Solid Plate Rotor with Y-Shaped Seal for Rotary Cylinder

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Solution Overview

Problem

Conventional rotary cylinder rotors face issues with incomplete resilient coating due to material flow into hollow bodies and complex assembly with multiple parts, leading to inefficient sealing and durability problems.

Innovation Solution

A rotor design featuring a solid plate with a curved outer periphery and recessed areas, coated with a resilient material forming a Y-shaped seal portion, eliminating the need for a hollow body and simplifying the coating process, with tapered lips for enhanced sealing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of substance

If a hollow body is used to save material, then material usage is reduced, but resilient coating material flows into the interior causing incomplete coating

Engineering Contradiction:
Improvematerial usageVSAvoidcoating completeness
Core Design Contradiction:
Loss of substanceVSManufacturing precision

Solution Approach 1:

The invention inverts the conventional hollow body structure by using a solid plate structure. This inversion prevents the resilient coating material from flowing into an interior cavity, ensuring complete and uniform coating coverage while maintaining material efficiency through the optimized solid plate geometry with integrated sealing features.

Inventive Principle:
Principle #13The other way round (Inversion)

Solution Approach 2:

The invention merges the plate structure with integrated sealing lips and recessed areas into a single solid plate component. This consolidation eliminates the need for separate hollow body structures and internal sealing components, preventing coating material infiltration while maintaining structural integrity and coating completeness.

Inventive Principle:
Principle #5Merging (Combining)

2Reliability

If multiple small parts are used for resilient members and covers, then sealing function is improved, but assembly difficulty increases

Engineering Contradiction:
Improvesealing functionVSAvoidassembly difficulty
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The invention combines multiple separate components (plate, resilient members, covers, and sealing structures) into a single integrated solid plate structure. The sealing lips are directly formed as part of the plate with recessed areas, eliminating the need for separate resilient members and covers, thus maintaining sealing reliability while dramatically simplifying assembly to a single piece rotor.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The solid plate structure performs multiple functions simultaneously: it provides the rotor body structure, contains the sealing lips, incorporates the recessed areas for resilient material, and eliminates the need for separate covers. This multi-functionality reduces the number of parts while maintaining or improving sealing performance.

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

3Reliability

If resilient coat thickness is increased for better sealing, then sealing efficiency is improved, but material consumption increases

Engineering Contradiction:
Improvesealing efficiencyVSAvoidresilient material consumption
Core Design Contradiction:
ReliabilityVSLoss of substance

Solution Approach 1:

The invention applies local quality by concentrating the resilient coating material specifically in the recessed areas where sealing is most critical. The sealing lips are formed with tapered faces that direct pressure to enhance sealing at the contact points, allowing for thicker resilient material only where needed for effective sealing while keeping other areas more economical.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The recessed areas are pre-formed in the solid plate structure to guide and contain the resilient coating material during the coating process. This preliminary structuring ensures that the resilient material is deposited precisely where needed for sealing, preventing material waste while achieving the required sealing thickness in critical areas.

Inventive Principle:
Principle #10Preliminary action

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 solution ensures complete and thicker resilient coating, improving the rotor's sealing efficiency and durability by preventing material flow and streamlining assembly, while the tapered faces enhance contact with the cylinder interior for better sealing.

Implementation Method 1

the resilient material of the resilient coat 932 can easily flow into the space 937 via gaps between the side panel 937 and the open side of the body 931

Methodology Applied
Scientific EffectMaterial flow:

Implementation Method 2

each lip 934 is supported by a resilient member 936 which is located in a recess 935 located at a distance from the lip 934, such that the resilient members 936 push the two lips 934 toward the inside of the cylinder 91

Methodology Applied
Scientific EffectElastic force: Elasticity

Implementation Method 3

Each lip has a tapered face which is applied by the pressure in the cylinder so as to further seal the inside of the cylinder

Methodology Applied
Scientific EffectPressure: Pressure Increase

Data Source

PatentUS9995142B2Rotor of a rotary cylinder
Publication Date: 2018.06.12 LU PEI CHEN
  • US9995142B2 patent drawing
  • US9995142B2 patent drawing
  • US9995142B2 patent drawing

AI summary

A rotor for a rotary cylinder includes a body having a tube and a plate which has the first end integrally formed to the tube, and the second end of the plate extends radially relative to the tube. The plate is a solid plate and has a curved outer periphery. A first recessed area is defined in each of the top and the bottom of the plate. A waist is formed to the plate and located between the first and second ends of the plate. A resilient coat is coated to the body and includes a Y-shaped seal portion along the curved outer periphery of the plate so as to be movably in contact with the inside of the cylinder.