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1. US20130213036 - Engine system

Office United States of America
Application Number 13881309
Application Date 24.10.2011
Publication Number 20130213036
Publication Date 22.08.2013
Grant Number 09169770
Grant Date 27.10.2015
Publication Kind B2
IPC
F02B 33/44
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
33Engines characterised by provision of pumps for charging or scavenging
44Passages conducting the charge from the pump to the engine inlet, e.g. reservoirs
F02B 37/04
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
37Engines characterised by provision of pumps driven at least for part of the time by exhaust
04Engines with exhaust drive and other drive of pumps, e.g. with exhaust-driven pump and mechanically-driven second pump
F02B 37/10
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
37Engines characterised by provision of pumps driven at least for part of the time by exhaust
04Engines with exhaust drive and other drive of pumps, e.g. with exhaust-driven pump and mechanically-driven second pump
10at least one pump being alternately driven by exhaust and other drive
F02B 39/10
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
39Component parts, details, or accessories relating to driven charging or scavenging pumps, not provided for in groups F02B33/-F02B37/169
02Drives of pumps; Varying pump drive gear ratio
08Non-mechanical drives, e.g. fluid drives having variable gear ratio
10electric
F02D 13/04
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
13Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
02during engine operation
04using engine as brake
F02D 23/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
23Controlling engines characterised by their being supercharged
CPC
F02B 37/04
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
37Engines characterised by provision of pumps driven at least for part of the time by exhaust
04Engines with exhaust drive and other drive of pumps, e.g. with exhaust-driven pump and mechanically-driven second pump
F02B 37/10
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
37Engines characterised by provision of pumps driven at least for part of the time by exhaust
04Engines with exhaust drive and other drive of pumps, e.g. with exhaust-driven pump and mechanically-driven second pump
10at least one pump being alternatively ; or simultaneously; driven by exhaust and other drive, ; e.g. by pressurised fluid from a reservoir or an engine-driven pump
F02B 39/10
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
39Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
02Drives of pumps
08Non-mechanical drives, e.g. fluid drives having variable gear ratio
10electric
F02D 13/04
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
13Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
02during engine operation
04using engine as brake
F02D 23/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
23Controlling engines characterised by their being supercharged
F02D 41/0005
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
41Electrical control of supply of combustible mixture or its constituents
0002Controlling intake air
0005during deceleration
Applicants Isao Kitsukawa
ISUZU MOTORS LIMITED
Tomohiro Sugano
Yoshiyuki Abe
Haruyo Kimura
Akira Iijima
Naoki Ishibashi
Syougo Sakashita
Inventors Isao Kitsukawa
Tomohiro Sugano
Yoshiyuki Abe
Haruyo Kimura
Akira Iijima
Naoki Ishibashi
Syougo Sakashita
Agents Staas & Halsey LLP
Priority Data 2010242531 28.10.2010 JP
Title
(EN) Engine system
Abstract
(EN)

An engine system for ensuring a sufficient boost pressure during engine braking and improving a braking force of a compression release brake. The system includes: a compression release brake device that operates a compression release brake to obtain a braking force during engine braking by forcibly opening an exhaust valve and releasing a compressive pressure near a compression top dead center of an engine; a power-assisted turbocharger including a turbine disposed on an exhaust passage of the engine and driven by exhaust, a compressor disposed on an intake passage and driven by a rotational torque of the turbine, and an electric motor that assists a drive force of the compressor; and an electric motor control unit that drives the electric motor when the compressor release brake is operated.