Patent ID: 8161920
Filing Date: 2012-04-24
Classification: B60H,F01P,F02N,F28D,Y02E

Abstract:
1. A heat storage apparatus comprising: a container housed in a water jacket formed in a cylinder block; a heat storage agent contained in the container; a primary nucleation trigger that causes a primary nucleation of the heat storage agent; an operation portion that operates the primary nucleation trigger; a coolant temperature sensor that measures a temperature of coolant that flows in the water jacket; and an electronic control unit including a calculation portion that indirectly determines at least one of a state of the heat storage agent and a state of the container, based on the temperature of the coolant detected by the coolant temperature sensor, wherein the calculation portion determines at least one of the state of the heat storage agent and the state of the container, based on a rate at which the temperature of the coolant decreases when the temperature of the coolant decreases.