Dual Pump Cooling System for Internal Combustion Engine
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Solution Overview
Problem
Modern internal combustion engine cooling systems are complex and inefficient due to the reliance on mechanically driven pumps and numerous temperature-controlled valves, which fail to match cooling capacity with actual requirements and lead to unnecessary cooling during warm-up phases.
Innovation Solution
A simplified cooling system utilizing two controllable coolant pumps integrated into separate cooling circuits, allowing for individual control of coolant flow and pressure to manage cooling capacity without temperature-controlled valves, with one pump primarily operating during the warm-up phase to prevent unwanted cooling and facilitate rapid heating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If mechanically driven coolant pumps are used, then the cooling system can be driven by the engine, but the delivery rate cannot be precisely matched to actual cooling requirements leading to oversized pumps and increased fuel consumption
Solution Approach 1:
The patent employs two coolant pumps with independently controllable delivery rates that can be dynamically adjusted based on real-time cooling requirements of different engine components. This dynamic control allows the system to adapt cooling capacity to actual needs, avoiding oversized pump operation and reducing fuel consumption while maintaining effective cooling across varying operating conditions.
2Adaptability or versatility
If multiple temperature-controlled valves are used to distribute coolant flow, then individual cooling control for different components is achieved, but the system complexity increases
Solution Approach 1:
The patent extracts the temperature-controlled valve components from the cooling system and replaces them with two controllable coolant pumps. Each pump independently controls coolant flow to specific cooling circuits based on thermal requirements, achieving individual cooling control without the complexity of multiple thermostatic valves and their associated control mechanisms.
3Temperature
If coolant is routed through the main water cooler during warm-up phase, then cooling capacity is available, but unwanted cooling occurs preventing rapid engine heating
Solution Approach 1:
The patent uses controllable coolant pumps that can dynamically adjust their delivery rates during different operating phases. During warm-up, the pumps operate at reduced delivery rates or are selectively deactivated for circuits connected to the main water cooler, preventing unwanted cooling and enabling rapid engine heating. When cooling is required, the pumps increase delivery rate to provide adequate cooling capacity.
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 configuration ensures efficient cooling and heating capabilities, reduces fuel consumption, and simplifies the cooling system by eliminating the need for complex valve management, while allowing for precise control of coolant flow to match varying engine operating conditions.
Implementation Method 1
absorbs thermal energy from components integrated into the cooling circuit
Implementation Method 2
a coolant is pumped into at least one cooling circuit by means of one or more pumps and, in the process, absorbs thermal energy from components
Implementation Method 3
This thermal energy is then given in an ambient heat exchanger, the so-called main water cooler, and at times in a heating heat exchanger to the ambient air
Implementation Method 4
heat transfer from the coolant to the ambient air
Data Source
AI summary
The present invention relates to a cooling system which is used for an internal combustion engine and consists of a first cooling circulation comprising a component cooler, an environment heat exchanger and a pump (18) and a second cooling circulation comprising a component cooler and a pump (24), wherein the cooling circulations are integratedly configured in at least one section and coolant configured to be conveyed by the pumps (18, 24) is arranged in the cooling circulations, and the cooling system is characterized in that the pumps are adjustably configured and adjustment of volume flow of the coolant flowing through the component coolers can be realized through cooperated operation of the pumps (18, 24).