Invention Grant
US08047175B2 In-line four cylinder engine for vehicle and vehicle provided with the engine
有权
配有发动机的汽车和车辆的直列四缸发动机
- Patent Title: In-line four cylinder engine for vehicle and vehicle provided with the engine
- Patent Title (中): 配有发动机的汽车和车辆的直列四缸发动机
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Application No.: US10585806Application Date: 2005-01-12
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Publication No.: US08047175B2Publication Date: 2011-11-01
- Inventor: Kengo Nishi , Masao Furusawa
- Applicant: Kengo Nishi , Masao Furusawa
- Applicant Address: JP Iwata-Shi
- Assignee: Yamaha Hatsudoki Kabushiki Kaisha
- Current Assignee: Yamaha Hatsudoki Kabushiki Kaisha
- Current Assignee Address: JP Iwata-Shi
- Agency: Rabin & Berdo, PC
- Priority: JP2004-006431 20040114
- International Application: PCT/JP2005/000215 WO 20050112
- International Announcement: WO2005/068872 WO 20050728
- Main IPC: F02B75/06
- IPC: F02B75/06
Abstract:
A two-plane type crankshaft is provided. The weight of crank webs for the respective cylinders is divided between left and right half webs and balance ratios kL and kR of the half webs for the respective cylinders are set so as to be (kL−0.25)·(0.25−kR)≅DR/DL to form a track of a vector of a primary inertial couple into a substantial circle. A primary balancer offsets the primary inertia couple.
Public/Granted literature
- US20080257296A1 In-Line Four Cylinder Engine for Vehicle and Vehicle Provided With the Engine Public/Granted day:2008-10-23
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