Throttle Body Adapter Arcuate Protrusion Idle Stability
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Solution Overview
Problem
Internal combustion engines face challenges in maintaining consistent idle speed and power output when equipped with larger throttle bodies, as increased airflow can lead to oscillations in the valve plate and reduced fuel efficiency.
Innovation Solution
A throttle body adapter with an arcuate protrusion that restricts airflow at idle or low power settings, preventing significant oscillation of the valve plate and ensuring consistent airflow to the combustion cylinders, while allowing full airflow at higher power settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a larger throttle body is installed to increase airflow and power output, then the engine can generate more power, but the idle speed becomes inconsistent and oscillates significantly
Solution Approach 1:
The adapter introduces a localized airflow restriction through a specific geometric feature (reduced diameter section) positioned at a critical location in the airflow path. This local modification creates a flow restriction zone that stabilizes idle speed without requiring modification of the entire throttle body or intake system.
Solution Approach 2:
The adapter acts as an intermediary component between the larger throttle body and the air intake manifold. It mediates the airflow from the high-capacity throttle body, introducing a flow restriction that prevents excessive airflow at idle conditions while maintaining the high power potential of the larger throttle body when needed.
2Power
If a larger throttle body is used to provide more air to combustion cylinders, then more power can be generated, but fuel economy deteriorates at low power settings
Solution Approach 1:
The adapter modifies the airflow parameters by introducing a geometric restriction (reduced diameter section) that changes the flow characteristics. This restriction creates a pressure drop and stabilizes the airflow rate at idle and low power conditions, preventing the excessive airflow that would otherwise cause poor fuel economy while preserving the ability to deliver high airflow when power is demanded.
3Power
If a larger throttle body is installed to increase air delivery, then higher power settings are achieved, but the valve plate oscillates significantly reducing airflow consistency
Solution Approach 1:
The adapter serves as an intermediary flow control element between the throttle body and intake manifold. The geometric restriction in the adapter creates a flow stabilization zone that dampens valve plate oscillations and maintains consistent airflow to the combustion cylinders, even when the larger throttle body is operating at varying power settings.
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 throttle body adapter enables a larger throttle body to be used for higher performance without negatively impacting idle efficiency or consistency of power output, ensuring steady operation and improved fuel economy at low power settings.
Implementation Method 1
The throttle body adapter has an arcuate protrusion that restricts airflow through the engine when it operates at idle or low power
Implementation Method 2
A larger throttle body can provide more air to the air intake manifold so that the air intake manifold can deliver more air to the combustion cylinders and the engine can generate more power
Data Source
AI summary
A throttle body adapter has an arcuate protrusion that allows a larger throttle body to be installed in an engine for higher performance without adversely affecting the engine when it operates at idle power or at low power settings. The throttle body adapter has a hollow body with an upstream surface that can be coupled to a throttle body, and a downstream surface that can be coupled to an air intake manifold of the engine. The hollow body has an adapter air passageway in fluid communication with a throttle body air passageway defined by the throttle body. The arcuate protrusion can be inserted into the throttle body air passageway. The throttle body has a valve plate that can be in contact or in close proximity to the arcuate protrusion when the valve plate is at an idle position.