Patent ID: 9671008
Date: 2017-06-06
CPC Classifications: F04C,F16H

Claim:
1. An oil suction device for a vehicle comprising: a mechanical oil pump driven by a rotation transmitted from a driving source of the vehicle; and a suction pipe connected to a suction end side of the oil pump, the suction pipe for sucking oil in an oil storing section, wherein the suction pipe comprises: a first suction pipe having an outflow end connected to the oil pump; a second suction pipe relatively movably arranged to the first suction pipe; a first suction port installed at an inflow end of the second suction pipe, the first suction port for sucking oil in the oil storing section; and a second suction port installed on a downstream side of the first suction port of the second suction pipe, and wherein a first state of sucking operation for sucking only oil in the oil storing section from the first suction port and the second suction port, a second state of sucking operation for sucking oil in the oil storing section from the first suction port and air from the second suction port, and a third state of sucking operation for sucking air from a third suction port either in the first state of sucking operation or in the second state of sucking operation, the third suction port formed due to a relative movement of the second suction pipe to the first suction pipe at a suction pressure of the oil pump exceeding a predetermined pressure, the first state of sucking operation, the second state of sucking operation and the third state of sucking operation switch depending on an oil level of the oil storing section in relation to the second suction port.