One-Piece Valve Flow Body for Dry Fluid Coupling

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Solution Overview

Problem

Dry clutches with multi-part valve bodies have a clumsy, bulky design that impairs fluid flow and increases refueling time, making assembly and disassembly cumbersome and prone to damage.

Innovation Solution

A one-piece valve flow body design with a guide radial bearing that allows uninterrupted axial sliding, eliminating separate transverse and assembly elements, and optimizing the flow profile for enhanced fluid flow and assembly efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a multi-part valve body design is used, then assembly flexibility is improved, but device complexity increases and fluid flow is impaired

Engineering Contradiction:
Improveassembly flexibilityVSAvoidvalve assembly complexity
Core Design Contradiction:
Ease of manufactureVSDevice complexity

Solution Approach 1:

The patent merges the valve head, valve stem section, and valve base into a single-piece valve flow body. This integration eliminates the need for separate transverse connections and multiple assembly steps, thereby reducing device complexity while maintaining manufacturing feasibility through optimized flow profile design

Inventive Principle:
Principle #5Merging (Combining)

2Ease of manufacture

If a multi-part valve body design is used, then assembly flexibility is improved, but fluid flow capacity decreases

Engineering Contradiction:
Improveassembly flexibilityVSAvoidfluid flow capacity
Core Design Contradiction:
Ease of manufactureVSProductivity

Solution Approach 1:

The single-piece valve flow body eliminates interruptions in the fluid flow path that occur with multi-part designs. The integrated structure removes transverse connections and multiple joints, creating an uninterrupted flow profile that significantly improves fluid flow capacity and refueling time

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The valve flow body incorporates optimized curved flow profiles that guide fluid smoothly through the valve assembly. The streamlined geometry reduces turbulence and flow resistance, maximizing fluid flow capacity while maintaining a compact design

Inventive Principle:
Principle #14Spheroidality (Curvature)

3Ease of manufacture

If separate transverse connection elements are used, then assembly flexibility is improved, but the design becomes bulky and refueling time increases

Engineering Contradiction:
Improveassembly flexibilityVSAvoidrefueling time
Core Design Contradiction:
Ease of manufactureVSLoss of time

Solution Approach 1:

The patent eliminates separate transverse connection elements by integrating the valve stem section directly into the valve flow body. This removal of unnecessary components reduces the overall assembly size and eliminates flow path interruptions, thereby significantly reducing refueling time

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The invention extracts and removes unnecessary transverse connection elements from the valve assembly. By eliminating these redundant components, the design achieves a more compact structure with improved fluid flow characteristics and reduced refueling time

Inventive Principle:
Principle #2Taking out (Extraction)

4Productivity

If a one-piece valve flow body is used, then fluid flow is optimized, but assembly precision requirements increase

Engineering Contradiction:
Improvefluid flow capacityVSAvoidassembly precision
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The single-piece construction eliminates multiple assembly interfaces, thereby reducing cumulative tolerance errors and precision requirements. The integrated valve flow body ensures consistent manufacturing quality while optimizing fluid flow through streamlined geometry

Inventive Principle:
Principle #5Merging (Combining)

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 one-piece valve flow body design significantly improves fluid flow capacity, reduces refueling time, and simplifies assembly/disassembly, minimizing the risk of damage and maintaining an undisturbed flow profile.

Implementation Method 1

a guide radial bearing which connects and axially separates the valve head and the valve base, wherein the guide seat ring can be set into a locking position secured against rotation about the receiving part axis for coupling

Methodology Applied
Scientific EffectRadial bearing: Ball Bearing

Data Source

PatentEP3230645B1Dry-coupling receiving part of a dry coupling for fluid and dry coupling for fluid established therewith
Publication Date: 2019.04.03 ROMAN SELIGER
  • EP3230645B1 patent drawingFigure 1A
  • EP3230645B1 patent drawingFigure 1B
  • EP3230645B1 patent drawingFigure 2A

AI summary

The invention relates to a dry-coupling receiving part (6) of a dry coupling (100) for fluid, the receiving part comprising: a receiving-part housing (61); a valve device (1) arranged in the receiving-part housing (61) and having a guide seat ring (2) and a valve body (3), around the exterior of which fluid can flow; and a receiving-part control device (5), by means of which the valve body (3) can be moved into a valve opening position (402) and a valve closing position (401). The valve body (3) is radially mounted on the guide seat ring (2) by means of a guide radial bearing (25), such that said valve body can slide axially. The valve body (3) has a valve head (31), a valve base (32) lying outside the guide seat ring (2) and a valve stem part (33) mounted by means of the guide radial bearing (25). The valve body (3) is integrally formed, and the valve head (31), the valve stem part (33) and the valve base (32) form an integral valve flow body (36) with a flow profile that is uninterrupted and as a result unperturbedly uniform. A dry coupling (100) for fluid is formed by the dry-coupling receiving part (6) and a dry-coupling plug-in part (7) connected thereto, the latter comprising a plug-in part valve body (751) of a plug-in part valve (75). The integral valve flow body (36) and the plug-in-part valve body (751) rest against one another in an axially displaceable sliding union which can be brought out of valve closing positions (401, 701), against a restoring force, into valve opening positions (402, 702).