公开(公告)号：US20240271586A1

公开(公告)日：2024-08-15

申请号：US18535887

申请日：2023-12-11

Applicant: Cummins Inc.

Inventor： Raghuvaran Arumugam

IPC: F02F3/22 ,  F01M1/08 ,  F01M1/16

CPC classification number: F02F3/22 ,  F01M1/08 ,  F01M1/16

Abstract: Systems and apparatuses include a lubrication system having an engine piston defining a gudgeon pin aperture, a piston pooling cavity extending radially outward from the gudgeon pin aperture, a piston cooling gallery, and a piston lubrication passage. The piston lubrication passage is in fluid communication with the piston cooling gallery and the piston pooling cavity. The piston further includes a pin journal received in the gudgeon pin aperture of the engine piston and defining a journal aperture in fluid communication with the piston pooling cavity and a journal pooling cavity in fluid communication with the journal aperture. A gudgeon pin is received within the gudgeon pin aperture adjacent the pin journal, which provides fluid communication between the journal pooling cavity and the gudgeon pin.

公开(公告)号：US20230184162A1

公开(公告)日：2023-06-15

申请号：US18090815

申请日：2022-12-29

Applicant: Arctic Cat Inc.

Inventor： Eberhard Wizgall ,  Dominik Hermann

IPC: F02B75/16 ,  F01M9/10 ,  F01L1/02 ,  F02D13/02 ,  F02F7/00 ,  F01M1/06 ,  F01M1/08 ,  F01M11/00 ,  F01M11/12 ,  B60K17/24 ,  F01L1/047 ,  F01L1/24 ,  F04D29/06 ,  F04D29/046 ,  F04D29/66 ,  F16C3/14 ,  F16F15/26 ,  F01P5/12

CPC classification number: F02B75/16 ,  B60K17/24 ,  F01L1/022 ,  F01L1/047 ,  F01L1/2405 ,  F01M1/06 ,  F01M1/08 ,  F01M9/10 ,  F01M11/0004 ,  F01M11/12 ,  F01P5/12 ,  F02D13/0226 ,  F02D13/0242 ,  F02F7/0043 ,  F04D29/046 ,  F04D29/061 ,  F04D29/669 ,  F16C3/14 ,  F16F15/264 ,  F01M2001/062 ,  F01M2011/0087

Abstract: Embodiments are directed toward an engine. In some embodiments, the engine includes a water pump and a balancer shaft. In some embodiments, the water pump has a plain bearing. In some embodiments, plain bearing is supplied with pressurized oil. In some embodiments, the balancer shaft drives the water pump as well as cam shafts.

公开(公告)号：US20230063658A1

公开(公告)日：2023-03-02

申请号：US17891836

申请日：2022-08-19

Applicant: Mazda Motor Corporation

Inventor： Hirotsugu Matsuda ,  Kenji Uchida

IPC: F02F3/22 ,  F02F3/26 ,  F01M1/08 ,  F01M1/02 ,  F01M1/16

Abstract: A piston structure of an engine includes a piston having a crown part including a crown surface defining a combustion chamber, and an opposite back surface, an oil jet, a center-side first cavity and an outer-circumference-side second cavity formed inside the crown part and partitioned from each other, each cavity including a ceiling surface on the combustion chamber side and an opposite bottom surface, a communicating hole that is formed in a partitioning wall between the cavities, an introduction hole that is formed in the bottom surface of the first cavity and introduces into the first cavity oil injected toward the back surface from the oil jet, and a discharge hole that is formed in the bottom surface of at least one cavity and discharges the oil. The ceiling surface of the second cavity is located on the combustion chamber side of the ceiling surface of the first cavity.

公开(公告)号：US11421553B2

公开(公告)日：2022-08-23

申请号：US16353331

申请日：2019-03-14

Applicant: United Technologies Corporation

Inventor： Todd A. Davis ,  Gianna E. Sabino

IPC: F01D25/20 ,  F01M1/08 ,  F01M11/02 ,  F02C7/06

Abstract: A rotating structure provides a first annular array of first radial scoops and a second annular array of second radial scoops arranged axially with respect to the first annular array of first radial scoops. A first component is arranged in an axially forward direction relative to the first annular array of first radial scoops. A second component is arranged in an axially aft direction relative to the second annular array of second radial scoops. A lubrication system includes at least one nozzle aimed at the first and second annular arrays of first and second radial scoops. A first lubrication delivery path fluidly connects the first annular array of first radial scoops to the first component along the axially forward direction. A second lubrication delivery path fluidly connects the second annular array of second radial scoops to the second component along the axially aft direction.

