公开(公告)号：US11927127B1

公开(公告)日：2024-03-12

申请号：US18298722

申请日：2023-04-11

申请人： S&S CYCLE, INC.

发明人： Gavin Burch

IPC分类号： F01P3/08 ,  F01P3/06 ,  B05B1/06 ,  F01M1/08

CPC分类号： F01P3/08 ,  F01P3/06 ,  B05B1/06 ,  F01M1/08

摘要： Piston cooling jet devices, or spray jet devices, for spraying oil onto an underside of a piston are provided. The spray jet devices may include two or more orifices such that oil is directed at an intake side portion and an exhaust side portion of the piston when the spray jet devices are selectively coupled to an engine. The spray jet devices may further include a valve to selectively control the flow of oil through a fluid passageway to the two or more orifices. For example, a check valve may be positioned and located such that the spray jet devices do not spray oil when the pressure of the oil system is less than a threshold value.

公开(公告)号：US20230374931A1

公开(公告)日：2023-11-23

申请号：US18143038

申请日：2023-05-03

申请人： Caterpillar Energy Solutions GmbH

发明人： Sebastian OHLER ,  Olaf BERGER

IPC分类号： F01P7/16 ,  F01P3/08

CPC分类号： F01P7/16 ,  F01P3/08 ,  F01P2025/08 ,  F01P2025/04

摘要： The present invention pertains A cooling system for a gas engine piston, the system comprising a cooling oil supply configured to feed a cooling oil flow to the gas engine piston, and a control device configured to control the cooling oil flow based at least on a predetermined parameter. The present invention further pertains to a gas engine comprising at least one gas engine piston and a cooling system according to any of the previous claims, wherein the gas engine piston is configured to be operable with at least one combustion gas. In addition, the present disclosure pertains to a cooling method for a gas engine piston, comprising the steps of receiving at least one predetermined parameter at the control device; controlling the cooling oil flow based on at least the predetermined parameter; and observing a sufficient cooling oil flow fed to the gas engine piston.

公开(公告)号：US11649745B2

公开(公告)日：2023-05-16

申请号：US17378092

申请日：2021-07-16

申请人： Volkswagen Aktiengesellschaft

发明人： Julian Gens ,  Christian Ledwig

IPC分类号： F01M1/20 ,  F01P3/08 ,  F01M1/08

CPC分类号： F01M1/20 ,  F01M1/08 ,  F01P3/08 ,  F01M2250/60 ,  F01M2250/64

摘要： A diagnostic method for an oil piston cooling jet valve of an oil pressure system of an internal combustion engine of a motor vehicle, including: Driving the OPCJ valve for detecting oil pressure diagnostic data if multiple enabling conditions have been met, the multiple enabling conditions including: Presence of a stationary operation of the internal combustion engine; presence of a predetermined operating range; presence of an oil temperature within a predetermined oil temperature range; prevention of a scheduled driving of the OPCJ valve for regular piston cooling; and prevention of an error of the oil pressure system. The diagnostic method further including: Determining whether an oil pressure measuring point is within a predefined oil pressure measuring point range. The invention further relates to a diagnostic device, a control unit and a motor vehicle, which are each suitable or configured for carrying out the method.

公开(公告)号：US09976513B2

公开(公告)日：2018-05-22

申请号：US15017724

申请日：2016-02-08

申请人： FORD GLOBAL TECHNOLOGIES, LLC

发明人： Frank Acierno Valencia

IPC分类号： F02F3/22 ,  F02F3/20 ,  F01P3/08 ,  F02F3/00 ,  F02P3/10

CPC分类号： F02F3/20 ,  F01P3/08 ,  F02F3/0076 ,  F02F3/22 ,  F02P3/10

摘要： A piston of an internal combustion engine is provided and includes a piston skirt enclosing at least a portion of an underside of a piston crown. A cooling oil passageway is provided on the underside of the piston and extends from a first part to a second part of the underside, where the first part is closer than the second part to a fluid flow from a cooling oil source. The cooling oil passageway may include a main channel and a branch channel extending from the main channel at an angle.

公开(公告)号：US09945274B2

公开(公告)日：2018-04-17

申请号：US14914064

申请日：2014-07-29

申请人： NISSAN MOTOR CO., LTD.

发明人： Satoru Okuma ,  Takashi Tanabe ,  Katsuya Moteki

IPC分类号： F01M11/02 ,  F01M1/06 ,  F02B75/04 ,  F01M1/08 ,  F02B75/32 ,  F01P3/08 ,  F02D15/02

CPC分类号： F01M1/06 ,  F01M1/08 ,  F01M2001/083 ,  F01P3/08 ,  F02B75/04 ,  F02B75/045 ,  F02B75/32 ,  F02D15/02

摘要： When the compression ratio of a variable compression ratio internal combustion engine (10) is set at a low compression ratio, a lubricating oil ejected from a lower link oil passage (25) is reflected by an upper link (11) at the piston top dead center, and supplied to a cylinder inside wall surface on the side on which a control link (15) is located in a view as viewed in the axial direction of the crank shaft. When the compression ratio of the variable compression ratio internal combustion engine (10) is set at a high compression ratio, the lubricating oil ejected from lower link oil passage (25) is reflected by upper link (11) at the piston top dead center, and supplied to the back side of the piston crown.

