Clutch Actuator Mounting Structure with Exposed Port

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

The existing structure for mounting a clutch actuator in internal combustion engines requires dismounting the engine case for maintenance, which is inefficient and complicates the process.

Innovation Solution

A clutch actuator mounting structure where the clutch actuator is contained within the engine case and has an exposed mounting/dismounting port, allowing for maintenance without dismounting the engine case, and is integrated with an oil filter housing to optimize space and maintainability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If the clutch actuator is mounted inside the engine case, then the clutch actuator is protected from external factors, but maintenance requires dismounting the engine case which reduces workability

Engineering Contradiction:
Improveprotection from external factorsVSAvoidworkability during maintenance
Core Design Contradiction:
Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The engine case is segmented into a main body and a removable cover portion. The clutch actuator is mounted inside the engine case but remains accessible through the removable cover, which can be detached to allow maintenance without removing the entire engine case. This segmentation resolves the contradiction by providing both protection (through the cover) and accessibility (through removable access).

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A removable cover acts as an intermediary element between the clutch actuator and the external environment. This cover provides protection when installed while allowing easy access when removed, thus mediating between the need for protection and the need for maintenance accessibility without requiring full engine case disassembly.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Volume of moving object

If the clutch actuator containing part is integrated into the engine case, then the overall engine size is reduced, but maintenance complexity increases

Engineering Contradiction:
Improveengine sizeVSAvoidmaintenance complexity
Core Design Contradiction:
Volume of moving objectVSDevice complexity

Solution Approach 1:

The clutch actuator containing part is integrated into the engine case as a unified structure, reducing overall engine size. However, the containing part is designed with a removable cover that segments the access path, allowing maintenance personnel to access the clutch actuator without disassembling the entire engine case, thus reducing maintenance complexity despite the integrated design.

Inventive Principle:
Principle #1Segmentation

3Ease of operation

If the clutch actuator is accessible from the exterior, then maintenance workability is improved, but the clutch actuator is exposed to external factors

Engineering Contradiction:
Improvemaintenance workabilityVSAvoidexposure to external factors
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

A removable cover serves as an intermediary that can be removed during maintenance to provide exterior access to the clutch actuator, improving workability. When installed, this same cover protects the clutch actuator from external factors. The intermediary element thus provides both protection and accessibility at different times.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The cover configuration is dynamic rather than fixed - it can be installed to provide protection during normal operation and removed to provide access during maintenance. This dynamic configuration allows the system to adapt between the two opposing requirements of protection and accessibility based on operational context.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP2369193B1Clutch actuator mounting structure for internal combustion engine
Publication Date: 2017.06.28 HONDA MOTOR CO LTD
  • EP2369193B1 patent drawingFigure 1
  • EP2369193B1 patent drawingFigure 2
  • EP2369193B1 patent drawingFigure 3

AI summary

To provide a clutch actuator mounting structure for internal combustion engine (E) which has excellent maintainability such that clutch actuator maintenance and the like can be carried out without dismounting an engine case. The clutch actuator mounting structure for an internal combustion engine (E) having, in the engine case (70, 31R), a power transmission mechanism designed to transmit rotational power of a crankshaft (30) to an output shaft (37) through a shift clutch (41) and a transmission (T), wherein the engine case is formed with a clutch actuator containing part (72) in which a clutch actuator (81A, 81B) for engaging/disengaging the shift clutch (41) is contained, and the clutch actuator containing part (72) has a clutch actuator mounting/dismounting port (72h) through which to mount and dismount the clutch actuator (81A, 81B), the clutch actuator mounting/dismounting port (72h) being formed to be exposed to the exterior.