公开(公告)号：US10602571B2

公开(公告)日：2020-03-24

申请号：US15461653

申请日：2017-03-17

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Hiroki Tateishi

IPC: H05B6/10 ,  F01L1/04 ,  F01L1/047

Abstract: Provided is a heat treatment method for a cam piece, and the cam piece has an insertion hole into which a cam shaft is inserted, a base portion configuring a base circle of a cam, and a nose portion configuring a cam ridge. The heat treatment method for the cam piece includes: a first step of using a jig formed into a shape having a cavity, the jig being inserted into the insertion hole such that the cavity is located between an inner circumferential surface of the nose portion of the cam piece and a central axis of the jig; and a second step of heating the cam piece from an outer circumferential surface side by high-frequency induction heating in a state in which the jig is inserted in the insertion hole of the cam piece.

公开(公告)号：US10443454B2

公开(公告)日：2019-10-15

申请号：US15539053

申请日：2015-12-02

Applicant: Daimler AG

Inventor： Juergen Bauer ,  Matthias Lahr ,  Marc Oliver Wagner ,  Benjamin Zeller

IPC: F01L1/04 ,  F01L13/06 ,  F01L1/047 ,  F01L13/00

Abstract: A valve drive device for an internal combustion engine is disclosed. The valve drive device has an axially displaceable cam element and an adjusting device with a first engagement element which displaces the cam element axially into a first switching position and a second engagement element which displaces the cam element axially into a second switching position. The adjusting device has a first slotted guide track in which the first engagement element is guided in the first switching position and a second slotted guide track in which the second engagement element is guided in the second switching position. The first engagement element is positively coupled to the second engagement element. The adjusting device includes a triggering device which holds the first engagement element fixedly in the second switching position counter to a restoring force. A method for axial displacement of a rotating cam element is also disclosed.

公开(公告)号：US10422256B2

公开(公告)日：2019-09-24

申请号：US15830855

申请日：2017-12-04

Applicant: Hyundai Motor Company ,  Kia Motors Corporation

Inventor： Won Seok Lee

IPC: F01L13/06 ,  F01L1/18 ,  F01L1/24 ,  F01L13/00 ,  F01L1/04

Abstract: An engine brake device is provided for attenuating compression. The device is able to brake engine by attenuating a pressure increase in a cylinder by temporarily opening an exhaust valve at the end of a compression stroke of the engine, using an eccentric assembly eccentrically coupled to a pivot center of an exhaust rocker arm and an actuator for pushing up the eccentric assembly.

公开(公告)号：US10358949B2

公开(公告)日：2019-07-23

申请号：US15310711

申请日：2015-04-14

Applicant: ThyssenKrupp Presta TecCenter AG

Inventor： Michael Kunz ,  Martin Lehmann

IPC: F01L1/04 ,  F01L1/047 ,  F01L13/00 ,  F16H53/04

Abstract: A camshaft may have a bearing shaft configured as a hollow shaft in which an inner shaft is disposed concentrically relative to the bearing shaft. The inner shaft may be twistable relative to the bearing shaft. A first cam segment having a first recess for receiving the bearing shaft may be disposed on the bearing shaft, may be rotatable relative to the bearing shaft, and may be connected in a rotationally fixed and axially fixed manner to the inner shaft. A second cam segment having a second recess for receiving the bearing shaft may be disposed on the bearing shaft. The second cam segment may have at least two cam contours and may be fastened on the bearing shaft so that the second cam segment is rotationally fixed to the bearing shaft and arranged in an axially displaceable manner on the bearing shaft.

公开(公告)号：US10196943B2

公开(公告)日：2019-02-05

申请号：US15265878

申请日：2016-09-15

Applicant: EATON INTELLIGENT POWER LIMITED

Inventor： Majo Cecur

IPC: F01L1/18 ,  F01L13/00 ,  F01L1/04 ,  F01L1/34 ,  F02M26/01 ,  F01L1/047 ,  F02D13/02 ,  F01L1/46

Abstract: A valve train assembly includes a rocker arm, comprising: a first roller, configured to engage a first rotatable cam surface; and a further roller, configured to engage a further rotatable cam surface, wherein at least part of the rocker arm can be pivoted by at least the first rotatable cam surface to move a valve to cause a first valve event, and wherein at least part of the rocker arm can be pivoted by the further rotatable cam surface to move the valve to cause a second valve event.

公开(公告)号：US10107145B2

公开(公告)日：2018-10-23

申请号：US15030417

申请日：2015-01-22

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Toshiyuki Yano ,  Yoshiaki Miyazato ,  Hidetoshi Hirose ,  Yoshikazu Hara

IPC: F01L1/34 ,  F01L1/08 ,  F01L1/04 ,  F01L1/26 ,  F01L13/00 ,  F01L1/047

Abstract: An adjustable valve device includes: a first cam portion penetrated by a camshaft, rotating with the camshaft, and including an elongated hole formed therein; a U or L shaped second cam portion supported by the first cam portion so as to swing to move between a first state and a second state; a stopper pin fixed to the second cam portion and penetrating through the elongated hole; a biasing member biasing the stopper pin so that the second cam portion becomes in the first state; a lock mechanism locking the second cam portion only when the second cam portion is in the first state; and a cam follower exerting a reactive force so that the second cam portion becomes in the second state in a state where a lock of the second cam portion is released, wherein the reactive force is greater than a biasing force of the biasing member.

