Evacuator system for supplying high suction vacuum or high suction flow rate

摘要

A turbocharged engine air system is disclosed. The engine air system includes at least two devices requiring vacuum, a turbocharger having a compressor fluidly connected to an intake manifold of an engine, a first evacuator and a second evacuator. The first evacuator defines a first motive section, a first discharge section, and at least two first suction ports. The first motive section of the first evacuator is fluidly connected to the compressor, and each of the at least two first suction ports are fluidly connected to one of the at least two devices requiring vacuum. The second evacuator defines a second motive section, a second discharge section, and at least two second suction ports. The second motive section of the second evacuator is fluidly connected to at least one of the at least two devices requiring vacuum.

主权项

1. A turbocharged engine air system, comprising:
at least two devices requiring vacuum; a turbocharger having a compressor fluidly connected to an intake manifold of an engine; a first evacuator defining a first motive section, a first discharge section, and at least two first suction ports, wherein the first motive section and the first discharge section of the first evacuator are fluidly connected to the engine air system at a location upstream of the intake manifold of the engine and downstream of the compressor and each of the at least two first suction ports are fluidly connected to one of the at least two devices requiring vacuum; and a second evacuator defining a second motive section, a second discharge section, and at least two second suction ports, wherein the second motive section of the second evacuator is fluidly connected to at least one of the at least two devices requiring vacuum, and each of the at least two second suction ports are fluidly connected to one of the at least two devices requiring vacuum.