Vehicle Capsule Apparatus Thermal Management
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Solution Overview
Problem
Existing capsule structures for internal-combustion engine power units in vehicles fail to efficiently maintain engine temperature during idle or stop conditions, leading to decreased fuel economy when the engine is restarted from a cooled state.
Innovation Solution
A capsule apparatus with a heat-insulating casing that encloses the engine body and exhaust member, featuring a controlled opening mechanism to manage temperature using internal and external temperature sensors, allowing for efficient heat retention and warming using exhaust heat.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If the capsule structure is closed during engine stop, then the engine temperature is maintained for long time, but the exhaust heat cannot be utilized to warm the engine during cold start
Solution Approach 1:
The capsule structure transitions from a static closed state to a dynamic state with controllable openings. The open-close members allow the capsule to adapt its configuration based on operational requirements, enabling heat retention during idle and heat exchange during cold start conditions.
Solution Approach 2:
The system changes the thermal parameters of the capsule structure by controlling the opening/closing state of the open-close members. This allows dynamic adjustment of heat insulation properties to match different operational phases, optimizing both temperature maintenance and exhaust heat utilization.
2Use of energy by moving object
If the capsule structure is open during engine operation, then the exhaust heat can warm the engine, but the engine temperature cannot be maintained during stop conditions
Solution Approach 1:
The capsule structure employs dynamic open-close members that can adjust their state based on real-time operational conditions. This enables the system to switch between heat retention mode (closed) and heat utilization mode (open) seamlessly.
Solution Approach 2:
The control unit monitors engine operational state and temperature conditions, then adjusts the open-close member positions accordingly. This feedback mechanism ensures optimal thermal management by coordinating capsule configuration with actual engine needs.
3Temperature
If the capsule structure fully encloses the exhaust member, then heat retention is maximized, but the exhaust gas discharge is hindered
Solution Approach 1:
The capsule structure is segmented with specific openings positioned near the exhaust member. This segmentation allows the exhaust pathway to remain unobstructed while other areas maintain heat insulation, resolving the conflict between heat retention and exhaust discharge.
Solution Approach 2:
The capsule structure applies different thermal properties to different regions: areas near the exhaust member have openings for efficient gas discharge, while other areas maintain closed configuration for heat retention. This local differentiation optimizes both functions simultaneously.
4Measurement precision
If the capsule structure is designed with complex opening mechanisms, then temperature control precision is improved, but the device complexity increases
Solution Approach 1:
The open-close members are designed to be actuated by the control unit based on simple sensor inputs, allowing the system to achieve precise temperature control through automated decision-making rather than complex mechanical mechanisms.
Solution Approach 2:
The patent replaces complex mechanical temperature control mechanisms with an electronic control system that uses sensors and actuators to manage the open-close members, reducing mechanical complexity while improving control precision.
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
This solution effectively maintains engine temperature, improving fuel economy by allowing the engine to restart with optimal performance and reducing the time needed to reach operational temperature, while minimizing the impact on vehicle design and manufacturing costs.
Implementation Method 1
a capsule apparatus with a heat-insulating casing that encloses the engine body and exhaust member
Implementation Method 2
allowing for efficient heat retention and warming using exhaust heat
Implementation Method 3
warming using exhaust heat
Data Source
AI summary
A capsule apparatus for a power unit of a vehicle is provided. The power unit is provided in a compartment of the vehicle and configured to combust air-fuel mixture in an engine body and discharge the combusted air-fuel mixture via an exhaust member. The capsule apparatus includes a capsule structure, an opening, an open-close member, and a controller. The capsule structure is configured to enclose at least the engine body, at least the exhaust member being provided outside the capsule structure. The opening of the capsule structure is provided near the exhaust member. The open-close member is configured to be movable to close the opening. The controller is configured to control opening and closing of the opening by the open-close member.