REAR AXLE LUBRICATION OIL TEMPERATURE CONTROL USING EXHAUST HEAT RECOVERY AND A THERMAL BATTERY
First Claim
Patent Images
1. A rear axle coolant system, comprising:
- an exhaust heat recovery system to transfer heat from an engine exhaust system to a cooling fluid;
a rear-axle heat exchanger to transfer heat between the cooling fluid and rear axle lubrication oil; and
a thermal battery system positioned intermediate the exhaust heat recovery system and the rear-axle heat exchanger, the thermal battery system configured to store excess heat from the exhaust heat recovery system.
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Abstract
Methods and systems are provided for regulating the temperature of rear axle lubrication oil. In one example, a rear axle coolant system may include a coolant loop with a plurality of valves and sensors, regulating the coolant flow in heat exchange relationship with an exhaust gas heat recovery and storage system to deliver warm coolant to a rear axle heat exchanger to warm the rear axle lubrication oil. The method may regulate the components of the rear axle coolant system through a controller, receiving sensor input from the components of the coolant system.
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Citations
12 Claims
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1. A rear axle coolant system, comprising:
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an exhaust heat recovery system to transfer heat from an engine exhaust system to a cooling fluid; a rear-axle heat exchanger to transfer heat between the cooling fluid and rear axle lubrication oil; and a thermal battery system positioned intermediate the exhaust heat recovery system and the rear-axle heat exchanger, the thermal battery system configured to store excess heat from the exhaust heat recovery system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12-20. -20. (canceled)
Specification