公开(公告)号：US11384720B2

公开(公告)日：2022-07-12

申请号：US17459473

申请日：2021-08-27

Applicant: Volkswagen Aktiengesellshaft

Inventor： Gerson Hartwig ,  Dirk Franke

IPC: F01M1/08 ,  F01M9/10 ,  F02M41/12 ,  F02M41/14

Abstract: A distribution device for distributing fluid flows, having a main passage and having a multiplicity of discharge passages branching off from the main passage, wherein the distribution device is designed to distribute a fluid flow entering the main passage among the discharge passages. An inner passage is arranged inside the main passage, wherein the inner passage is designed to conduct fluid that enters the inner passage to at least one of the discharge passages, and wherein the distribution device has a shutoff device for shutting off a fluid flow entering the inner passage from the main passage.

公开(公告)号：US11333057B2

公开(公告)日：2022-05-17

申请号：US16621936

申请日：2018-06-12

Applicant: BONTAZ CENTRE R & D

Inventor： Frédéric Daniel Bernard Pineau ,  Marc Eugène Talotti ,  Arnaud Guy Sappey

IPC: F16B39/10 ,  F01P3/08 ,  F01M1/08 ,  F01P3/00

Abstract: A captive screw spray nozzle comprising a screw for holding the spray nozzle on a support, the screw comprising a screw head engaging with a holding member, secured to the spray nozzle, and forming a stop for retaining the captive screw on the spray nozzle.

公开(公告)号：US11143066B2

公开(公告)日：2021-10-12

申请号：US16237883

申请日：2019-01-02

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Dale E. Murrish ,  Luke Luehr ,  Scott A. Hucker ,  Varoon Shankar ,  Jeremy T. Demarest

IPC: F01M1/06 ,  F01M11/02 ,  F01M1/16 ,  F01M1/08

Abstract: A crankshaft assembly for a vehicle, a method of operating a crankshaft assembly, and a method of manufacturing a crankshaft assembly. The crankshaft assembly includes a crankshaft, a first pin bearing journal and a main journal, an oil passage having a main passage wall, the oil passage extending from the first pin bearing journal to or through the main bearing journal, a crankpin exit hole located in the main passage wall, and a blocking element positioned in the oil passage, wherein the blocking element is located in a radially outward position with respect to the crankpin exit hole.

公开(公告)号：US11008907B2

公开(公告)日：2021-05-18

申请号：US16543914

申请日：2019-08-19

Applicant: Hyundai Motor Company ,  Kia Motors Corporation

Inventor： Min Yong Lee ,  Seong Sik Kim ,  Jun Sik Park

IPC: F01M1/16 ,  F01M1/08 ,  F01M1/02

Abstract: An apparatus for controlling oil pump pressure includes a sensor for sensing knocking of an engine, an oil pump configured to determine a pressure for discharging engine oil toward a piston of the engine, and a control unit configured to control the pressure of the engine oil discharged toward the piston by determining whether the knocking occurs based on a parameter transmitted from the sensor for determining whether the knocking occurs, and by controlling the oil pump based on whether the knocking occurs in the engine.

公开(公告)号：US10989356B2

公开(公告)日：2021-04-27

申请号：US16284554

申请日：2019-02-25

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Adam G. Smedresman ,  Yuk-Kwan Brian Yuen

IPC: F16N21/04 ,  B05B1/00 ,  B05B15/14 ,  F01M1/08 ,  F01D25/16 ,  F01D25/18 ,  B05B15/65 ,  F16N21/00

Abstract: An oil nozzle assembly is disclosed. In various embodiments, the assembly includes a nozzle body oriented along an axial center line, comprising a main portion, and a tip portion connected to the main portion; a nozzle insert, comprising a sleeve, an end wall connected to the sleeve, an orifice disposed in the end wall, the orifice fluidly coupled to the tip portion, and a first finger extending axially from the end wall; and a retaining ring configured to engage the first finger to the nozzle body.

公开(公告)号：US10961881B2

公开(公告)日：2021-03-30

申请号：US16909265

申请日：2020-06-23

Applicant: HANS JENSEN LUBRICATORS A/S

Inventor： Nick Paw Bennedsen

IPC: F01M1/08 ,  F01M11/02 ,  F01M1/20 ,  F02F1/20 ,  F16N7/38

Abstract: Disclosed is lubrication for a slow-running two-stroke engine, especially marine diesel engines. The lubrication uses Swirl Injection Principle by locating the lubricant injectors closer to the TDC than ⅕ of the full stroke of the piston, which is closer than in typical marine diesel engines. This can be achieved by reconstructing cylinder liners or by adding new mounting holes to the cylinder. In case that such reconstruction is not possible, an improvement of SIP principles can also be achieved by directing the spray towards the TDC or to a location on the cylinder liner closer to the TDC as compared to the location of the SIP valves, for example under an angle of more than 30 degrees or even more than 60 degrees when measured from a plane normal to the cylinder axis.