公开(公告)号：US10273945B2

公开(公告)日：2019-04-30

申请号：US14448176

申请日：2014-07-31

Applicant: CUMMINS INC.

Inventor： Adam C. Cecil

IPC: F04B1/04 ,  F04B9/04 ,  F04B27/04 ,  F01L13/00 ,  F01B31/24 ,  F02M59/10 ,  F02M59/02 ,  F02M39/02 ,  F02M43/02 ,  F01L1/14 ,  F02M43/00 ,  F02M59/38 ,  F02D19/06 ,  F01L1/08

Abstract: A mechanical fuel pump is disclosed for delivering fuel to an engine of a vehicle, the mechanical fuel pump having an activated configuration and a deactivated configuration. A dual fuel system and method are also disclosed for use with the mechanical fuel pump.

公开(公告)号：US10132203B2

公开(公告)日：2018-11-20

申请号：US15440248

申请日：2017-02-23

Applicant: HONDA MOTOR CO., LTD.

Inventor： Nozomi Okada

IPC: F01L1/18 ,  F01L1/08 ,  F01L1/047 ,  F01L1/26 ,  F01L1/053 ,  F01L3/00

Abstract: An internal combustion engine optimizing small-size arrangement of the valve drive mechanism, considering that the exhaust valve diameter is smaller than the intake valve diameter.Intake and exhaust valves are in a radial arrangement, intake and exhaust cam surfaces are inclined relative to intake and exhaust cam axes, intake and exhaust rocker arm support members are inclined correspondingly in the same way and disposed between an intake camshaft and an exhaust camshaft. Pivotal support base portions of intake rocker arms and pivotal support base portions of exhaust rocker arms are disposed such that the distances thereof from a joining surface joining a cylinder head and a cylinder body are different.

公开(公告)号：US20180283241A1

公开(公告)日：2018-10-04

申请号：US16002416

申请日：2018-06-07

Applicant: Cummins Inc.

Inventor： Adam C. Cecil

IPC: F01L13/06 ,  F01L1/08 ,  F01L1/14 ,  F02D13/04 ,  F01L1/255

Abstract: An engine compression braking system includes a brake tappet linking an exhaust cam to at least one exhaust valve of an engine cylinder. The brake tappet is connected with a working fluid that selectively activates and deactivates a compression braking mode of operation by selectively engaging and releasing a lash assembly of the brake tappet relative to a housing of the brake tappet.

公开(公告)号：US20180274393A1

公开(公告)日：2018-09-27

申请号：US15877437

申请日：2018-01-23

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Takayoshi KAWAI ,  Noriyasu ADACHI ,  Shigehiro SUGIHIRA ,  Keisuke SASAKI ,  Kaoru OTSUKA ,  Shinji SADAKANE ,  Hiroyuki SUGIHARA

IPC: F01L1/047 ,  F01L1/08 ,  F01L13/00 ,  F16H53/02

CPC classification number: F01L1/047 ,  F01L1/08 ,  F01L13/0015 ,  F01L13/0036 ,  F01L2013/0052 ,  F01L2800/01 ,  F01L2820/04 ,  F01L2820/041 ,  F01L2820/042 ,  F02D41/00 ,  F02D41/0002 ,  F02D41/062 ,  F02D2041/001 ,  F02D2041/0092 ,  F16H53/025

Abstract: At crank angle CA10 at which the switch request of the drive cam was issued, the ejection operations of the pins at all the solenoid actuators started simultaneously. The ejected pins are seated on the cam carriers at erank angle CA12. The pin seated on the cam carrier moves along the grooves in accordance with the rotation of the cam carrier. The earliest finish timing of the switch operation of the drive cam is at crank angle CA13 (#4 cylinder). At the crank angle CA13, drive of the fuel injector and the ignition device in each cylinder is permitted.

