The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 10, 2015
Filed:
Dec. 28, 2011
Daisuke Takemoto, Tokyo, JP;
Daisuke Takemoto, Tokyo, JP;
MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo, JP;
Abstract
Disclosed is an oil jet device for cooling a piston, including: an oil coolerthat is disposed upstream of an oil injection nozzle; an oil pumpthat is disposed upstream of the oil cooler; a first switching adjustment valvethat is disposed between the oil injection nozzleand the oil coolerand adjusts a flow dividing ratio at which the cooling oil from the oil cooleris distributed to the oil injection nozzleside and to an oil pan side; and a control unit that has an oil quantity adjustment mapfor switching the first switching adjustment valvebased on a piston temperature calculation mapfor calculating the temperature of the pistonusing detection values acquired respectively by a cooling water temperature sensor, a rotation speed sensorand a load sensor