公开(公告)号：US20160222841A1

公开(公告)日：2016-08-04

申请号：US14991603

申请日：2016-01-08

Applicant: JACOBS VEHICLE SYSTEM, INC.

Inventor： Joesph M. Vorih ,  Jeffrey Mossberg ,  Richard Vanderpoel ,  Steven Ernest ,  Guy Paterson ,  John A. Schwoerer ,  Edward T. Leitkowski ,  Andrew Brzoska ,  Gheorghe Cosma

IPC: F01L13/00 ,  F01L9/02

CPC classification number: F01L13/0015 ,  F01L1/053 ,  F01L1/08 ,  F01L1/185 ,  F01L1/2411 ,  F01L1/267 ,  F01L9/02 ,  F01L9/025 ,  F01L13/0005 ,  F01L13/06 ,  F01L13/085 ,  F01L2001/34446 ,  F01L2105/00 ,  F01L2800/01 ,  F01L2820/01 ,  F02D13/0234 ,  F02D41/0002 ,  F02D41/26 ,  F02D2041/001

Abstract: A lost motion engine valve actuation system and method of actuating an engine valve are disclosed. The system may comprise a valve train element, a pivoting lever, a control piston, and a hydraulic circuit. The pivoting lever may include a first end for contacting the control piston, a second end for transmitting motion to a valve stem and a means for contacting a valve train element. The amount of lost motion provided by the system may be selected by varying the position of the control piston relative to the pivoting lever. Variation of the control piston position may be carried out by placing the control piston in hydraulic communication with a control trigger valve and one or more accumulators. Actuation of the trigger valve releases hydraulic fluid allowing for adjustment of the control piston position. Means for limiting valve seating velocity, filling the hydraulic circuit upon engine start up, and mechanically locking the control piston/lever for a fixed level of valve actuation are also disclosed.

Abstract translation: 公开了一种失速发动机气门致动系统和致动发动机气门的方法。 该系统可以包括气门机构元件，枢转杆，控制活塞和液压回路。 枢转杆可以包括用于接触控制活塞的第一端，用于将运动传递到阀杆的第二端和用于接触气门机构元件的装置。 可以通过改变控制活塞相对于枢转杆的位置来选择由系统提供的空动量。 可以通过将控制活塞与控制触发阀和一个或多个蓄能器液压连接来实现控制活塞位置的变化。 触发阀的启动释放液压流体，允许调节控制活塞位置。 还公开了用于限制阀座速度，在发动机起动时填充液压回路以及将控制活塞/杆机械地锁定在固定水平的阀致动的装置。

公开(公告)号：US20170089232A1

公开(公告)日：2017-03-30

申请号：US15280063

申请日：2016-09-29

Applicant: Jacobs Vehicle System, Inc.

Inventor： Dong YANG ,  Peter JO ,  Justin D. BALTRUCKI

IPC: F01L13/08 ,  F01L1/08 ,  F01L13/06 ,  F01L1/24

CPC classification number: F01L13/085 ,  F01L1/08 ,  F01L1/24 ,  F01L13/06 ,  F01L13/065 ,  F01L2800/10 ,  F01L2800/19

Abstract: A system for actuating engine valve comprises a main valve actuation motion source configured to supply main valve actuation motions to the at least one engine valve via a main motion load path, and an auxiliary valve actuation motion source separate from the main valve actuation motion source and configured to supply complementary auxiliary valve actuation motions to the at least one engine valve via an auxiliary motion load path. A lost motion component is configured, in one state, to maintain lash between the auxiliary valve actuation motion source and the auxiliary motion load path or within the auxiliary motion load path and, in another state, to take up this lash. The auxiliary valve actuation motion source is further configured to supply at least one lash-prevention valve actuation motion that substantially matches at least one of the main valve actuation motions.

公开(公告)号：US20170081986A1

公开(公告)日：2017-03-23

申请号：US15272986

申请日：2016-09-22

Applicant: Jacobs Vehicle System, Inc. ,  BorgWarner Inc.

Inventor： Mark M. WIGSTEN ,  Thomas P. HOWELL

IPC: F01L1/24 ,  F15B15/26 ,  F15B1/04

CPC classification number: F01L9/023 ,  F01L1/08 ,  F01L1/24 ,  F01L1/26 ,  F01L9/02 ,  F01L9/025 ,  F01L13/06 ,  F01L2001/2444 ,  F01L2001/34446 ,  F02D13/04

Abstract: In an engine comprising a cylinder having first and second engine valves of a same function type, a system for actuating the first and second engine valves comprises a first and second master pistons that receive first and second valve actuation motions from respective ones of a first and second valve actuation motion source, a first slave piston operatively connected to the first engine valve and configured to hydraulically receive the first valve actuation motions from at least the first master piston and a second slave piston operatively connected to the second engine valve and configured to hydraulically receive the second valve actuation motions from the second master piston. The system further comprises an accumulator and a mode selector valve in hydraulic communication with the first master piston, the first slave piston and the accumulator. The mode selector valve may selectively hydraulically connect the first master piston to the accumulator.

公开(公告)号：US20170058787A1

公开(公告)日：2017-03-02

申请号：US15253708

申请日：2016-08-31

Applicant: Jacobs Vehicle System, Inc.

Inventor： Matei ALEXANDRU

IPC: F02D9/06 ,  F02D41/22

CPC classification number: F02D9/06 ,  F01L13/065 ,  F01L2800/00 ,  F02D13/04 ,  F02D41/221 ,  Y02T10/40

Abstract: A controller of an internal combustion engine receives a request for engine braking and, in response thereto, activates an exhaust braking subsystem. Additionally, after passage of a period of time, the controller further activates a compression release braking subsystem. The period of time is preferably selected to permit development of increased back pressure in an exhaust system of the internal combustion engine prior to activation of the compression release braking subsystem. Additionally, following activation of the exhaust braking subsystem, the controller may whether the exhaust braking subsystem has failed and, if so, cause the compression release braking subsystem to operate in a reduced braking power mode, for example at less than full braking power potentially down to and including no braking power.

Abstract translation: 内燃机的控制器接收发动机制动的请求，响应于此，启动排气制动子系统。 此外，经过一段时间后，控制器进一步激活压缩释放制动子系统。 该时间段优选地被选择为允许在启动压缩释放制动子系统之前在内燃机的排气系统中开发增加的背压。 此外，在激活排气制动子系统之后，控制器可以判断排气制动子系统是否发生故障，如果是这样，使压缩释放制动子系统以降低的制动功率模式运行，例如低于完全制动功率可能会下降 包括无制动力。