公开(公告)号：US10047645B2

公开(公告)日：2018-08-14

申请号：US15312872

申请日：2015-05-27

Applicant: MAZDA MOTOR CORPORATION

Inventor： Akitomo Takagi ,  Toshimasa Kotani

IPC: F01L13/00 ,  F01L1/047 ,  F01L1/08 ,  F01L1/46

Abstract: A valve train device for an engine includes: a shaft portion; a cam element portion which is mounted on the shaft portion; and an operation member. The cam element portion includes a first end surface cam and a second end surface cam. Each of the first end surface cam and the second end surface cam includes a lift portion. The operation member includes a first operation member and a second operation member. The first operation member causes the cam element portion to move in a first direction, and the second operation member causes the cam element portion to move in a second direction. The first end surface cam includes a first slope portion, and guides the first operation member radially outwardly; and a displacement allowing portion which is formed adjacent to the first slope portion, and allows relative displacement between the first operation member, and the cam element portion.

公开(公告)号：US20180149046A1

公开(公告)日：2018-05-31

申请号：US15578334

申请日：2016-05-13

Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.

Inventor： Atsushi WATANABE

IPC: F01L1/356 ,  F01L1/344 ,  F01L1/053 ,  F01L1/08

CPC classification number: F01L1/356 ,  F01L1/0532 ,  F01L1/08 ,  F01L1/3442 ,  F01L2001/34426 ,  F01L2001/34453 ,  F01L2001/34456 ,  F01L2103/02

Abstract: Provided is a novel valve timing control apparatus capable of reducing an axial length and of reducing a thickness of a housing. A valve timing control apparatus for an internal combustion engine includes a timing pulley to which a rotational force is transmitted from a crankshaft via a timing belt, a housing configured to be rotated by the timing pulley and including a plurality of shoes provided on an inner peripheral surface thereof, and a vane rotor relatively rotatably contained inside the housing and configured to be rotated in synchronization with a camshaft. The vane rotor includes a vane forming a retard angle oil chamber and an advance angle oil chamber inside the housing in cooperation with the plurality of shoes. A predetermined interval is provided between an outer peripheral portion of the housing and an inner peripheral portion of the timing pulley. An outer peripheral portion of a housing main body of the housing and the inner peripheral portion of the timing pulley are coupled with each other via a plurality of coupling beam portions with intervals in a circumferential direction. The housing main body, the timing pulley, and the plurality of coupling beam portions are integrally formed.

公开(公告)号：US09957848B2

公开(公告)日：2018-05-01

申请号：US15114371

申请日：2015-03-26

Applicant: Daniel Guy Pomerleau

Inventor： Daniel Guy Pomerleau

IPC: F01M11/02 ,  F01L1/16 ,  F16H53/06 ,  F01L1/08 ,  F01L1/14 ,  F01L1/053 ,  F01L1/344 ,  F01L3/22 ,  F01L3/00 ,  F01L1/18 ,  F01L13/00 ,  F01L1/047

CPC classification number: F01L1/16 ,  F01L1/0532 ,  F01L1/08 ,  F01L1/14 ,  F01L1/146 ,  F01L1/18 ,  F01L1/181 ,  F01L1/34416 ,  F01L3/22 ,  F01L13/0042 ,  F01L13/0047 ,  F01L2001/0476 ,  F01L2003/11 ,  F01L2013/0078 ,  F01L2105/00 ,  F01L2810/02 ,  F01L2820/01 ,  F16H53/06

Abstract: A cam follower for operable attachment to a valve lifter assembly for use with a variable cam lobe camshaft in a variable valve timing system includes a housing with a central cavity and a mushroom head with a stem pivotably connected to the housing in the central cavity, the mushroom head having a radiused surface for contacting a cam lobe surface. The cam follower is used in combination with a variable cam surface of an axially displaceable camshaft to obtain improvements in idling speed and volumetric efficiency.

