly process.
Solution Approach 2:
The pump support body is pre-mounted to the mounting structure before the pumping unit is assembled. The support protrusions are then attached to the assembled pump housing and engaged with the pre-installed support body, allowing the pump to be mounted in different rotational orientations without complicating the pump assembly process.
3Strength
If screw joints or adhesive bonding are used to fix the pump support body to the pumping unit, then the support connection is strong, but additional fixation elements and complex mounting process are required
Solution Approach 1:
The fixation function is extracted from the pump support body and transferred to separate support protrusions that are integrally formed with or separately attached to the pumping unit housing. This eliminates the need for additional fixation elements on the support body itself and simplifies the mounting process.
Solution Approach 2:
The support and fixation functions are merged into the support protrusions, which simultaneously provide structural support and secure attachment. The protrusions are designed to engage with corresponding receptacles in the pump support body, providing both functions through a single integrated component.
4Strength
If screw joints are used to attach the pump support body, then strong fixation is achieved, but rotational orientation flexibility is lost without structural adaptation
Solution Approach 1:
The support protrusions are asymmetrically positioned on the pump housing, while the pump support body contains multiple asymmetrically positioned receptacles. This asymmetric design allows the pump to be mounted in specific rotational orientations by matching the protrusions with corresponding receptacles, providing both strong fixation and orientation flexibility.
Solution Approach 2:
The mounting system transitions from a fixed, rigid connection to a dynamic, multi-orientation system. The support protrusions can engage with different receptacles on the pump support body, allowing the pump to be dynamically positioned in various rotational orientations while maintaining strong fixation through the engagement of protrusions and receptacles.
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
Enables reliable and adaptable mounting of the pumping unit with various rotational orientations while simplifying the assembly process and minimizing vibration transfer, thereby enhancing the pumping unit's stability and reducing noise and failure probabilities.
Implementation Method 1
the pump support body is provided with a vibration-decoupling body made of a relatively soft and elastic material... the pump support body radially surrounds and supports the pumping unit... efficient vibration suppression
Implementation Method 2
the pump support body is provided with a vibration-decoupling body made of a relatively soft and elastic material
Data Source
Figure 1~2
Figure 3
AI summary
Motor vehicle pump arrangement (10), with -a pumping unit(12)with - a substantially cylindrical pumping unit housing (16) and - at least one support protrusion (22) radially protruding from the pumping unit housing (16), and -a mounting arrangement (14) for mounting the pumping unit (12) to a corresponding motor vehicle mounting structure (15), the mounting arrangement (14) comprising - a ring-shaped pump support body(28) radially surrounding and supporting the pumping unit (12) and being attachable to the motor vehicle mounting structure (15), - wherein an axial side of the pump support body (28) is provided with a castellated structure (38) comprising several axially extending merlons (40) and defining several protrusion receptacles (42) between the merlons (40), and - wherein the at least one support protrusion (22) of the pumping unit housing (16) engages at least one protrusion receptacle (42). The proposed motor vehicle pump arrangement(10)allows reliably mounting the pumping unit (12) with different rotational orientations with respect to the motor vehicle mounting structure (15) and can be assembled in a simple way.