Work Vehicle Engine Mount Lateral Load Distribution

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Solution Overview

Problem

Existing engine mounting systems for work vehicles face challenges in distributing engine loads effectively, leading to stress concentrations at weld points, which can reduce the longevity of the mounts and increase the risk of failure.

Innovation Solution

The engine mounting system features an engine mount with a frame connection portion that extends laterally beyond the engine mounting portion, directing a substantial portion of the load through a laterally central weld area, reducing stress concentrations and enhancing longevity. This design includes a welded connection with a flat contact surface to engage the frame, minimizing additional structural support needs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If engine mounts use traditional mounting configurations, then the engine is supported on the frame, but stress concentrations occur at weld points reducing longevity

Engineering Contradiction:
Improvelongevity of engine mountsVSAvoidstress concentrations at weld points
Core Design Contradiction:
ReliabilityVSStress or pressure

Solution Approach 1:

The frame connection portion extends in the lateral dimension beyond the engine mounting portion, creating a wider load distribution area. This dimensional extension allows the mount to spread stresses laterally across a broader weld interface with the frame, reducing stress concentrations at any single weld point while maintaining vertical support function.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The engine mount is divided into distinct functional portions: an engine mounting portion with openings for fasteners and a frame connection portion with extended lateral dimensions. This segmentation allows each portion to be optimized independently - the mounting portion for secure engine attachment and the extended connection portion for distributed load transfer to the frame.

Inventive Principle:
Principle #1Segmentation

2Stress or pressure

If engine mounts are designed with extended frame connection portions, then load distribution is improved and stress concentrations are reduced, but the complexity of the mounting system increases

Engineering Contradiction:
Improveload distributionVSAvoidcomplexity of mounting system
Core Design Contradiction:
Stress or pressureVSDevice complexity

Solution Approach 1:

The engine mount integrates multiple functions into a single component: engine support, load transfer, and distributed stress management. The frame connection portion is merged with the mounting structure rather than being a separate element, allowing improved load distribution without proportionally increasing system complexity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The extended frame connection portion serves multiple purposes simultaneously: it provides a larger weld interface for stress distribution, maintains structural rigidity, and ensures proper alignment between the engine mount and frame. This multi-functionality achieves improved load distribution without requiring additional separate components.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS11345403B2Engine mounting system for a work vehicle
Publication Date: 2022.05.31 BLUE LEAF I P INC
  • US11345403B2 patent drawing
  • US11345403B2 patent drawing
  • US11345403B2 patent drawing

AI summary

An engine mounting system for a work vehicle includes an engine mount configured to support an engine on a frame of the work vehicle. The engine mount has an engine mounting portion and a frame connection portion, an extent of the frame connection portion along a lateral axis of the engine mount is greater than an extent of the engine mounting portion along the lateral axis, the engine mounting portion has an opening configured to receive a fastener configured to couple the engine to the engine mount, the frame connection portion has a substantially flat contact surface configured to engage a corresponding substantially flat contact surface of a frame member of the frame, and the engine mounting portion does not contact the frame member while the substantially flat contact surface of the frame connection portion is engaged with the corresponding substantially flat contact surface of the frame member.