公开(公告)号：US20170350304A1

公开(公告)日：2017-12-07

申请号：US15480666

申请日：2017-04-06

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Akira YAMASHITA

IPC分类号： F01P5/12 ,  F01P7/14 ,  F01P3/08 ,  F01P3/10 ,  F02F3/00

CPC分类号： F01P5/12 ,  F01M1/08 ,  F01P3/08 ,  F01P3/10 ,  F01P7/14 ,  F01P2005/105 ,  F01P2005/125 ,  F01P2007/146 ,  F02F3/0092 ,  F02F3/22 ,  F05C2251/048

摘要： A cooling cavity is provided inside a piston of an internal combustion engine. Inlet/outlet holes of the cooling cavity are provided in a bottom surface of the piston. A first oil jet that sprays oil toward the inlet/outlet hole, a second oil jet that sprays oil toward a part different from the inlet/outlet hole are included. The first oil jet is caused to spray oil in preference to the second oil jet.

公开(公告)号：US09670803B2

公开(公告)日：2017-06-06

申请号：US14624177

申请日：2015-02-17

申请人： Ford Global Technologies, LLC

发明人： Ian Graham Pegg ,  Roland Paul Stark

IPC分类号： F01M11/00 ,  F01P3/08

CPC分类号： F01M11/0004 ,  F01M2011/0033 ,  F01M2011/0091 ,  F01P3/08

摘要： A crankcase oil catcher configured for placement above a crankshaft and below a piston is described. In one particular example, the crankcase oil catcher has a contour that catches dispersed oil within the crankcase while directing the oil away from a casing wall and towards a crank sump along the contoured surface of the crankcase oil catcher. Inclusion of an aperture within the surface allows for passage of a connecting rod of the crankshaft while providing for a protruding lip around the perimeter of the aperture that prevents oil on the top surface from falling through the aperture.

公开(公告)号：US20160369740A1

公开(公告)日：2016-12-22

申请号：US15121527

申请日：2015-03-05

申请人： ACHATES POWER INC.

发明人： RYAN G. MACKENZIE

IPC分类号： F02F3/22 ,  F16C9/04 ,  F16J1/16 ,  F02F3/26 ,  F02B75/28

CPC分类号： F02F3/22 ,  F01B7/02 ,  F01M1/06 ,  F01M1/08 ,  F01M2001/066 ,  F01P3/08 ,  F02B25/08 ,  F02B75/28 ,  F02B75/282 ,  F02F3/225 ,  F02F3/26 ,  F16C9/04 ,  F16J1/16

摘要： Pressurized lubricating oil is accumulated in the bearings of opposed pistons and accumulated oil is dispensed therefrom for bearing lubrication and also for cooling the under-crowns of the pistons by jets of oil emitted from the bearings.

摘要翻译： 加压润滑油积聚在相对的活塞的轴承中，并且从其中分配积聚的油以用于轴承润滑，并且还用于通过从轴承排出的油喷射来冷却活塞的下冠。

公开(公告)号：US20160363040A1

公开(公告)日：2016-12-15

申请号：US14922859

申请日：2015-10-26

申请人： Hyundai Motor Company ,  Kia Motors Corporation

发明人： Seung Bum KIM

IPC分类号： F01P11/14 ,  F01P3/08

CPC分类号： F01P11/14 ,  F01M1/08 ,  F01M1/16 ,  F01M2250/00 ,  F01P3/08 ,  F01P11/18 ,  F01P2003/006

摘要： An apparatus for diagnosing failure of a piston cooling jet of an engine includes an oil line for a piston cooling jet arranged in a cylinder block in a longitudinal direction, a piston cooling jet mounted at the oil line for the piston cooling jet to inject oil to a piston, a solenoid valve mounted at an inlet of the oil line for the piston cooling jet to selectively allow an injection operation of the piston cooling jet, an oil pressure detecting means mounted at the oil line for the piston cooling jet after the solenoid valve to detect oil pressure, and a control unit configured to receive a detection signal of the oil pressure detecting means and determine whether the solenoid valve is in a failure state.

摘要翻译： 用于诊断发动机的活塞冷却喷射的故障的装置包括：沿纵向布置在气缸体中的用于活塞冷却喷流的油管，安装在用于活塞冷却喷嘴的油管上的活塞冷却喷嘴以将油喷射到 活塞，安装在用于活塞冷却射流的油管入口处的选择性地允许活塞冷却射流的喷射操作的电磁阀，安装在用于活塞冷却射流的油管上的油压检测装置，在电磁阀 以检测油压，以及控制单元，被配置为接收油压检测装置的检测信号，并确定电磁阀是否处于故障状态。

公开(公告)号：US20160186642A1

公开(公告)日：2016-06-30

申请号：US14910857

申请日：2014-06-09

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA ,  TAIHO KOGYO CO., LTD.

发明人： Akihiro HONDA ,  Motoichi MURAKAMI ,  Masahiro KAWAHARA ,  Norio IMAI

IPC分类号： F01P3/08 ,  F01M1/08

CPC分类号： F01P3/08 ,  F01M1/08 ,  F01M2001/083

摘要： A body of an oil jet is provided with: an oil supply port; a cylinder; and an oil injection port. A piston valve is accommodated in the cylinder. The piston valve forms in the cylinder a differential pressure room which is a closed compartment. In the piston valve, an orifice which makes the differential pressure room being communicated with a side of the oil supply port is formed. The piston valve is biased toward a position at which the oil injection port is closed by a spring. A first oil injection nozzle is connected to the oil injection port. A leak hole which allows oil to be leaked outside of the cylinder from the differential pressure room is open at the side surface of the cylinder. Further, a second oil injection nozzle is connected to the leak hole.

摘要翻译： 一个喷油机体设有：供油口; 圆筒 和注油口。 活塞阀容纳在气缸中。 活塞阀在气缸中形成一个隔离室，它是一个封闭的隔间。 在活塞阀中，形成使压差室与供油口一侧连通的孔口。 活塞阀被弹簧偏压到注油口关闭的位置。 第一喷油嘴与注油口连接。 允许油从压差室泄漏到气缸外部的泄漏孔在气缸的侧表面处是敞开的。 此外，第二注油喷嘴连接到泄漏孔。