Nissan North America, Inc.

Nissan Technical Center North America, Inc.

Richard Madden

Ronald Snowden Eisenhour

A vehicle engine warm-up apparatus includes a vehicle engine, a heating system, a coolant temperature sensor, a coolant heater and a controller. The vehicle engine has a coolant passage defined therein. The heating system provides heat to a passenger compartment of a vehicle using heat transferred from the vehicle engine to coolant flowing through the coolant passage. The coolant temperature sensor measures a temperature of the coolant flowing through the coolant passage. The coolant heater is configured to heat the coolant flowing through the coolant passage of the vehicle engine. The controller is configured to operate the coolant heater with the vehicle engine running to increase a rate of heating of the coolant to more rapidly make heat available to the heating system in response to determining that the coolant temperature is below a first temperature threshold.

Vehicle engine warm-up apparatus

An engine balancing device is provided that is adapted to be coupled to an axial end of a crankshaft of an engine. The engine balancing device comprises a generally disk shaped main body and at least one balance tab. The generally disk shaped main body includes a hub portion with a centrally located crankshaft mounting bore configured and arranged to receive the crankshaft therein. The at least one balance tab is disposed on the main body and configured and arranged to be selectively removed to adjust a dynamic balance of the engine.

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Brighton, MI, United States of America

Richard Madden