Small Engine Starter Using Cordless Battery
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Solution Overview
Problem
Existing starter devices for small engines do not provide a convenient and efficient method for starting engines without a pull start mechanism, and they lack the ability to utilize a cordless power tool battery for power.
Innovation Solution
A starter device that includes a flywheel gear attachable to a small engine in place of a pull start mechanism, and a starter that surrounds the flywheel gear, powered by a cordless power tool battery, allowing for easy actuation to start the engine.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a pull start mechanism is used to start a small engine, then the engine can be started manually, but the starting process requires significant user effort and is not convenient
Solution Approach 1:
The patent replaces the manual pull-start mechanical system with an electric starter system. The electric starter motor receives electrical power from a battery and automatically cranks the engine, eliminating the need for manual pulling and significantly reducing user effort while improving ease of operation.
Solution Approach 2:
The patent introduces a battery as an intermediary energy storage device between the power source and the starter motor. The battery provides the necessary electrical energy to operate the starter motor, enabling automatic engine starting without direct manual intervention.
2Adaptability or versatility
If a traditional starter device is used, then the engine can be started automatically, but the device cannot utilize a cordless power tool battery for power
Solution Approach 1:
The patent designs the starter device with universal power source compatibility, allowing it to accept various battery types including cordless power tool batteries. The battery socket and electrical connections are configured to work with standard power tool batteries, enabling the starter to utilize existing power tool battery infrastructure and expanding its adaptability.
3Reliability
If a pull start mechanism is retained in the small engine, then the engine can be started manually, but the device complexity increases and space is occupied
Solution Approach 1:
The patent extracts and removes the pull-start mechanism from the engine assembly. By eliminating the redundant manual starting mechanism, the design reduces overall device complexity, frees up space, and simplifies the starting system while maintaining reliable automatic starting capability through the electric starter.
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
Enables the efficient and convenient starting of small engines without the need for a pull start mechanism, utilizing a cordless power tool battery for power, thereby reducing user effort and improving starting reliability.
Implementation Method 1
The starter has a battery socket for receiving a battery of a cordless power tool thereby enabling the starter to be powered by the battery of the cordless power tool
Implementation Method 2
The starter engages the flywheel gear when the starter is actuated for starting the small engine
Data Source
AI summary
A small engine starter device for automatically starting a small engine includes a flywheel gear which is attachable to a flywheel of a small engine in place of a pull start mechanism that has been removed from the flywheel. A starter is mountable to the small engine such that the starter surrounds the flywheel gear. The starter is actuatable into a starting condition such that the starter engages the flywheel gear. Additionally, the starter rotates the flywheel gear when the starter is actuated into the starting condition thereby enabling the starter to start the small engine. The starter has a battery socket for receiving a battery of a cordless power tool thereby enabling the starter to be powered by the battery of the cordless power tool.