Deformable Common Rail Volume Splitter for Emulsion Flow Uniformity
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Solution Overview
Problem
Existing emulsion injection systems face challenges in evenly distributing water-fuel emulsion to fuel injectors, leading to potential leakage and reduced homogeneity, which affects engine performance and efficiency.
Innovation Solution
A radially deformable volume splitter with a deformable longitudinal slot and grooves is used to enhance the fit and alignment within the common rail, ensuring even distribution and minimizing leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a rigid volume splitter is used in the common rail, then structural strength is maintained, but the fit and clearance control with the cavity is poor leading to leakage and reduced emulsion homogeneity
Solution Approach 1:
The volume splitter transitions from a static rigid structure to a dynamic deformable structure. The splittable member can radially deform under fluid pressure to conform to the cavity geometry, optimizing the fit and clearance dynamically during operation rather than relying on precise pre-manufacturing tolerances.
Solution Approach 2:
The physical state of the volume splitter changes from a fixed rigid form to a deformable form that can alter its radial dimensions. This parameter change allows the splitter to adapt its shape and size to achieve optimal fit with the cavity, improving sealing and emulsion distribution.
2Reliability
If precise fit between volume splitter and cavity is achieved through manufacturing tolerances, then leakage is reduced, but manufacturing complexity and cost increase
Solution Approach 1:
Instead of relying on static manufacturing precision, the invention uses dynamic deformation of the splittable member to achieve the desired fit. The member deforms radially under pressure to conform to the cavity, providing leakage prevention through adaptive sealing rather than tight tolerances.
Solution Approach 2:
The volume splitter employs a flexible splittable member that can deform radially to adapt to the cavity geometry. This flexible structure provides conformal contact and sealing without requiring high manufacturing precision, as the flexibility compensates for dimensional variations.
3Ease of operation
If the volume splitter is made resilient to allow deformation, then ease of installation and fit control improve, but structural strength may be compromised
Solution Approach 1:
The volume splitter is divided into multiple splittable members that can deform independently. This segmentation allows each member to flex and adapt to the cavity while collectively maintaining the structural integrity and strength required for high-pressure operation.
Solution Approach 2:
The splittable members are constructed from composite materials or structures that combine flexibility for deformation with sufficient strength for high-pressure operation. This allows the splitter to be both resilient enough for easy installation and strong enough for reliable service.
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 deformable volume splitter improves the homogeneity of the water-fuel emulsion delivery, reducing leakage and enhancing engine performance and efficiency by maintaining consistent fluid flow to the fuel injectors.
Implementation Method 1
a deformable longitudinal slot operable to radially deform the volume splitter from a first state for insertion into a cavity of the emulsion injection common rail to a second state for use inside the cavity
Implementation Method 2
The volume splitter may be resilient, for example, having been formed from a resilient material. In this manner, the volume splitter may have a rest state or shape, neither in tension or compression, and the resilience of the volume splitter may urge the volume splitter back to the rest state when the volume splitter is deformed.
Data Source
AI summary
A radially deformable volume splitter of an emulsion injection common rail for a fuel injection system of a spark ignition engine. The volume splitter may be tubular and elongate, extending along a longitudinal axis from a first end to a second end. The volume splitter may comprise: a deformable longitudinal slot operable to radially deform the volume splitter from a first state for insertion into a cavity of the emulsion injection common rail to a second state for use inside the cavity; and a set of grooves, arranged on an outer surface of the volume splitter, for connecting an inlet of the cavity to one or more outlets of the cavity, in use.