Injector Ring Mounting Device with Lever Actuation

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Solution Overview

Problem

Existing mounting devices for rings on cylindrical injectors are cumbersome and energy-intensive, often leading to uneven force application and accidental ring displacement during assembly, particularly when dealing with injectors and rings of varying diameters.

Innovation Solution

A mounting device featuring a hollow tube with a pusher member and a lever-shaped actuating element, along with a conical mounting element and interchangeable sleeves, allows for simple, energy-efficient mounting of rings on injectors by ensuring even force distribution and preventing accidental displacement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a traditional mounting device is used to mount a ring on an injector, then the ring can be mounted, but the device is cumbersome and energy-intensive

Engineering Contradiction:
Improveease of mountingVSAvoiddevice complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The mounting device is segmented into a hollow tube, a pusher member, and an actuating element that can be independently assembled and disassembled. This modular structure reduces overall device complexity while maintaining mounting functionality, allowing each component to perform its specific function efficiently.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention extracts the essential mounting function from complex traditional devices, retaining only the critical components (hollow tube, pusher member, actuating element) needed to mount the ring. This simplification reduces device complexity while preserving the core mounting capability.

Inventive Principle:
Principle #2Taking out (Extraction)

2Ease of operation

If a traditional mounting device is used to mount a ring on an injector, then the ring can be mounted, but it consumes excessive energy

Engineering Contradiction:
Improveease of mountingVSAvoidenergy consumption
Core Design Contradiction:
Ease of operationVSUse of energy by moving object

Solution Approach 1:

The pusher member acts as an intermediary between the actuating element and the ring. It translates the actuating element's motion into controlled linear movement that pushes the ring onto the injector, reducing the direct energy required from the operator while maintaining effective mounting force.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The invention replaces direct manual mechanical force with a mechanical advantage system using the actuating element and pusher member. This substitution reduces the energy input required from the operator while achieving the same mounting result.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Manufacturing precision

If force is applied to mount the ring, then the ring can be positioned, but uneven force application causes deformation or tilting

Engineering Contradiction:
Improveplacement precisionVSAvoidforce application
Core Design Contradiction:
Manufacturing precisionVSEase of operation

Solution Approach 1:

The pusher member is designed to distribute force locally and uniformly across the ring's surface. This localized uniform force application prevents deformation and tilting while achieving precise placement, resolving the contradiction between placement precision and ease of force application.

Inventive Principle:
Principle #3Local quality

4Manufacturing precision

If the mounting device is fixed for specific diameters, then it can provide precise mounting, but it cannot adapt to injectors and rings of different diameters

Engineering Contradiction:
Improvemounting precisionVSAvoidadaptability to different diameters
Core Design Contradiction:
Manufacturing precisionVSAdaptability or versatility

Solution Approach 1:

The hollow tube and pusher member are designed with dynamic adjustability, allowing the device to adapt to different injector and ring diameters. This dynamic configuration maintains mounting precision across various sizes while providing versatility, resolving the contradiction between precision and adaptability.

Inventive Principle:
Principle #15Dynamics

5Ease of operation

If the actuating element can be freely actuated, then operation is simple, but accidental actuation can cause the ring to fly off uncontrollably

Engineering Contradiction:
Improveoperation simplicityVSAvoidsafety against accidental displacement
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The device incorporates a preliminary safety mechanism that prevents accidental actuation before the ring is properly positioned. This preliminary anti-action ensures safety while maintaining operational simplicity, resolving the contradiction between ease of operation and reliability.

Inventive Principle:
Principle #9Preliminary anti-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

Facilitates easy and secure mounting of rings on injectors with reduced energy consumption and adaptability to different diameters, ensuring precise placement and preventing ring deformation or unintended movement.

Implementation Method 1

the actuating element is designed as a lever-shaped actuating element. With the help of a lever-shaped actuating element, the pushing element can be moved in a particularly energy-saving manner by using the leverage effect.

Methodology Applied
Scientific EffectLeverage effect: Lever

Data Source

PatentEP3109004B1Mounting device
Publication Date: 2018.03.28 ROBERT BOSCH GMBH
  • EP3109004B1 patent drawingFigure 1
  • EP3109004B1 patent drawingFigure 2
  • EP3109004B1 patent drawingFigure 3

AI summary

A mounting device (15) for mounting a ring (24) on a cylindrical region of an injector (20) comprises: a hollow tube (6) extending along a longitudinal axis (A) with an inner diameter (di) that allows a cylindrical region (22) of an injector (20) to be arranged in the tube (6); and an outer diameter (da) that allows a ring (24) to be mounted to be arranged on the circumference of the tube (6); a sliding element (3) displaceable along the longitudinal axis (A) and configured to displace a ring (24) to be mounted, arranged on the circumference of the tube (6), parallel to the longitudinal axis (A); and an actuating element (4) configured such that the sliding element (3) is displaceable along the longitudinal axis (A) by actuating the actuating element (4).