公开(公告)号：US20190048764A1

公开(公告)日：2019-02-14

申请号：US15673731

申请日：2017-08-10

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Robert Gallon ,  David E. Mann ,  Charles L. Nicholson

IPC: F01L1/348 ,  F01L1/047 ,  F01L1/02

Abstract: A tensioner assembly for an engine timing drive includes a tensioner with a tensioner body having a fastener opening and defining a cavity with a plunger opening. A plunger is disposed in the cavity and a removable pin restrains the plunger in the cavity. The plunger is configured to be biased out of the plunger opening when the pin is removed. A protuberance extends outward from the tensioner body and is adapted to receive an applied torque. The tensioner body is configured to pivot about a center axis of the fastener opening in response to a predetermined torque applied to the protuberance. A method of assembling an engine timing drive includes applying a predetermined torque to a protuberance of a tensioner that is pivotably mounted to a cylinder block to rotate the tensioner toward a rotatable device such that the tensioner applies a predetermined load to the rotatable device.

公开(公告)号：US10145274B2

公开(公告)日：2018-12-04

申请号：US15474303

申请日：2017-03-30

Applicant: HONDA MOTOR CO., LTD.

Inventor： Dai Kataoka ,  Yoshihiro Takada

IPC: F01L1/34 ,  F01L13/00 ,  F01L1/02 ,  F01L1/053 ,  F02D13/08 ,  F01L1/18 ,  F01L1/047

Abstract: An internal combustion engine is provided with a DOHC-type valve train in a cylinder head. The valve train includes an intake side camshaft with an intake side driven gear, and an exhaust side camshaft with an exhaust side driven gear. The cylinder head supports therein a spindle with an idle gear with an idle chain sprocket fixed thereto. The idle gear is in meshing engagement with both the intake and exhaust side driven gears. Rotary power of a crankshaft is transmitted via a cam chain to the idle gear to rotate both the intake and exhaust side camshafts. These camshafts are supported by bearings of a bearing wall and a camshaft holder. These bearings and camshaft holder are located, for compact arrangement, at a position axially coinciding or overlapping with the idle chain sprocket.

公开(公告)号：US10107159B2

公开(公告)日：2018-10-23

申请号：US15328198

申请日：2015-07-28

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Tetsuya Kurosaka

IPC: F01M9/10 ,  F01L1/053 ,  F02B67/04 ,  F02M59/10 ,  F01L1/02 ,  F02F7/00 ,  F01L1/46 ,  F02F1/24 ,  F01M13/02

Abstract: An internal combustion engine includes a camshaft, a cylinder head, a head cover, a high-pressure pump, and a vacuum pump. The high-pressure pump includes a plunger that abuts against a cam provided on the camshaft. The high-pressure pump is configured to be driven by rotation of the cam such that oil that has lubricated abutting portions of the cam and the plunger collides with an inside wall of the head cover. The vacuum pump is mounted to the cylinder head. The vacuum pump is configured to draw in air from an inlet and discharge an oil mist with air from an outlet. The outlet is arranged such that the oil mist with air from the outlet is discharged into a space where an oil mist formed by a spray of oil that has collided with the inside wall of the head cover stagnates.

公开(公告)号：US10047696B2

公开(公告)日：2018-08-14

申请号：US15273081

申请日：2016-09-22

Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHA

Inventor： Tatsuya Goto

IPC: F02F7/00 ,  F02F11/00 ,  F01L1/02

Abstract: A cover structure for an internal combustion engine includes: a plastic cover member attached to a body of the internal combustion engine so as to cover the power transmission and a metallic holding member configured to hold an oil seal pressurized to the outer circumference of the crank shaft. Also, the holding member is positionable by engaging with the body of the internal combustion engine with respect to an axial direction of the crank shaft and a planar direction perpendicular to the axial direction. The cover member and the holding member are fastened together by a fastening bolt while interposing a gasket positioned to surround the crank shaft.

公开(公告)号：US20180223702A1

公开(公告)日：2018-08-09

申请号：US15746137

申请日：2016-08-11

Applicant: CUMMINS INC.

Inventor： Philipe F. Saad ,  Edward J. Lyford-Pike ,  Milan K. Visaria ,  Agneya Turlabati ,  Anamitra Bjattacharyya ,  Jason R. Griffin ,  Brendan C. Norton

IPC: F01L1/344 ,  F01L1/02 ,  F02B29/04 ,  F02D13/02 ,  F02D19/02

CPC classification number: F01L1/344 ,  F01L1/026 ,  F01L1/146 ,  F01L2001/054 ,  F01L2001/34486 ,  F01L2250/04 ,  F01L2820/041 ,  F02B29/0412 ,  F02D13/02 ,  F02D13/0219 ,  F02D19/02 ,  G06F13/00 ,  Y02T10/146 ,  Y02T10/18 ,  Y02T10/32

Abstract: A spark-ignited gas engine system comprises a combustion chamber defined by a piston, a head with a spark plug mechanism, and a cylinder having an associated intake valve and an associated exhaust valve, into which a mixture of combustible gas and air is entered via an intake manifold of the engine to drive a crankshaft. The system further comprises at least one turbocharger to compress the mixture. The system further comprises at least one camshaft, driven by the crankshaft via a gear assembly connected to the crankshaft, that comprises at least one cam that actuates the intake valve and the exhaust valve, at least one camphaser, coupled to the crankshaft via the gear assembly, and a controller to adjust a cam angle operation of the intake valve and the exhaust valve by adjusting the camphaser to a desired phase position to meet a target rotational phase of the camshaft.

