Integrated Motor Cooling Channels to Eliminate Separate Sleeves

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Solution Overview

Problem

Existing rotary mechanical systems, such as electric motors and compressors, require a separate cooling sleeve that adds time and cost to assembly and increases housing size, necessitating an integrated cooling solution.

Innovation Solution

The housing of the rotary mechanical system is machined to include cooling channels for fluid flow, eliminating the need for a separate cooling sleeve, thereby reducing assembly time and size.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If a separate cooling sleeve is used, then cooling function is provided, but assembly time increases and housing size increases

Engineering Contradiction:

Improvemotor coolingVSAvoidassembly time

Core Design Contradiction:

TemperatureVSLoss of time

Solution Approach 1:

The cooling channels are integrated directly into the housing structure, merging the housing and cooling sleeve into a single component. This eliminates the need for separate assembly of a cooling sleeve, thereby reducing assembly time while maintaining the cooling function through refrigerant flow through the integrated channels.

Inventive Principle:

Principle #5Merging (Combining)

2Temperature

If a separate cooling sleeve is used, then cooling function is provided, but housing size increases

Engineering Contradiction:

Improvemotor coolingVSAvoidhousing size

Core Design Contradiction:

TemperatureVSVolume of stationary object

Solution Approach 1:

The cooling channels are formed as integral parts of the housing structure rather than as a separate sleeve component. This merging eliminates the additional volume required for a separate cooling sleeve while preserving the cooling functionality through the integrated channel network.

Inventive Principle:

Principle #5Merging (Combining)

3Productivity

If cooling channels are integrated into housing, then assembly time is reduced and size is reduced, but manufacturing complexity increases

Engineering Contradiction:

Improveassembly efficiencyVSAvoidhousing manufacturing

Core Design Contradiction:

ProductivityVSEase of manufacture

Solution Approach 1:

The housing is designed with segmented or modular features that allow the cooling channels to be formed through standard machining operations. The channels are integrated into the housing structure but can be manufactured using conventional machining processes, balancing manufacturing complexity with assembly efficiency gains.

Inventive Principle:

Principle #1Segmentation

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 integration saves time and reduces the overall size of the system while effectively cooling the motor components, enhancing operational efficiency and longevity.

Implementation Method 1

a plurality of cooling channels defined by a plurality of spaces between an external surface of the motor and an inner surface of the housing, wherein the plurality of cooling channels are configured to receive a refrigerant to cool the motor

Methodology Applied

Scientific EffectHeat transfer: Conduction (thermal)

Data Source

PatentUS20250300526A1Integrated two phase cooling sleeve

Publication Date: 2025.09.25 HONEYWELL INTERNATIONAL INC

AI summary

In some examples, a rotary mechanical system, includes a motor, a housing, and a plurality of cooling channels. The housing at least partially encloses one or more components of the motor. The plurality of cooling channels are defined by a plurality of spaces between an external surface of the motor and an inner surface of the housing, and are configured to receive a refrigerant to cool the motor.