公开(公告)号：US11591937B2

公开(公告)日：2023-02-28

申请号：US16771086

申请日：2017-12-13

Applicant: Cummins Inc.

Inventor： David M. Barnes ,  Kevin C. Augustin, Sr.

IPC: F01L1/02 ,  F01L1/20 ,  F16H57/12

Abstract: The present disclosure provides a remote mount for an idler gear assembly, comprising: a gear mounting plate including a plurality of bores configured to receive a corresponding plurality of fasteners to mount a gear assembly to the gear mounting plate; and an attachment bracket including a plurality of mounting openings configured to receive a corresponding plurality of bolts to mount the remote mount to a cylinder head. The gear mounting plate supports the gear assembly such that a gear of the gear assembly rotates about an axis that is parallel to an axis of a crankshaft of an engine and the attachment bracket mounts to an upper surface of the cylinder head.

公开(公告)号：US20230052834A1

公开(公告)日：2023-02-16

申请号：US17968016

申请日：2022-10-18

Applicant: Timothy B. King

Inventor： Timothy B. King

IPC: F01N13/08 ,  F02D13/02 ,  F02B61/02 ,  F01L5/20 ,  F01L1/02 ,  F01L5/02

Abstract: A method of operation of exhaust valves of an adjustable exhaust port 2-stroke motorcycle engine with a two stage exhaust valve system includes: providing a control rod mechanically coupled to a governor, so that the governor causes a rotation of the control rod. A first stage exhaust valve, a second stage left exhaust valve, and a second stage right exhaust valve are also controllably linked to the control rod; and operating the second stage left exhaust valve and the second stage right exhaust valve by opening at least one of the second stage left exhaust valve and the second stage right exhaust valve before the first stage exhaust valve is completely open in an overlap operation. Related methods and structures for overlap, and/or stagger, and/or limiter operation of exhaust valves of an adjustable exhaust port 2-stroke motorcycle engine are also described.

公开(公告)号：US20220412236A1

公开(公告)日：2022-12-29

申请号：US17756550

申请日：2020-11-26

Applicant: Piaggio & C. S.p.A.

Inventor： Walter Mariotti

IPC: F01L1/344 ,  F01L1/02 ,  F01L1/047

Abstract: A camshaft for a multi-cylinder internal combustion engine with poppet valves, comprising a main body, which is rotatable with respect to a first rotation axis, a first disk and means of the hydraulic type for varying the timing of said first disk with respect to said main body.

公开(公告)号：US20220372897A1

公开(公告)日：2022-11-24

申请号：US17875839

申请日：2022-07-28

Applicant: LSE R&D ENGINEERING LIMITED

Inventor： Allen Eugene Looney

IPC: F01L7/18 ,  F01L1/02 ,  F01L1/12 ,  F01L1/26 ,  F16H1/06 ,  F02F1/22 ,  F01L7/06 ,  F01L7/14 ,  F02F7/00

Abstract: A valve system/method suitable for an internal combustion engine (ICE), compressor pump, vacuum pump, and/or reciprocating mechanical device is disclosed. The system/method is optimized for construction of a four-stroke ICE. The rudimentary system incorporates an intake engine block cover (IEC) and exhaust engine block cover (EEC) that enclose an intake rotary valve disc (IVD) and exhaust rotary valve disc (EVD) that control intake/exhaust flow through a respective intake rotary valve port (IVP) and an exhaust rotary valve port (EVP) into and out of a combustion cylinder that provides power to a piston and crankshaft. An intake multi-staged valve (IMV) and exhaust multi-staged valve (EMV) provide intake and exhaust flow control for the IVD/IVP and EVD/EVP. An enhanced system may include a variety of intake/exhaust port seals (IPS/EPS), forced induction/discharge (FIN), centrifugal advance (CAD), and/or cooling channel spool (ICS/ECS).

公开(公告)号：US11352918B1

公开(公告)日：2022-06-07

申请号：US17180722

申请日：2021-02-20

Applicant: Anthony John Peila

Inventor： Anthony John Peila

IPC: F01L1/348 ,  F01L1/02 ,  F01L1/46 ,  F01L13/00 ,  F01L1/053

Abstract: This invention describes a variable valve timing mechanism which may be fitted to an internal combustion engine to provide precise control over timing of the valve opening and closing events of the camshaft relative to the crankshaft. Various methods for its application are described to provide settable valve timing at either predetermined angle selected by the operator, or automatic variable valve timing as governed by parameters of the operating engine. Said mechanism comprised of oppositely located idler rollers, whereas not bound to a single yoke or carrier, are driven by a cam to achieve independent movement of the rollers, which bear against both tension and slack sides of the belt between the crankshaft and camshaft pulleys causing predictable and repeatable variation in valve timing. Thus, this invention, whereby coordinated but non-uniform movements of the idler rollers is achieved by the mechanical appurtenances described herein, including a specially developed cardioid cam to actuate said idler rollers, produces precise changes in camshaft phase angle.

