Invention Grant
- Patent Title: Internal combustion engine having a plurality of exhaust ports per cylinder and charge exchange method for such an internal combustion engine
- Patent Title (中): 内燃机具有每个气缸的多个排气口和用于这种内燃机的电荷交换方法
-
Application No.: US13651178Application Date: 2012-10-12
-
Publication No.: US08875675B2Publication Date: 2014-11-04
- Inventor: Helmut Hans Ruhland , Jens Dunstheimer , Albert Breuer , Shuya Shark Yamada
- Applicant: Ford Global Technologies, LLC
- Applicant Address: US MI Dearborn
- Assignee: Ford Global Technologies, LLC
- Current Assignee: Ford Global Technologies, LLC
- Current Assignee Address: US MI Dearborn
- Agency: Alleman Hall McCoy Russell & Tuttle LLP
- Agent Julie Voutyras
- Priority: DE102011084834 20111020
- Main IPC: F01L1/34
- IPC: F01L1/34 ; F02D13/02 ; F02D13/00

Abstract:
A method for controlling valve actuation in an engine is provided. The method includes initiating combustion operation in a first cylinder, opening, via a first cam, a first exhaust valve coupled to the first cylinder for a first opening duration. The method further includes opening, via a second cam, a second exhaust valve coupled to the first cylinder for a second opening duration not equivalent to the first opening duration.
Public/Granted literature
Information query