Rotatable Cigarette Filter with Asymmetric Airflow for Taste Control
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Solution Overview
Problem
Existing filtered cigarette products struggle to reversibly change fragrance inhaling taste at the smoker's preference without altering the aroma delivery amount or nicotine/tar levels, and existing methods are not effective in providing flexible fragrance control.
Innovation Solution
A filter design featuring a mouthpiece end side-filter material with a low air flow-resistance unit in one semicircular area and a high air flow-resistance unit in the remaining area, allowing the smoker to change the smoke's entry point into the mouth cavity by rotating the filter, thereby controlling the fragrance experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an aroma capsule is placed inside the filter to change fragrance inhaling taste, then the aroma delivery amount is changed, but it is difficult to bring back the original fragrance inhaling taste after crushing the aroma capsule
Solution Approach 1:
The filter incorporates a rotatable structure with multiple air passage holes that can be oriented in different directions. By rotating the filter body, the user dynamically changes which air passage holes are positioned at the front end, thereby reversibly altering the fragrance inhaling taste without permanently modifying the filter's composition. This dynamic reconfiguration allows the user to switch between different fragrance profiles (e.g., light, medium, strong) and return to the original state.
2Adaptability or versatility
If ventilation holes in tipping paper are used to control air introduction rate, then the amounts of tar and nicotine are changed, but this method is not effective in changing the fragrance inhaling taste while smoking according to the smoker's preference
Solution Approach 1:
The filter divides the air passage functionality into multiple discrete air passage holes (first, second, third, and fourth air passage holes) located at different positions and orientations within the filter body. Each hole provides a distinct airflow path and fragrance delivery characteristic. This segmentation allows the user to selectively activate different holes by rotating the filter, providing fine-grained control over fragrance inhaling taste according to personal preference during smoking.
3Adaptability or versatility
If a uniform filter structure is used, then the manufacturing process is simple, but the ability to change fragrance inhaling taste at arbitrary timing is limited
Solution Approach 1:
The filter employs an asymmetric internal structure where air passage holes are positioned at different locations (front end, rear end, lateral sides) and oriented at different angles within the filter body. This asymmetric arrangement creates multiple distinct airflow pathways that become accessible at different rotational positions. The asymmetric design enables the filter to provide varied fragrance experiences without requiring complex external mechanisms, as the structural asymmetry itself encodes the multiple fragrance states.
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 reversible and arbitrary changes in fragrance inhaling taste without affecting nicotine or tar levels, allowing smokers to adjust the aroma and taste intensity based on their preference by altering the filter's orientation during smoking.
Implementation Method 1
a low air flow-resistance (pressure drop) unit is arranged in a part of the cross section, and a high air flow-resistance unit is arranged in the remainder of the cross section
Data Source
AI summary
The filter for cigarette product includes a mouthpiece end side-filter material and a front stage-filter material. The mouthpiece end side-filter material has a low air flow-resistance unit that is arranged in a part of a cross section from a front end surface to a rear end surface and having a relatively low air flow-resistance, and a high air flow-resistance unit that is arranged in the remainder of the cross section from the front end surface to the rear end surface and having a higher air flow-resistance than the low air flow-resistance unit. At least on the rear end surface of the mouthpiece end side-filter material, the low air flow-resistance unit is arranged only in one semicircular area, of two parts into which the cross section of the mouthpiece end side-filter material is divided.