公开(公告)号：US11300017B2

公开(公告)日：2022-04-12

申请号：US16271845

申请日：2019-02-10

Applicant: ECO Holding 1 GmbH

Inventor： Udo Diederichs ,  Michael Brumm

IPC: F01L1/344 ,  F01L1/02 ,  F01L1/24

Abstract: A hydraulic valve for a cam phaser, the hydraulic valve including a bushing including a piston that is movable in a bore along a longitudinal direction; a supply connection configured to feed a hydraulic fluid; a first operating connection and a second operation connection; and a first tank drain connection and a second tank drain connection configured to drain the hydraulic fluid; and a first check valve associated with the first operating connection and a second check valve associated with the second operating connection, wherein the first operating connection and the second operating connection are connectable through at least one of the first check valve and the second check valve alternatively with each other or with the supply connection or with one of the first tank drain connection and the second tank drain connection by moving the piston, wherein the hydraulic valve includes five switching positions.

公开(公告)号：US11268606B2

公开(公告)日：2022-03-08

申请号：US16040833

申请日：2018-07-20

Applicant: Bayerische Motoren Werke Aktiengesellschaft

Inventor： Andreas Meder ,  Nikolaus Koller

IPC: F16H55/30 ,  F01L1/02

Abstract: A toothed wheel system for an internal combustion engine of a motor vehicle is provided. The least one tooth system has a plurality of teeth that follow one another in the circumferential direction of the gear wheel, and at least one elastomer track adjoining the tooth system in the axial direction. The elastomer track is formed as a regular polygon on the outer circumferential side. The number of sides of the polygon correspond to the number of teeth.

公开(公告)号：US11187115B2

公开(公告)日：2021-11-30

申请号：US17045610

申请日：2019-03-07

Applicant: Schaeffler Technologies AG & Co. KG

Inventor： Ali Bayrakdar

IPC: F01L1/34 ,  F01L1/344 ,  F01L1/047 ,  F01L1/02

Abstract: The disclosure relates to a camshaft adjusting device with a dry belt, a central valve arranged within a camshaft adjuster, and an actuator acting on the central valve. An oil-tight wet space is formed by the camshaft adjuster and the actuator or a component supporting the actuator, and oil present in the wet space can be evacuated by means of an oil path. A portion of this oil path extends axially through the output element of the camshaft adjuster. This oil path can pass the end-side contact face between the output element and camshaft, opening out into an axial bore of the camshaft which is distanced radially from the axis of rotation of the camshaft adjusting device. The axial bore runs beneath an oil feed connection formed on the outer surface of the camshaft for feeding oil to the central valve.

公开(公告)号：US11168589B2

公开(公告)日：2021-11-09

申请号：US16441063

申请日：2019-06-14

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Yoshiki Endo

IPC: F01L1/344 ,  F16H7/06 ,  F01L1/053 ,  F01L1/02

Abstract: An internal combustion engine includes exhaust-side and intake-side variable valve timing mechanisms, an oil passage defined in the cylinder head, an exhaust-side connection passage that branches from the oil passage to conduct oil to the exhaust-side variable valve timing mechanism, and an intake-side connection passage that branches from the oil passage to conduct oil to the intake-side variable valve timing mechanism. The connection passage that conducts oil to one of the exhaust-side variable valve timing mechanism and the intake-side variable valve timing mechanism that has a greater amount of oil leakage when oil having the same pressure is supplied to the variable valve timing mechanisms to operate the variable valve timing mechanisms is located at a downstream side in the oil passage of the connection passage that conducts oil to the variable valve timing mechanism that has a smaller amount of oil leakage.

公开(公告)号：US20210332748A1

公开(公告)日：2021-10-28

申请号：US17214982

申请日：2021-03-29

Applicant: YAMAHA MOTOR POWER PRODUCTS KABUSHIKI KAISHA

Inventor： Yoshiaki SUGITA ,  Kengo NISHI

IPC: F02B75/22 ,  F01L1/02 ,  F02B29/04 ,  F02B39/04 ,  F02B75/18

Abstract: An OHV engine includes V-shaped banks, a crank shaft, a cam shaft connected to the crank shaft, a mechanical supercharger located between the V-shaped banks, and a power transmission supported by the cam shaft and that connects the crank shaft to the mechanical supercharger. The power transmission includes a gear mechanism with a gear ratio not greater than a predetermined value, and includes a first gear supported rotatably by the cam shaft and that rotates based on an output from the crank shaft, a second gear provided on a rotation shaft of the mechanical supercharger, and an idle gear that connects the first and second gears with each other. Cylinders are offset with respect to a center of the crank shaft on an anti-thrust side of the cylinders, and the mechanical supercharger is also offset with respect to a center of the crank shaft on the anti-thrust side. Cylinder heads are provided with oil cooling paths adjacent respective spark plugs.