Abstract: A multi-port valve assembly, including a housing, a plurality of ports formed as part of the housing, and a rotor disposed in the housing, the rotor selectively in fluid communication with the ports. A first channel is integrally formed as part of the rotor, and a circumferential wall is part of the first channel, the circumferential wall at least partially surrounding a circular aperture which is also part of the first channel. The multi-port valve assembly also includes a second channel integrally formed as part of the rotor, the second channel fluidically isolated from the first channel, and at least two flow paths formed by the orientation of the rotor relative to the housing and the ports. The rotor is placed in one of a plurality of configurations relative to the ports and the housing such that each of the plurality of configurations includes the flow paths.

Abstract: A seal assembly for a multi-port valve assembly, the seal assembly including a plurality of beads integrally formed as part of a rotor, at least one seal element in sliding contact with one or more of the beads, and at least one lip seal integrally formed as part of the seal element. One or more of the beads applies force to the seal element, such that the force is transferred to the lip seal. The beads include at least one circumferential bead which circumscribes the rotor, and the circumferential bead continuously applies force to the seal element when the rotor is in each of a plurality of orientations. The beads also include at least one tangential bead extending along an outer surface of the rotor, and the tangential bead applies force to the seal element when the rotor is in one of a plurality of orientations.

Abstract: A multi-port thermal module which includes a central housing, a plurality of flow cavities integrally formed as part of the central housing, at least one inner housing connected to a first side of the central housing, a first plurality of inner flow channels integrally formed as part of the first inner housing, each of the first plurality of inner flow channels in fluid communication with at least one of the flow cavities, and a first outer housing connected to the first inner housing. A portion of each of a first plurality of flow channels is integrally formed as part of the first inner housing, and another portion of each of the first plurality of flow channels is integrally formed as part of the first outer housing. A rotor located in the central housing is rotated to various orientations to direct fluid between the plurality of flow cavities.

Abstract: A multi-port valve assembly, which includes a housing, a plurality of ports formed as part of the housing, a rotor disposed in the housing, and is selectively in fluid communication with the plurality of ports. Also included is a plurality of channels integrally formed as part of the rotor, a central plane extending through the rotor, a first level on one side of the central plane where a portion of the channels is located on the first level, and a second level on the opposite side of the central plane in relation to the first level, where a portion of the channels are located on the second level. At least two flow paths are formed by the orientation of the rotor relative to the housing and the ports, and the rotor is placed in one of a plurality of configurations to achieve the at least two flow paths.

Abstract: A multi-port valve assembly, which includes a housing, a plurality of ports formed as part of the housing, a rotor disposed in the housing, and is selectively in fluid communication with the plurality of ports. Also included is a plurality of channels integrally formed as part of the rotor, a central plane extending through the rotor, a first level on one side of the central plane where a portion of the channels is located on the first level, and a second level on the opposite side of the central plane in relation to the first level, where a portion of the channels are located on the second level. At least two flow paths are formed by the orientation of the rotor relative to the housing and the ports, and the rotor is placed in one of a plurality of configurations to achieve the at least two flow paths.

Abstract: A multi-level rotor for a coolant flow control valve assembly, which accommodates an increased number of inlet ports, outlet ports, and flow channels using a single rotor located in a housing, enabling a larger number of flow configurations. The housing includes nine ports which may function as an inlet or an outlet, which facilitates different flow configurations. For a thermal management system, reduced cost and less space utilization is achieved by a reduced number of valves, where the multi-level rotor is able to fluidically connect multiple inlets/outlets. This enables different flow configurations, depending on the degree of rotation. The channels at different levels are sealed from each other within the housing. The flow channels are manufactured into a single entity, therefore always having the same positional accuracy relative to each other when the rotor is repositioned.

Abstract: An vapor purge system for a turbocharged internal combustion engine having an evaporative emissions turbo purge valve incorporating a venturi vacuum generator and a hose-off detection function. The turbo purge valve includes a pressure sensor, and a low restriction check valve which is integrated into the outlet port of the venturi vacuum generator. The pressure sensor is capable of detecting the small pressure drop (i.e., vacuum) generated at the air inlet tube or air box during naturally aspirated conditions. The check valve closes the venturi vacuum generator on the purge side during naturally aspirated conditions, allowing fluid communication to the air intake system through one port only, and the detection of the vacuum during these conditions. If a hose becomes detached, either at the outlet port of the venturi vacuum generator or at the air box, the small vacuum is not detected, and the ECU then diagnoses the hose-off condition.

