Utility Vehicle Powertrain Cooling Circuit Layout
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Vehicles equipped with forced-air inducers, such as superchargers or turbochargers, face the challenge of increased air temperature due to compression, which can lead to inefficient engine performance unless effectively cooled, and existing cooling systems may not adequately address this issue across various operating conditions.
Innovation Solution
A vehicle powertrain assembly incorporating a cooling assembly with a first cooling circuit to regulate engine temperature and a second cooling circuit to cool intake air, including a heat exchanger configuration that extends from the front to the rear of the lower frame, ensuring efficient temperature management for both the engine and air intake.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a forced-air inducer (supercharger or turbocharger) is used to increase power output, then the power output of the powertrain assembly is increased, but the temperature of the pre-combustion air increases
Solution Approach 1:
An intercooler is introduced as an intermediary component between the forced-air inducer and the engine. The intercooler acts as a heat exchanger that removes excess heat from the compressed intake air, cooling it before it enters the engine. This mediator component resolves the contradiction by allowing the forced-air inducer to operate at high power output while the intercooler maintains the intake air temperature within acceptable ranges for efficient combustion.
2Temperature
If an intercooler is added to cool the charged air, then the temperature of the intake air is maintained, but the device complexity increases
Solution Approach 1:
The cooling assembly is merged with the powertrain assembly as an integrated unit. The intercooler is positioned and configured to work seamlessly with the forced-air inducer and engine, sharing mounting structures and fluid pathways where possible. This merging approach reduces the overall device complexity by eliminating separate, standalone cooling components and their associated mounting hardware, while still achieving effective intake air temperature control.
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 described cooling system effectively maintains optimal temperatures for the engine and intake air, enhancing powertrain performance and efficiency by preventing overheating and ensuring consistent power output across varying operational conditions.
Implementation Method 1
a first cooling circuit configured to alter a temperature of the engine
Implementation Method 2
a second cooling circuit configured to alter a temperature of intake air received within the engine
Implementation Method 3
an intercooler may be provided to decrease the temperature of the charged or pressurized air flowing from the forced-air inducer and into the engine
Data Source
AI summary
A utility vehicle includes a plurality of ground-engaging members, a frame supported by the ground-engaging members, and a powertrain assembly. The powertrain assembly includes an engine, a shiftable transmission, a continuously variable transmission, and a charger. Additionally, the utility vehicle may include a cooling assembly fluidly coupled to at least the engine and the charger.