Integrated valve assembly

A valve assembly, comprising:

• an inlet port in fluid communication with a turbocharger, and the inlet port in fluid communication with an intake manifold of an engine;
• an overmold assembly;
• an overmold assembly cavity formed as part of the overmold assembly, the overmold assembly cavity in fluid communication with the inlet port;
• a cavity adjacent the overmold assembly cavity;
• an inner wall portion formed as part of the overmold assembly, the inner wall portion located between and separating the cavity and the overmold assembly cavity;
• an outer wall portion formed as part of the overmold assembly the outer wall portion being substantially parallel to the inner wall portion, the cavity located between the outer wall portion and the inner wall portion;
• a cap connected to the overmold assembly;
• a reservoir connected to the cap;
• a reservoir cavity formed as part of the reservoir;
• a bypass switching valve at least partially located in the cavity adjacent the first cavity, the bypass switching valve controlling flow between the overmold assembly cavity and the reservoir cavity, the bypass switching valve located in the overmold assembly;
• a lower wall formed as part of the reservoir;
• a check valve cavity;
• a bypass check valve mounted to the lower wall and located in the check valve cavity;
• and
• at least one check valve aperture providing fluid communication between the reservoir cavity and the check valve cavity;
• a first mode of operation, during the first mode of operation, the valve assembly is exposed to vacuum pressure in the overmold assembly cavity such that when the bypass switching valve is open, the reservoir cavity, the at least one check valve aperture, and the bypass check valve are exposed to the vacuum pressure such that the bypass check valve is placed in a closed position;
• and
• a second mode of operation, during the second mode of operation and when the bypass switching valve is open, pressurized air flows through the overmold assembly cavity, the bypass switching valve, the reservoir cavity, the at least one check valve aperture, and applies pressure to the bypass check valve to open the bypass check valve.

A valve assembly for an air flow system, comprising:

• a turbocharger unit for selectively generating pressurized air when activated, and directing at least a portion of the pressurized air to an intake manifold;
• a venturi valve member for receiving a portion of the pressurized air from the turbocharger unit, and generating back pressure;
• a bypass switching valve in fluid communication with the turbocharger and the venturi valve member, the bypass switching valve being part of the valve assembly;
• an inlet port in fluid communication with the turbocharger unit, and the inlet port in fluid communication with the intake manifold;
• an overmold assembly;
• an overmold assembly cavity formed as part of the overmold assembly, the overmold assembly cavity in fluid communication with the inlet port;
• a cavity adjacent the overmold assembly cavity, the bypass switching valve located in the cavity;
• an inner wall portion formed as part of the overmold assembly, the inner wall portion located between and separating the cavity and the overmold assembly cavity;
• an outer wall portion formed as part of the overmold assembly the outer wall portion being substantially parallel to the inner wall portion, the cavity located between the outer wall portion and the inner wall portion;
• a cap connected to the overmold assembly;
• a reservoir connected to the cap;
• a reservoir cavity formed as part of the reservoir, the bypass switching valve controlling flow between the overmold assembly cavity and the reservoir cavity;
• a bypass check valve being part of the valve assembly and in fluid communication with the bypass switching valve;
• a first mode of operation, during the first mode of operation, the turbocharger unit is deactivated, and the valve assembly is exposed to vacuum pressure from the intake manifold such that when the bypass switching valve is open, the bypass check valve is exposed to the vacuum pressure such that the bypass check valve is placed in a closed position;
• and
• a second mode of operation, during the second mode of operation the turbocharger unit is activated, and when the bypass switching valve is open, pressurized air flows through the bypass switching valve, and places the bypass check valve in an open position, and the venturi valve member generates a pressure balance in the bypass check valve.