Abstract: A marine engine includes a first turbocharger, a first intercooler, a second turbocharger, a second intercooler, an oil filter, and a top cover. The first turbocharger and the second turbocharger supply air by using an exhaust gas. The first intercooler and the second intercooler cool gases having passed through the turbochargers, respectively. The top cover is a cover arranged in an upper region of the marine engine. These devices are arranged so as not to overlap one another when seen in the thickness direction of the top cover.

Abstract: A ship engine includes a first turbocharger, a first intercooler, a second turbocharger, and a second intercooler. The first turbocharger is arranged at one end of the ship engine with respect to a crank axis direction. The first intercooler and the second turbocharger are arranged in an end portion of the ship engine with respect to a device width direction. The first intercooler and the second turbocharger are arranged side by side in the crank axis direction. The second intercooler is arranged at the other end (at the side opposite to the side where the first turbocharger is arranged) of the ship engine with respect to the crank axis direction.

Abstract: A marine engine includes an exhaust manifold, a valve cover, a top cover, and a fuel supply pipe. The exhaust manifold collects exhaust gases discharged from a plurality of cylinders. The valve cover is a cover that covers all of a plurality of valves for air intake or air discharge to or from the cylinders. The top cover is a cover that covers the valve cover. The fuel supply pipe is arranged in a space between the valve cover and the top cover, and allows a fuel to flow therethrough. The top cover is provided with a partition that is arranged so as to separate the side where the exhaust gas flows immediately after being discharged from the exhaust manifold from the side where the fuel supply pipe is arranged.

Abstract: A marine engine includes a first turbocharger, a first intercooler, a second turbocharger, a second intercooler, an oil filter, and a top cover. The first turbocharger and the second turbocharger supply air by using an exhaust gas. The first intercooler and the second intercooler cool gases having passed through the turbochargers, respectively. The top cover is a cover arranged in an upper region of the marine engine. These devices are arranged so as not to overlap one another when seen in the thickness direction of the top cover.

Abstract: A ship engine includes a first turbocharger, a first intercooler, a second turbocharger, and a second intercooler. The first turbocharger is arranged at one end of the ship engine with respect to a crank axis direction. The first intercooler and the second turbocharger are arranged in an end portion of the ship engine with respect to a device width direction. The first intercooler and the second turbocharger are arranged side by side in the crank axis direction. The second intercooler is arranged at the other end (at the side opposite to the side where the first turbocharger is arranged) of the ship engine with respect to the crank axis direction.

Abstract: An engine provided with a variable parallel supercharging system (9) comprising a first supercharger (10) which is driven by exhaust gas which flows in a first exhaust gas route (41) and which pressurizes intake air which flows in a first intake air route (3) and also comprising a second supercharger (20) which is driven by exhaust gas which flows in a second exhaust gas route (42) and which pressurizes intake air which flows in a second intake air route (4), a supercharging pressure sensor (63) for detecting the pressure of the pressurized intake air, a first supercharger rotation sensor (61) for detecting the rotational speed of the first supercharger (10), a second supercharger rotation sensor (62) for detecting the rotational speed of the second supercharger (20), a first variable actuator (14) for adjusting the capacity of the first supercharger (10), a second variable actuator (24) for adjusting the capacity of the second supercharger (20), and a control device for controlling each of the variable actua

Abstract: An engine (100) provided with a variable series supercharging system (7) composed of a high-pressure supercharger (10) and a low-pressure supercharger (20), a supercharging pressure sensor (63) for detecting the pressure of intake air pressurized by the variable series supercharging system (7), a high-pressure supercharger rotation sensor (61) for detecting the rotational speed of the high-pressure supercharger (10), a variable actuator (14) for adjusting the capacity of the high-pressure supercharger (10), and a control device (60) capable of controlling the variable actuator (14). The control device (60) controls the variable actuator (14) based on detection signals from the supercharging pressure sensor (63) and the high-pressure supercharger rotation sensor (61).

Abstract: An engine provided with a variable parallel supercharging system (9) comprising a first supercharger (10) which is driven by exhaust gas which flows in a first exhaust gas route (41) and which pressurizes intake air which flows in a first intake air route (3) and also comprising a second supercharger (20) which is driven by exhaust gas which flows in a second exhaust gas route (42) and which pressurizes intake air which flows in a second intake air route (4), a supercharging pressure sensor (63) for detecting the pressure of the pressurized intake air, a first supercharger rotation sensor (61) for detecting the rotational speed of the first supercharger (10), a second supercharger rotation sensor (62) for detecting the rotational speed of the second supercharger (20), a first variable actuator (14) for adjusting the capacity of the first supercharger (10), a second variable actuator (24) for adjusting the capacity of the second supercharger (20), and a control device for controlling each of the variable actua

Abstract: An engine (100) provided with a variable series supercharging system (7) composed of a high-pressure supercharger (10) and a low-pressure supercharger (20), a supercharging pressure sensor (63) for detecting the pressure of intake air pressurized by the variable series supercharging system (7), a high-pressure supercharger rotation sensor (61) for detecting the rotational speed of the high-pressure supercharger (10), a variable actuator (14) for adjusting the capacity of the high-pressure supercharger (10), and a control device (60) capable of controlling the variable actuator (14). The control device (60) controls the variable actuator (14) based on detection signals from the supercharging pressure sensor (63) and the high-pressure supercharger rotation sensor (61).