Yanmar Power Technology Co., Inc.

Yanmar Co., Ltd.

Panasonic Intellectual Property Management Co., Ltd.

Yanmar Power Technology Inc., Ltd.

Koichi Hirose

Katsuhiro Nishimura

Taishi Murakami

Tatsuro Ohsara

Yoshihiro Matsubara

Kunihiro Kawamoto

An engine including a main fuel injection valve, a pilot fuel injection valve, a liquid fuel supply rail pipe, and a pilot fuel supply rail pipe. The main fuel injection valve supplies liquid fuel from the liquid fuel supply rail pipe to a combustion chamber during combustion in a diffusion combustion system. The pilot fuel injection valve supplies pilot fuel from the pilot fuel supply rail pipe to the combustion chamber in order to ignite gaseous fuel during combustion in a premixed combustion system. The liquid fuel supply rail pipe is disposed at one side of an imaginary vertical plane including an axis of a crank shaft. The pilot fuel supply rail pipe is disposed at the side of the imaginary vertical plane at which the liquid fuel supply rail pipe is disposed.

Engine

An engine operable in a premixed combustion system and a diffusion combustion system. The engine includes a main fuel injection valve, a pilot fuel injection valve, a liquid fuel tank, a main fuel supply path, a pilot fuel supply path, a pilot fuel filter, a pilot fuel high-pressure pump, a pilot fuel tank, and a pilot fuel supply pump. The pilot fuel tank stores pilot fuel sent from the pilot fuel high-pressure pump and not injected by the pilot fuel injection valve. This pilot fuel is sent to an automatic backwash filter and a pilot fuel filter while not passing through the liquid fuel tank.

An engine including a main fuel injection valve, a pilot fuel injection valve, a liquid fuel supply rail pipe, and a pilot fuel supply rail pipe. The main fuel injection valve supplies liquid fuel from the liquid fuel supply rail pipe to a combustion chamber during combustion in a diffusion combustion system. The pilot fuel injection valve supplies pilot fuel from the pilot fuel supply rail pipe to the combustion chamber in order to ignite gaseous fuel during combustion in a premixed combustion system. The liquid fuel supply rail pipe is disposed at one side of an imaginary vertical plane (P) including an axis of a crank shaft. The pilot fuel supply rail pipe is disposed at the side of the imaginary vertical plane at which the liquid fuel supply rail pipe is disposed.

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.

Engine device

When a load on an engine device is lower than a first predetermined load falling within a low load range, feedback control is performed on a main throttle valve. When the load is higher than the first predetermined load, map control based on a data table is performed on the main throttle valve. When the load is higher than a second predetermined load higher than the first predetermined load, an opening degree of the main throttle valve is brought to a fully-open opening degree, and each of an exhaust bypass valve and an air supply bypass valve is controlled to allow pressure inside an intake manifold to be adjusted to a target value appropriate to the load.

A solar cell is provided with: a crystal substrate having n-type conductivity type as one conductivity type; an n-type semiconductor layer&#x2014;that is continuously laminated from a light receiving surface, i.e., one main surface of the crystal substrate, and a side surface of the crystal substrate; a p-type semiconductor layer, which is continuously laminated from a rear surface, i.e., the other main surface of the crystal substrate, and the side surface of the crystal substrate, and which has at least one part thereof overlapping, on the side surface of the crystal substrate, the n-type semiconductor layer; a light receiving surface-side transparent conductive film, which is, on the light receiving surface of the crystal substrate, laminated to the n-type semiconductor layer, and which has a smaller area than a planar shape of the crystal substrate; and a rear surface-side transparent conductive film laminated to the p-type semiconductor layer.

Growing community of inventors

Osaka, Japan

Koichi Hirose