公开(公告)号：US20180163581A1

公开(公告)日：2018-06-14

申请号：US15378564

申请日：2016-12-14

Applicant: GM Global Technology Operations LLC

Inventor： Andrew G. BALDING

IPC: F01L13/00 ,  F01L1/047 ,  F01L1/02 ,  F16H37/02 ,  F16H1/28

CPC classification number: F01L13/0005 ,  F01L1/026 ,  F01L1/047 ,  F01L1/352 ,  F01L13/00 ,  F01L2013/001 ,  F01L2820/032 ,  F16H1/28 ,  F16H35/008 ,  F16H37/02

Abstract: A camshaft drive system for an internal combustion engine, includes a camshaft including a plurality of cam lobes thereon. A planetary gear system including a first component drivingly connected to the camshaft. A motor is drivingly connected to a second component of the planetary gear system and a sprocket is driven by the internal combustion engine and drivingly connected to a third component of the planetary gear system. A controller controls operation of the motor for selectively driving the second component at a same speed as the third component for imparting rotation to the camshaft and for selectively preventing rotation of the second component of the planetary gear system for preventing rotation of the camshaft.

公开(公告)号：US09970331B1

公开(公告)日：2018-05-15

申请号：US15198748

申请日：2016-06-30

Applicant: Brunswick Corporation

Inventor： David J. Belter ,  Gregg D. Langenfeld ,  Mark A. Kollock

IPC: F02B61/04 ,  B63H20/00 ,  F01L1/053 ,  B63H20/24 ,  F01L1/02 ,  F01L9/02 ,  F02B75/22

CPC classification number: F01L1/053 ,  B63B2770/00 ,  B63H20/00 ,  B63H20/24 ,  F01L1/022 ,  F01L1/0532 ,  F01L1/344 ,  F01L2001/0475 ,  F01L2001/0476 ,  F01L2001/0537 ,  F01L2250/04 ,  F01L2250/06 ,  F02B61/045 ,  F02B75/007 ,  F02B75/22 ,  F16H7/00

Abstract: An outboard marine engine comprises a vertically aligned bank of piston-cylinders; an intake camshaft that operates a plurality of intake valves for controlling inflow of air to the bank of piston-cylinders; an exhaust camshaft that operates a plurality of exhaust valves for controlling outflow of exhaust as from the bank of piston-cylinders; and a cam-to-cam connector that connects the intake camshaft to the exhaust camshaft such that rotation of one of the intake and exhaust camshafts causes rotation of the other of the intake and exhaust camshafts. The cam-to-cam connector is located vertically above a lowermost intake valve in the plurality of intake valves, vertically above a lowermost exhaust valve in the plurality of exhaust valves, vertically below an uppermost intake valve in the plurality of intake valves and vertically below an uppermost exhaust valve in the plurality of exhaust valves.

公开(公告)号：US09896977B2

公开(公告)日：2018-02-20

申请号：US15198224

申请日：2016-06-30

Applicant: DENSO CORPORATION

Inventor： Tomonori Suzuki

IPC: F01L1/46 ,  F01L1/344 ,  F01L1/02

CPC classification number: F01L1/3442 ,  F01L1/022 ,  F01L1/46 ,  F01L2001/34483 ,  F01L2103/00

Abstract: A sprocket plate, which is rotated synchronously with a crankshaft, includes a tapered hole portion. A shoe housing, which stops rotation of an inner rotor, includes a press fitting hole portion, which extends straight and into which a positioning member is press fitted. The positioning member includes: a contacting distal end portion that is inserted into the tapered hole portion in an axial direction and contacts an inner peripheral surface of the tapered hole portion at a specific side; a main shaft portion that extends straight in the axial direction and is press fitted into the press fitting hole portion in the axial direction; and a loosely inserting shaft portion that is formed between the contacting distal end portion and the main shaft portion and is loosely inserted into the press fitting hole portion in the axial direction.

公开(公告)号：US20170306808A1

公开(公告)日：2017-10-26

申请号：US15482667

申请日：2017-04-07

Applicant: Ford Global Technologies, LLC

Inventor： Paul Nigel Turner ,  Kevin John Maile ,  Chris Michael Raines

IPC: F01L1/02 ,  F01L1/053 ,  F16H37/06 ,  F01M1/02

Abstract: Methods and systems are provided for a cam drive system of an engine. In one example, a front end of an engine includes an idler gear assembly including an idler gear and idler pulley, the idler gear in meshing engagement with a first end of a crankshaft and the idler pulley coupled to and sharing a rotational axis with the idler gear. The front end of the engine may further include first and second camshaft pulleys positioned vertically above the idler gear assembly and a cam drive belt contacting each of the first and second camshaft pulleys and the idler pulley.

公开(公告)号：US09771839B2

公开(公告)日：2017-09-26

申请号：US15321771

申请日：2015-06-22

Applicant: BorgWarner Inc.

Inventor： Braman C. Wing ,  Daniel Brown

IPC: F01L1/34 ,  F01L1/352 ,  F01L1/02 ,  F01L1/053

CPC classification number: F01L1/352 ,  F01L1/024 ,  F01L1/053 ,  F01L2001/0537

Abstract: A system (44) for controlling camshaft (28) phase in an engine (20) with a crankshaft (26), including: an actuator (42) driving a phaser (38) attached to the camshaft (28). The phaser (38) has a first portion (46) in communication with the crankshaft (26), a second portion (48) attached to the camshaft (28) and in communication with the first portion (46), and a third portion (50) attached to the actuator (42) and in communication with the second portion (48). One portion includes a receiver (52), and another portion includes a lock (54) having: a first position (78) where the portions with the receiver (52) and lock (54) can rotate with respect to each other; and a second position (80) where the portions with the receiver (52) and lock (54) are coupled. The lock (54) moves between positions in response to predetermined torque differential between the actuator (42) and camshaft (28).