公开(公告)号：US09732682B2

公开(公告)日：2017-08-15

申请号：US13934140

申请日：2013-07-02

Applicant: Ford Global Technologies, LLC

Inventor： Torsten Tietze ,  Christian Winge Vigild ,  Andreas Kuske ,  Wilbert Hemink

IPC: F02B69/06 ,  F02D41/00 ,  F02D41/30 ,  F01L1/38 ,  F01L1/08 ,  F01L1/18 ,  F01L13/00 ,  F02M26/06 ,  F01L1/14 ,  F01L1/053

CPC classification number: F02D41/0002 ,  F01L1/08 ,  F01L1/146 ,  F01L1/181 ,  F01L1/38 ,  F01L13/0036 ,  F01L2001/0537 ,  F02D41/3058 ,  F02D2041/001 ,  F02M26/06 ,  Y02T10/42

Abstract: Systems and methods are provided for operating an internal combustion engine in a two-stroke mode or a four-stroke mode to achieve greater fuel efficiency and minimize emissions. The system comprises a mode-adaptable valve; a valve rocker arm to actuate opening and closing of the mode adaptable valve; a cam follower of a first cam for carrying out a two-stroke mode; a cam follower of a second cam for carrying out a four-stroke mode; and a pin to mechanically couple the valve rocker arm to the cam follower of the first cam or the cam follower of the second cam. Coupling the valve rocker arm to the cam follower of the first cam enables a two-stroke mode and coupling the valve rocker arm to the cam follower of the second cam enables a four-stroke mode.

公开(公告)号：US09732643B2

公开(公告)日：2017-08-15

申请号：US15161220

申请日：2016-05-21

Applicant: Zhou Yang

Inventor： Zhou Yang

IPC: F02D9/06 ,  F01L13/06 ,  F01L1/08 ,  F01L1/20 ,  F02D13/02 ,  F02D13/04 ,  F01L1/18 ,  F01L13/00 ,  F01L1/26

CPC classification number: F01L13/065 ,  F01L1/08 ,  F01L1/18 ,  F01L1/181 ,  F01L1/185 ,  F01L1/20 ,  F01L1/267 ,  F01L13/0021 ,  F01L13/0026 ,  F01L13/06 ,  F01L2105/00 ,  F01L2800/10 ,  F02D9/06 ,  F02D13/0276 ,  F02D13/04

Abstract: An engine valve actuation mechanism for producing a variable engine valve event includes a cam, a rocker arm, a rocker arm shaft, an eccentric rocker arm bushing, and a bushing actuation device. The eccentric rocker arm bushing is disposed in an axial hole in the rocker arm, the rocker arm shaft being disposed in the eccentric rocker arm bushing with the rocker arm shaft and the eccentric rocker arm bushing having offset axial centerlines. One end of the rocker arm and the cam is connected to form a kinematic pair and the other end of the rocker arm is located above the engine valve with a gap between the cam and the engine valve. The bushing actuation device is placed in the rocker arm and drives the eccentric rocker arm bushing to rotate, and the rotation of the eccentric rocker arm bushing changes the gap to generate the variable engine valve event.

公开(公告)号：US20170122142A1

公开(公告)日：2017-05-04

申请号：US15318950

申请日：2015-06-17

Applicant: ThyssenKrupp Presta TecCenter AG

Inventor： Uwe Dietel ,  Bernd Mann ,  Michael Kunz ,  Martin Lehmann

IPC: F01L1/344 ,  F01L1/08 ,  F01L1/047

CPC classification number: F01L1/34413 ,  F01L1/047 ,  F01L1/053 ,  F01L1/08 ,  F01L13/0057 ,  F01L2001/0473 ,  F01L2001/0476

Abstract: A camshaft for a valve drive of an internal combustion engine having a variable valve opening time may include an outer shaft and an inner shaft that extends through the outer shaft, with the inner shaft being held rotatably with respect to the outer shaft. The camshaft may further include a cam having a multiple-piece configuration, comprising a first part cam and a second part cam. Either the first part cam or the second part cam may be connected fixedly to the outer shaft so as to rotate with it, and the other part cam may be connected fixedly to the inner shaft so as to rotate with it. The camshaft may also include a bearing inner ring of a shaft bearing that is held on the outer shaft, with one of two second part cams comprising an axial attachment that forms at least one part of the bearing inner ring.