公开(公告)号：US10001036B2

公开(公告)日：2018-06-19

申请号：US14899684

申请日：2014-06-05

Applicant: BorgWarner Inc.

Inventor： Franklin R. Smith ,  Daniel Brown

IPC: F01L1/34 ,  F01L1/344 ,  F01L1/04 ,  F01L1/047

CPC classification number: F01L1/34 ,  F01L1/044 ,  F01L1/047 ,  F01L1/3442 ,  F01L2001/34423 ,  F01L2001/34446 ,  F01L2001/34459 ,  F01L2001/34463 ,  F01L2001/34466

Abstract: A hydraulically operated camshaft phasing mechanism has two lock pins. One of the lock pins engages at an intermediate position and an end lock pin engages near one of the stops at the end of the phaser range of authority. At least one of the locking pins, preferably the end lock pin, when the vane is at an end stop position, is engaged by oil pressure and spring loaded to release when the oil pressure side of the end lock pin is vented.

公开(公告)号：US20180003106A1

公开(公告)日：2018-01-04

申请号：US15702365

申请日：2017-09-12

Applicant: Innowatt GmbH

Inventor： Herbert Huettlin

IPC: F02B53/06 ,  F01L1/04 ,  F01L1/344 ,  F02B53/14

CPC classification number: F02B53/06 ,  F01C9/002 ,  F01C21/002 ,  F01C21/18 ,  F01L1/02 ,  F01L1/026 ,  F01L1/04 ,  F01L1/12 ,  F01L1/344 ,  F01L3/00 ,  F01L3/20 ,  F02B53/14

Abstract: A pivoting piston machine includes a housing, a first piston and a second piston arranged in the housing, the first and second pistons being pivotable away from one another and toward one another about a pivot axis. The machine has a working chamber arranged between first and second piston. The working chamber increases and decreases in size in alternating fashion during pivoting of the first piston and of the second piston. The machine also has a inlet mouth for admission and discharge of the working medium. A closing element for closing and opening the inlet or the outlet has a valve disk interacting with a valve seat. Either the inlet mouth or the outlet mouth is arranged within the working chamber between the first end surface and the second end surface, and the valve seat and the valve disk are arranged at either the inlet mouth or the outlet mouth.

公开(公告)号：US09835059B2

公开(公告)日：2017-12-05

申请号：US14932442

申请日：2015-11-04

Applicant: Dr. Ing. h.c. F. Porsche Aktiengesellschaft

Inventor： Artur Schützle

IPC: F01L1/04 ,  F01L13/00

CPC classification number: F01L13/0036 ,  F01L1/047 ,  F01L2001/0473 ,  F01L2013/0052

Abstract: A camshaft for an internal combustion engine, with a drivable basic shaft and a cam piece which is mounted in the basic shaft, wherein the basic shaft passes through a passage in the cam piece, and the cam piece is mounted in the basic shaft in a rotationally fixed and axially displaceable manner. In the case of such a camshaft, it is provided that the basic shaft has a polygonal profile, and the passage in the cam piece has a complementary polygonal profile for receiving the basic shaft. The camshaft is preferably used in a motorcycle which has an internal combustion engine with two cylinders.

公开(公告)号：US20170167324A1

公开(公告)日：2017-06-15

申请号：US15325799

申请日：2015-04-29

Applicant: Schaeffler Technologies AG & Co. KG

Inventor： Matthias Ammann ,  Jan Pfannenmuller

IPC: F01L13/00 ,  F01L1/04 ,  F01L1/047

CPC classification number: F01L13/0036 ,  F01L1/042 ,  F01L1/047 ,  F01L2013/0052 ,  F01L2820/031

Abstract: A sliding cam system is provided including: at least one sliding cam arranged in a fixed, but axially slideable manner on at least one axially fixed base shaft for forming a cam shaft of a reciprocating internal combustion engine; at least one actuator device for adjusting the sliding cam into different axial positions using at least one actuator pin that can engage in at least one sliding groove on a circumference of the sliding cam, wherein the actuator device has a housing attached to the engine and the sliding grooves are arranged in a groove section of the sliding cam; and a bracket encompassing the groove section using side shoulders, directed parallel to a longitudinal axis of the base shaft and provided with an opening in a region of the actuator pins, wherein the sliding cam has at least two sliding grooves having at least partially different depths, wherein the bracket is directed in the actuator device and wherein a positive-fit depth stop device is provided between the bracket and the actuator pin(s).