Abstract: An electronic compressor bypass valve (eCBV) includes a housing having an annular internal surface defining an opening therein. A piston-seal structure is constructed and arranged to be movable linearly within the opening. The piston-seal structure includes a generally cylindrical piston portion having proximal and distal ends. The distal end defines a seal surface constructed and arranged to seal with a body. The proximal end defines a first outer diameter. The piston-seal structure further includes an annular seal portion fixed to the proximal end of the piston portion. The seal portion has an outer diameter that is larger than the first outer diameter of the piston portion, thereby defining an annular sealing surface. Upon movement of the piston-seal structure, the sealing surface is constructed and arranged to slidingly engage the annular internal surface of the housing thereby creating an annular seal between the piston portion and the housing.

Abstract: An electronic compressor bypass valve (eCBV) module includes a pedestal housing, and a compressor bypass valve mounted to the pedestal housing. An inlet port, a first outlet port, and a second outlet port are integrally formed as part of the pedestal housing, where pressurized air flows into the inlet port. The eCBV module also includes a venturi device at least partially disposed in the second outlet port. When the compressor bypass valve is in an open position, a portion of the pressurized air flows through the first outlet port, and a portion of the pressurized air flows from the inlet port through the venturi device and through the second outlet port. When the compressor bypass valve is in the closed position the pressurized air is prevented from flowing into the first outlet port, and all of the pressurized air flows through the venturi device and through the second outlet port.

Abstract: A three-port turbo purge module, including a housing having a cavity, and two check valves. During a first mode of operation, the first check valve is open and the second check valve is closed by vacuum pressure generated in an intake manifold, such that purge vapor flows from an inlet port into the cavity, through the first check valve, and into a first port. During a second mode of operation, where the intake manifold is operating under positive pressure, the first check valve is closed such that pressurized air flowing into the first port is accelerated through a venturi device disposed in the cavity, and the second check valve is open such that purge vapor flows from the inlet port into the cavity, through the venturi device and mixes with the high-velocity air, through the second check valve into the second port.

Abstract: An electronic compressor bypass valve (eCBV) module includes a pedestal housing, and a compressor bypass valve mounted to the pedestal housing. An inlet port, a first outlet port, and a second outlet port are integrally formed as part of the pedestal housing, where pressurized air flows into the inlet port. The eCBV module also includes a venturi device at least partially disposed in the second outlet port. When the compressor bypass valve is in an open position, a portion of the pressurized air flows through the first outlet port, and a portion of the pressurized air flows from the inlet port through the venturi device and through the second outlet port. When the compressor bypass valve is in the closed position the pressurized air is prevented from flowing into the first outlet port, and all of the pressurized air flows through the venturi device and through the second outlet port.

Abstract: A three-port turbo purge module, including a housing having a cavity, and two check valves. During a first mode of operation, the first check valve is open and the second check valve is closed by vacuum pressure generated in an intake manifold, such that purge vapor flows from an inlet port into the cavity, through the first check valve, and into a first port. During a second mode of operation, where the intake manifold is operating under positive pressure, the first check valve is closed such that pressurized air flowing into the first port is accelerated through a venturi device disposed in the cavity, and the second check valve is open such that purge vapor flows from the inlet port into the cavity, through the venturi device and mixes with the high-velocity air, through the second check valve into the second port.

Abstract: An vapor purge system for a turbocharged internal combustion engine having an evaporative emissions turbo purge valve incorporating a venturi vacuum generator and a hose-off detection function. The turbo purge valve includes a pressure sensor, and a low restriction check valve which is integrated into the outlet port of the venturi vacuum generator. The pressure sensor is capable of detecting the small pressure drop (i.e., vacuum) generated at the air inlet tube or air box during naturally aspirated conditions. The check valve closes the venturi vacuum generator on the purge side during naturally aspirated conditions, allowing fluid communication to the air intake system through one port only, and the detection of the vacuum during these conditions. If a hose becomes detached, either at the outlet port of the venturi vacuum generator or at the air box, the small vacuum is not detected, and the ECU then diagnoses the hose-off condition.