公开(公告)号：US20170122148A1

公开(公告)日：2017-05-04

申请号：US14927778

申请日：2015-10-30

Applicant: General Electric Company

Inventor： Rajesh Katta ,  Jeffrey Jacob Bizub ,  Pritam Prakash Desai ,  Benjamin Earl Ross ,  Ryan Michael Rudnitzki

IPC: F01L13/00

CPC classification number: F01L13/0031 ,  F01L1/181 ,  F01L1/267 ,  F01L9/025 ,  F01L9/026 ,  F01L2013/0089 ,  F01L2013/103 ,  F01L2013/105 ,  F01L2013/106 ,  F01L2013/11 ,  F01L2013/111 ,  F01L2105/00 ,  F01L2201/00 ,  Y02T10/142

Abstract: Embodiments of the disclosure provide variable valve timing (VVT) mechanisms. A VVT mechanism according to the disclosure can include: a lever having a first end, a second end, and a fulcrum positioned therebetween; a length-adjustable push rod coupled to the first end of the lever and including an actuator therein; a rod valve coupled to the second end of the lever, the rod valve being configured to open and close an intake valve of an engine system based on a movement of the lever; and an engine control unit (ECU) operatively connected to the actuator of the length-adjustable push rod, wherein the ECU adjusts a length of the length-adjustable push rod based on an operating condition of the engine system. In addition or alternatively, the ECU can control an amount of cushioning fluid for the valves to affect the rate at which the intake valve opens or closes.

公开(公告)号：US20150211512A1

公开(公告)日：2015-07-30

申请号：US14166991

申请日：2014-01-29

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Herman Lucas Norbert Wiegman ,  Paul Robert Gemin ,  Benjamin Earl Ross ,  Stephen Duane Sanborn ,  Robert Earl McDowell

IPC: F04B49/20 ,  F04B23/06

CPC classification number: F04B49/20 ,  F04B23/06

Abstract: A converterless motor-driven pump system includes an off-grid prime mover. The prime mover includes a rotational driveshaft that operates in response to a throttle or fuel input controller to control a rotation speed of the prime mover driveshaft. Operation of the throttle or fuel input controller is based on desired output characteristics of a pumping load. One or more electric power generators are driven by the off-grid prime mover to generate AC or DC power on an electrical bus shared by a plurality of variable speed electric motors. A plurality of pumps is connected to a common manifold shared by the plurality of pumps. The plurality of pumps is driven by the plurality of variable speed electric motors to generate a desired wellhead pressure or pumping load flow rate via the shared common manifold.

Abstract translation: 无转矩电动泵系统包括离网原动机。 原动机包括旋转驱动轴，其响应于节气门或燃料输入控制器操作以控制原动机驱动轴的转速。 节气门或燃料输入控制器的操作基于泵送负载的期望的输出特性。 一个或多个发电机由离网原动机驱动，以在由多个变速电动机共享的电气总线上产生AC或DC电力。 多个泵连接到由多个泵共用的公共歧管。 多个泵由多个变速电动机驱动，以经由共用公共歧管产生期望的井口压力或泵送负载流量。