Supercharger cooling

摘要

A supercharger cooling system provides a path for coolant from an air/coolant heat exchanger to a supercharger intercooler and then loops around the supercharger housing proximal to a hot outlet end of the supercharger and back to the heat exchanger. The heat exchanger may be a dedicated air/coolant heat exchanger or be a vehicle radiator. The intercooler is sandwiched between the supercharger and intake manifold and cools the flow of hot compressed air from the supercharger into the intake manifold. The supercharger cooling loop cools the bearings and seals, the forward ends of the male and female rotors, and the male and female rotor gears. The cooling loop is preferably located between the supercharger rotors and the rotor drive gears to form a barrier to heat. A dedicated pump cycles the coolant flow and restrictions control the flow of coolant to the supercharger.

主权项

1. An engine including a supercharger having an outlet end cooling system comprising:
an engine intake manifold providing a flow of compressed air into the engine; a supercharger in fluid communication with the engine intake manifold providing the flow of compressed air into the intake manifold; an inlet end of the supercharger receiving ambient air; an outlet end of the supercharger opposite the inlet end of the supercharger; a path for the ambient air from the inlet end of the supercharger to the outlet end of the supercharger with increasing pressure and temperature as the ambient air is compressed along the path to produce the flow of compressed air; a coolant to air heat exchanger for cooling a coolant flow; a supercharger coolant inlet in fluid communication with the coolant to air heat exchanger to receive the cooled coolant flow; a supercharger coolant path residing proximal to the outlet end of the supercharger, no portion of the supercharger coolant path greater than three inches from an outlet end wall portion of the supercharger, the supercharger coolant path in fluid communication with the supercharger coolant inlet to receive the cooled coolant flow; a supercharger coolant outlet in fluid communication with the supercharger coolant path to receive the coolant flow from the supercharger coolant path; and the supercharger coolant outlet in fluid communication with the coolant to air heat exchanger to return the coolant flow to the coolant to air heat exchanger.