Valve Seat Bore Sealant Applicator With Wiper-Guided Coverage

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Solution Overview

Problem

Conventional methods for applying sealant to valve seat bores in engines result in inconsistent application, excess material waste, and potential finger injuries due to manual spreading, prolonging the process and increasing costs.

Innovation Solution

An applicator designed for valve seat bores that evenly distributes semi-fluid sealant using a conduit system with outlets and wiper portions to prevent excess application and ensure consistent coverage, featuring a handle for easy handling and modular construction for efficient sealant distribution.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If sealant is applied directly to the surface using a syringe and spread manually, then the application process is simple, but the application is inconsistent and results in excess sealant being used and wasted time

Engineering Contradiction:
Improvesimplicity of application processVSAvoidconsistency of sealant application
Core Design Contradiction:
Ease of operationVSManufacturing precision

Solution Approach 1:

The applicator is segmented into distinct functional components: a body for holding sealant, a sealing portion for sealing against the bore wall, a wiper portion for distributing sealant, and a seat for positioning. This segmentation allows each component to perform its specific function optimally, ensuring consistent application while maintaining ease of operation through modular design

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The wiper portion acts as an intermediary between the sealant source and the target surface. Instead of applying sealant directly to the surface, the wiper portion receives sealant and mediates its distribution evenly across the sealing surface, eliminating inconsistency while preserving operational simplicity

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If manual spreading of sealant is performed, then the process is straightforward, but excess sealant is pushed onto surfaces where no sealant is desired and must be removed

Engineering Contradiction:
Improvestraightforwardness of processVSAvoidwaste of sealant material
Core Design Contradiction:
Ease of operationVSLoss of substance

Solution Approach 1:

The wiper portion is designed with specific local qualities - its width, thickness, and material properties are optimized for the specific task of distributing sealant only where needed. The wiper's dimensions are matched to the sealing surface geometry, ensuring sealant is applied locally and precisely without overflow onto adjacent surfaces

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The wiper portion performs self-service by automatically distributing sealant evenly as it is applied, without requiring manual intervention for spreading or cleanup. The design inherently prevents excess sealant from reaching areas where it is not needed, eliminating the waste associated with manual spreading and removal

Inventive Principle:
Principle #25Self-service

3Device complexity

If manual spreading of sealant is performed, then the process can be done with simple tools, but the process is prolonged due to removal of excess sealant and potential finger injuries

Engineering Contradiction:
Improvesimplicity of tools requiredVSAvoidspeed of sealant application
Core Design Contradiction:
Device complexityVSProductivity

Solution Approach 1:

The applicator merges multiple functions into a single integrated tool: sealant delivery, surface sealing, and even distribution are combined in one device. This eliminates the need for separate manual spreading operations and cleanup steps, significantly improving productivity while maintaining operational simplicity through unified design

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The design converts the potential harm of excess sealant into a benefit by using the wiper portion to control and limit sealant flow. What could be harmful (excess sealant) is transformed into a controlled distribution mechanism, preventing waste and injury while speeding up the process

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

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

The applicator ensures precise and efficient sealant application, reducing material waste and time consumption while minimizing the risk of injury, allowing for faster and more controlled application to multiple bores.

Implementation Method 1

A sealing portion extends radially outwardly from the body portion for sealing abutment with the valve seat bore

Methodology Applied
Scientific EffectSealing:

Implementation Method 2

A wiper portion extends radially outwardly from the body portion and narrower in diameter than the sealing portion

Methodology Applied
Scientific EffectFriction: Friction

Implementation Method 3

A conduit extends through the body portion and the sealing portion to the circumferential groove. At least one outlet extends from the conduit to the circumferential groove

Methodology Applied
Scientific EffectFluid flow through conduit:

Implementation Method 4

A seat extends radially inwardly from the wiper portion for sealing cooperation with a first reduced-diameter wall portion of the valve seat bore

Methodology Applied
Scientific EffectSealing:

Data Source

PatentUS20250389212A1Applicator for semi-fluid materials
Publication Date: 2025.12.25 INNIO WAUKESHA GAS ENGINES INC
  • US20250389212A1 patent drawing
  • US20250389212A1 patent drawing
  • US20250389212A1 patent drawing

AI summary

An applicator is positionable within a valve seat bore of an engine and includes a body portion. A sealing portion extends radially outwardly from the body portion for sealing abutment with the bore. A wiper portion extends radially outwardly from the body portion and narrower in diameter than the sealing portion. A circumferential groove may be between the sealing portion and the wiper portion and recessed relative to the wiper portion. A seat extends radially inwardly from the wiper portion for sealing cooperation with a first reduced-diameter wall portion of the bore. A conduit extends through the body portion and the sealing portion to the circumferential groove. A sealant-receiving cavity extending circumferentially about the circumferential groove may be defined between the sealing portion, the seat and a wall of the bore when the applicator is positioned within the bore.