SINGLE-SHAFT TWO-STAGE SUPERCHARGER

• Main Authors: SHIRAISHI KEIICHI, ITO JINICHI
• Format: Patent
• Language: English
• Published: 18.10.2012
• Subjects: AIR INTAKES FOR JET-PROPULSION PLANTS; BLASTING; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; COMBUSTION ENGINES; COMBUSTION ENGINES IN GENERAL; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS; ENGINE PLANTS IN GENERAL; GAS-TURBINE PLANTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; INDEXING SCHEME FOR ASPECTS RELATING TONON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES ORJET-PROPULSION PLANTS; INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUSSUBCLASSES OF CLASSES F01-F04; INTERNAL-COMBUSTION PISTON ENGINES; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES; STEAM ENGINES; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; WEAPONS

PROBLEM TO BE SOLVED: To provide a single-shaft two-stage supercharger that can be configured by effectively utilizing a supercharger with a standard design.SOLUTION: The single-shaft two-stage supercharger 1 has: a turbine unit 3 driven by an exhaust gas introduced from an internal combustion engine; and a low-pressure stage compressor unit 5 and a high-pressure stage compressor unit 6, which are driven by the turbine unit 3 so as to pump an external air into the internal combustion engine. The supercharger includes: a supercharger body unit Tm where the turbine unit 3 is connected with the low-pressure stage compressor unit 5 by a main rotary shaft 7; and the high-pressure stage compressor unit 6, with which a rotary shaft 9 is connected via the main rotary shaft 7 and a flexible joint 8, and which is fixed to and supported by the supercharger body unit Tm.