| 摘要 |
PURPOSE:To maintain the temperature of a lubricating oil at a normal value, by a method wherein the direction of flow of exhaust gas is controlled by a switch valve switched by means of the temperature of the open air, the one exhaust pipe passes through the lubricating oil when the temperature of the open air is low,and the other exhaust pipe passes through said oil after the pipe extends to the outside once when the temperature of the open air is high. CONSTITUTION:When the temperature of the open air is low, a switch valve 13 is operated, exhaust gas passes through the exhaust pipe 10 side piped to an exhaust port 3 after flowing through a lubricating oil 12, and the lubricating oil 12 is heated by the temperature of exhaust gas, resulting in proper maintenance of viscosity of the lubricating oil 12 and in reduction of wear of a machine. When the temperature of the open air is high, by means of the switch valve 13, the exhaust gas flows through the air at the upper part in a casing 1 and is fed to the outside once, and after the exhaust gas is reduced in temperature, it flows through the exhaust pipe 10 side leading to a discharge port 3' after passing through the lubricating oil 12, resulting in prevention of an increase in the temperature of the lubricating oil 12. This permits the lubricating oil 12 to be kept at a proper viscosity, and enables reduction of wear of a machine part. |
