Engine device

a technology of engine and exhaust gas, which is applied in the direction of machines/engines, electric control, combustion-air/fuel-air treatment, etc., can solve the problems of affecting environmental preservation and large number of exhaust emissions, and achieve the elimination or minimization of the amount of air needed for combustion, and the effect of increasing trackability
US20180355807A9Active Publication Date: 2018-12-13YANMAR POWER TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
YANMAR POWER TECHNOLOGY CO LTD
Publication Date
2018-12-13

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Abstract

An engine device includes a main throttle valve disposed at a portion where an outlet of a supercharger and an inlet of an intercooler are coupled to each other, an exhaust bypass flow path configured to couple an outlet of an exhaust manifold to an exhaust outlet of the supercharger, an exhaust bypass valve disposed in the exhaust bypass flow path, an air supply bypass flow path configured to bypass a compressor of the supercharger, and an air supply bypass valve disposed in the air supply bypass flow path. Within a low load range of a load on the engine device, when the load is lower than a predetermined load, feedback control is performed on the main throttle valve, and when the load is higher than the predetermined load, map control based on a data table is performed on the main throttle valve.
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Description

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] The present application is a continuation application of International Application No. PCT / JP2015 / 065455, filed May 28, 2015, which claims priority to Japanese Patent Application No. 2014-118036, filed Jun. 6, 2014, Japanese Patent Application No. 2014-118037, filed Jun. 6, 2014. The contents of these applications are incorporated herein by reference in their entirety.BACKGROUND OF THE INVENTION

[0002] The present invention relates to an engine device.

[0003] Heretofore, in ships, such as a tanker and a transport ship, and land-based power generation facilities, diesel engines have been used as their driving sources. Exhaust gas discharged from such a diesel engine, unfortunately, contains a large number of exhaust emissions, such as oxides of nitrogen, oxides of sulfur, and particulate matter, that are likely to become harmful substances that impede environmental preservation. For this reason, recently, a gas engine, one of engines each serv...

Claims

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