Electronic Fuel Injection Throttle Body Assembly Design
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Solution Overview
Problem
Existing carburetor replacement systems face challenges in consistency and efficiency due to variations in atmospheric and engine conditions, and they often require custom sizing for different engines and vehicles, with prior mechanical or hydraulic systems being prone to decreased performance over time.
Innovation Solution
A throttle body assembly with improved fuel pathways and configuration, including computer-mounted fuel injectors and a notch for wire routing, which can be scaled and configured to fit various engines, using external fuel crossover tubes for flexibility and serviceability, and accommodating different engine performance requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If electronic fuel injection systems are used to replace carburetors, then performance consistency and efficiency are improved, but device complexity and packaging space requirements increase
Solution Approach 1:
The patent combines the fuel injector, computer, and associated wiring into an integrated throttle body assembly. The computer is mounted directly on the throttle body, and fuel injectors are positioned within the throttle bores, merging multiple components into a single unified structure that reduces overall system complexity while maintaining EFI performance benefits.
Solution Approach 2:
The throttle body assembly is designed with universal applicability across different engine types and manufacturers. The standardized mounting interfaces, configurable fuel injector arrangements, and adaptable wiring routing enable the same basic design to serve multiple functions across diverse automotive applications, reducing complexity through standardization.
2Volume of moving object
If throttle body size is reduced to fit within engine compartments, then packaging space is improved, but fuel pathway length and routing complexity increase
Solution Approach 1:
The patent utilizes three-dimensional space efficiently by routing fuel pathways through the vertical and radial dimensions of the throttle body. Fuel injectors are positioned at various heights and angles within the throttle bores, and fuel pathways are configured to optimize flow while minimizing length, effectively using spatial dimensionality to reduce routing complexity despite compact size.
Solution Approach 2:
The fuel injectors are nested within the throttle body structure, with fuel pathways integrated into the throttle body casting. The computer is mounted on the exterior surface of the throttle body, and wiring is routed through notches and channels formed in the throttle body itself, creating a nested arrangement that minimizes external routing while maintaining compact dimensions.
3Productivity
If fuel pathways are optimized for efficient fuel delivery, then fuel flow efficiency is improved, but manufacturing precision requirements increase
Solution Approach 1:
The fuel delivery system is segmented into distinct functional zones: fuel inlet passages, fuel rail distribution channels, individual injector supply lines, and return passages. This segmentation allows each pathway to be optimized independently for its specific function while maintaining overall efficiency, and enables modular manufacturing where precision requirements can be managed in discrete sections rather than as a single complex system.
Data Source
AI summary
Present embodiments provide an electronic fuel injection throttle body which may be used with a variety of engines of different manufacturers. The throttle body may be used to replace mechanical or hydraulically controlled carburetors with electronic fuel injection. The bores or barrels of the throttle body may comprise one or more stackable fuel injectors. The fuel component cover may include a regulator with a housing formed integrally with the fuel component cover or alternatively, a regulator may be located remotely.