Title:
TWO-STAGE TURBOCHARGER SYSTEM
Document Type and Number:
Japanese Patent JP2017125429
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a two-stage turbocharger system capable of improving the mountability thereof in a vehicle and reducing facility cost.SOLUTION: A two-stage turbocharger system equipped with a high pressure stage turbocharger 6 and a low pressure stage turbocharger 10 comprises: a bypass pipe 7 that bypasses a high pressure stage turbine 3 by short-cutting the inlet side and the outlet side of the high pressure stage turbine 3; and a three-way valve 20 disposed at a place where the bypass pipe 7 is joined to the outlet side of the high pressure stage turbine 3. The three-way valve 20 is configured in such a manner that a normal position to shut off only the bypass pipe 7, a high pressure stage bypass position to throttle only the bypass pipe 7 into a necessary opening in a state where at least a part of the bypass pipe 7 is opened, an exhaust throttle position to throttle the outlet side of the high pressure stage turbine 3 into a necessary opening while maintaining the bypass pipe 7 in a shut-off state, and an exhaust brake position to shut off only the inlet side of a low pressure stage turbine 8 can be selectively switched.SELECTED DRAWING: Figure 1
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Inventors:
MEGURO AKIRA
Application Number:
JP2016004032A
Publication Date:
July 20, 2017
Filing Date:
January 13, 2016
Export Citation:
Assignee:
HINO MOTORS LTD
International Classes:
F02B37/00; F02B37/013; F02B37/18; F02B37/22
Attorney, Agent or Firm:
Yamada Patent Office