Integrated Electronic Hydraulic Pump With Coolant Routing and Noise Control

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Solution Overview

Problem

The transition to electric propulsion in the automobile industry requires an efficient and environmentally friendly solution for hydraulic fluid flow in vehicles, particularly for steering and braking, as conventional mechanical pumps are less reliable and less energy-efficient.

Innovation Solution

A system comprising a motor with integrated hydraulic pump and coolant lines, where the hydraulic pump is positioned proximate to the motor with coolant lines running along both the outside and inside peripheries, and an insulating material is used to reduce noise and maintain operational efficiency within a controlled temperature range, with electronic connectivity for precise control.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional mechanical pumps are used for hydraulic fluid flow, then the system structure is simple, but the reliability and energy efficiency are reduced

Engineering Contradiction:
ImprovereliabilityVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines the electric motor and hydraulic pump into a single integrated assembly, where the motor drives the pump through direct coupling. This merging of functions improves reliability by eliminating mechanical transmission components while maintaining a compact design that does not significantly increase device complexity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent replaces conventional mechanical pump systems with an electrically-driven pump system. The electric motor substitutes for traditional mechanical drive mechanisms, improving energy efficiency and reliability while reducing mechanical wear and maintenance requirements.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Use of energy by moving object

If conventional mechanical pumps are used, then the device complexity is low, but the energy efficiency is reduced

Engineering Contradiction:
Improveenergy efficiencyVSAvoiddevice complexity
Core Design Contradiction:
Use of energy by moving objectVSDevice complexity

Solution Approach 1:

The patent replaces mechanical pump drive systems with an electric motor-driven system, enabling precise control of energy consumption. The electric motor provides variable speed control and optimized energy efficiency compared to conventional mechanical systems, while the integrated design keeps overall complexity manageable.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Volume of moving object

If the hydraulic pump is positioned proximate to the motor, then the system compactness is improved, but the heat generation and noise increase

Engineering Contradiction:
Improvesystem volumeVSAvoidheat and noise
Core Design Contradiction:
Volume of moving objectVSObject-affected harmful factors

Solution Approach 1:

The patent extracts the coolant lines as separate, dedicated pathways that route around the motor and pump assembly. This allows the pump to be positioned close to the motor for compactness while the coolant system independently manages heat and noise by circulating through designated channels along the outside and inside peripheries.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent introduces coolant as an intermediary substance that absorbs heat and reduces noise generated by the closely positioned motor and pump. The coolant lines act as intermediary pathways that facilitate thermal management and noise reduction without increasing the compact assembly's volume.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Temperature

If coolant lines are positioned along both outside and inside peripheries of the motor, then the temperature control is improved, but the device complexity increases

Engineering Contradiction:
Improvetemperature controlVSAvoiddevice complexity
Core Design Contradiction:
TemperatureVSDevice complexity

Solution Approach 1:

The patent implements local quality by positioning coolant lines in specific locations - along the outside periphery and inside periphery of the motor - to optimize temperature control in different thermal zones. This targeted approach provides effective temperature management while minimizing the overall coolant system complexity.

Inventive Principle:
Principle #3Local quality

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 enhances the reliability, efficiency, and environmental sustainability of hydraulic fluid flow in vehicles, enabling precise control and reduced noise, while maintaining operational efficiency within specified temperature limits.

Implementation Method 1

a first coolant line defining a fluid pathway for coolant around the motor, wherein a first segment of the first coolant line is positioned along the outside periphery of the motor and a second segment of the first coolant line is positioned along the interior of the motor

Methodology Applied
Scientific EffectHeat dissipation through fluid circulation: Convection

Implementation Method 2

an insulating material is used to reduce noise and maintain operational efficiency within a controlled temperature range

Methodology Applied
Scientific EffectSound absorption: Acoustic Absorption

Data Source

PatentUS11988234B2Electronic pump and methods of using the same
Publication Date: 2024.05.21 NOTT CO
  • US11988234B2 patent drawing
  • US11988234B2 patent drawing
  • US11988234B2 patent drawing

AI summary

The disclosure relates to an electronic pump that can be used in a motor vehicle, particularly for generating hydraulic fluid flow for steering and braking, or to perform auxiliary functions such as dump bodies for garbage trucks or landscape trucks. Methods of operating the system and manufacturing the system are also provided.