Engine device
AssigneeYanmar Power Technology Co., Ltd.
InventorMasataka Uchibori
Life of this patent
Estimating the term…
Abstract
An engine device includes an exhaust manifold disposed on one of left and right sides of a cylinder head, and an intake manifold disposed on another one of the left and right sides of the cylinder head. The engine device further includes a turbocharger that uses fluid energy of an exhaust gas discharged from the exhaust manifold to compress fresh air to be flowed into the intake manifold. The turbocharger is constituted by a two-stage turbocharger including a high-pressure turbocharger coupled to the exhaust manifold and a low-pressure turbocharger coupled to the high-pressure turbocharger. The high-pressure turbocharger is disposed on one of left and right lateral sides of the exhaust manifold, while the low-pressure turbocharger is disposed above the exhaust manifold.
Claims9
An engine device comprising:
- an exhaust manifold and an intake manifold, disposed in a cylinder head;
- and
- a turbocharger that compresses fresh air flowing into the intake manifold using fluid energy of exhaust gas discharged from the exhaust manifold,
- wherein the turbocharger comprises a two-stage turbocharger including a high-pressure turbocharger connected to the exhaust manifold and a low-pressure turbocharger connected to the high-pressure turbocharger;
- whereas an exhaust gas tube connects substantially in a horizontal direction to the high-pressure turbocharger and bends to connect substantially in a vertical direction to the low-pressure turbocharger;
- and a center of the low-pressure turbocharger is located on a cylinder head side compared to a center of the high-pressure turbocharger in a front plan view, and the turbocharger has an intake gas tube that has a bending portion and is connected to the low-pressure turbocharger and the high-pressure turbocharger.
An engine device comprising:
- an exhaust manifold and an intake manifold, disposed in a cylinder head;
- and
- a turbocharger that compresses fresh air flowing into the intake manifold using fluid energy of exhaust gas discharged from the exhaust manifold,
- wherein the turbocharger comprises a two-stage turbocharger including a high-pressure turbocharger connected to the exhaust manifold;
- and a low-pressure turbocharger connected to the high-pressure turbocharger;
- whereas a first exhaust gas tube connects in a horizontal direction from the exhaust manifold to the high-pressure turbocharger and a second exhaust gas tube connects in a vertical direction from the high-pressure turbocharger to the low-pressure turbocharger;
- and
- the center of gravity of the low-pressure turbocharger is located on a cylinder head side compared to the center of gravity of the high-pressure turbocharger and in a vertical plane above where the exhaust gas manifold is coupled to the high pressure turbocharger, and the turbocharger has an intake gas tube that has a bending portion and is connected to the low-pressure turbocharger and the high-pressure turbocharger.
An engine device comprising:
- an exhaust manifold and an intake manifold, disposed in a cylinder head;
- and
- a turbocharger that compresses fresh air flowing into the intake manifold using fluid energy of exhaust gas discharged from the exhaust manifold,
- wherein the turbocharger comprises a two-stage turbocharger including a high-pressure turbocharger connected to the exhaust manifold and a low-pressure turbocharger connected to the high-pressure turbocharger;
- whereas an exhaust gas tube connects substantially in a horizontal direction to the high-pressure turbocharger and bends to connect substantially in a vertical direction to the low-pressure turbocharger;
- and a center of the low-pressure turbocharger is located on a cylinder head side compared to a center of the high-pressure turbocharger in a front plan view,
- wherein a low-pressure compressor of the low-pressure turbocharger has a fresh air inlet and the fresh air outlet both facing toward one of front and rear of the engine.
Dependencies are inferred from the claim text.