摘要:
A rotary valve provides single point flow control of coolant within the cooling system of an internal combustion engine. The valve distributes coolant flow from the engine in predetermined flow modes to either 1) the radiator and heater simultaneously, 2) a bypass circuit only, 3) the heater only, or 4) the radiator and bypass simultaneously. The single-point coolant control results in advantages of shorter warm-up times, a lower pressure drop (reducing power consumption by the pump), reduced engine emissions and fuel consumption, improved cabin heater performance, and improved engine durability due to reduced thermal shocks to the engine components by virtue of more precise control of engine operating temperature.
摘要:
A tube supporting member for an automotive heat exchanger is disclosed wherein the support member includes a plurality of apertures each having a cylindrical ferrule portion extending therefrom. The apertures include a curvilinear portion terminating in a discontinuous radius to form a corner at the aperture. The ferrule portions support the tube members of the heat exchanger.
摘要:
A manifold and a method of making a manifold for a tube and fin type heat exchanger are disclosed wherein the manifold is a one piece aluminum extrusion. The method includes the steps of extruding the material into a U-shaped channel having a base member and a pair of vertical walls, forming a plurality of fluid conducting passageways in the base member, and rolling the vertical walls toward the longitudinal center of the base member until the free ends of the walls contact the base member to form a pair of hollow longitudinal fluid conduits. The conduit are then crimped at predetermined locations to form fluid baffles and the manifold is then sealed.