Yanmar Co., Ltd.

Kazuhiro Takenaka

Takeshi Takahashi

Terumitsu Takahata

Takao Kawabe

Hidenori Nomura

Kazuki Maetani

An engine provided with a variable parallel supercharging system () comprising a first supercharger () which is driven by exhaust gas which flows in a first exhaust gas route () and which pressurizes intake air which flows in a first intake air route () and also comprising a second supercharger () which is driven by exhaust gas which flows in a second exhaust gas route () and which pressurizes intake air which flows in a second intake air route (), a supercharging pressure sensor () for detecting the pressure of the pressurized intake air, a first supercharger rotation sensor () for detecting the rotational speed of the first supercharger (), a second supercharger rotation sensor () for detecting the rotational speed of the second supercharger (), a first variable actuator () for adjusting the capacity of the first supercharger (), a second variable actuator () for adjusting the capacity of the second supercharger (), and a control device for controlling each of the variable actuators (). The control device controls the first variable actuator () based on detection signals from the supercharging pressure sensor () and the first supercharger rotation sensor () and controls the second variable actuator () based on detection signals from the supercharging pressure sensor () and the second supercharger rotation sensor ().

Engine

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

Growing community of inventors

Osaka, Japan

Kazuhiro Takenaka