公开(公告)号：US10247122B1

公开(公告)日：2019-04-02

申请号：US15866711

申请日：2018-01-10

Applicant: Caterpillar Inc.

Inventor： Dana R Coldren ,  Ryan Thomas Sunley ,  Jianhua Zhang ,  Lifeng Wang

IPC: F02M59/36 ,  F02D41/02 ,  F02D41/38 ,  F02D41/40 ,  F02D13/02 ,  F02D9/04 ,  F02B39/10

Abstract: An engine control system is structured for operating a turbocharged engine system and includes an electronic control unit. The electronic control unit is structured to switch the engine system from operation in a parasitically loaded mode where fuel pressurized by a fuel pump is dumped to a low pressure space, to operation in a second mode, where an engine load increase is detected. Turbocharger lag in the engine system is limited during increasing the engine load by way of exhaust energy produced in response to the parasitic loading. Related methodology is disclosed.

公开(公告)号：US20160333842A1

公开(公告)日：2016-11-17

申请号：US14711696

申请日：2015-05-13

Applicant: Caterpillar Inc.

Inventor： Ryan Thomas Sunley ,  William Wai Lam Fung ,  Lee David Kress ,  Edward Thayer King ,  Joseph Paul Fuller ,  Joshua Annin ,  Jeffrey Richard Nudd

IPC: F02N19/00 ,  F02B63/04

CPC classification number: F02B43/00 ,  F02B43/12 ,  F02D19/02 ,  F02D41/0027 ,  F02D41/062 ,  Y02T10/32

Abstract: A priming system for an engine system having a throttle valve configured to regulate a flow of air and fuel into an intake manifold of an engine is disclosed. The priming system may include a first sensor configured to generate a signal indicative of an engine speed, an auxiliary fuel line configured to direct fuel from a fuel source to a location between an outlet of the throttle valve and the intake manifold, an auxiliary fuel valve disposed in the auxiliary fuel line, and a controller in communication with the first sensor and the auxiliary fuel valve. The controller may be configured determine the engine speed based on the first signal and close the auxiliary fuel valve when the engine speed is greater than or equal to a threshold engine speed. The threshold engine speed may be less than an idle speed of the engine.

Abstract translation: 公开了一种用于发动机系统的起动系统，其具有构造成调节空气和燃料流入发动机的进气歧管的节流阀。 起动系统可以包括构造成产生指示发动机转速的信号的第一传感器，配置成将燃料从燃料源引导到节流阀和进气歧管出口之间的位置的辅助燃料管路;辅助燃料阀 设置在辅助燃料管路中，以及与第一传感器和辅助燃料阀连通的控制器。 控制器可以被配置为基于第一信号确定发动机速度，并且当发动机速度大于或等于阈值发动机转速时关闭辅助燃料阀。 阈值发动机转速可能小于发动机的怠速。