Title:
BUSH CUTTER DRIVEN BY INTERNAL COMBUSTION ENGINE
Document Type and Number:
Japanese Patent JP2018009538
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To suppress occurrence of vibration caused by the combustion state of an engine at the time of deceleration.SOLUTION: When deceleration is detected, misfire control is executed (S1). When the engine speed reaches 5,000 rpm or less (S2), switching is made to normal ignition timing control (S4). Since the combustion state becomes unstable during deceleration of an engine, sudden and relatively large vibration occurs. The vibration can be suppressed by executing the misfire control. When restarting the operation of the engine, vibration at the time of restarting the operation does not occur in a region in which the engine speed is 4,500 rpm to 5,500 rpm (62). By restarting the operation when the engine speed is 5,000 rpm, it is possible to suppress the occurrence of vibration at the time of restarting the operation.SELECTED DRAWING: Figure 4
Inventors:
ETO KUNITOSHI
ONODERA SHUJI
ONODERA SHUJI
Application Number:
JP2016139786A
Publication Date:
January 18, 2018
Filing Date:
July 14, 2016
Export Citation:
Assignee:
YAMABIKO CORP
International Classes:
F02P5/15; A01D34/68; A01D34/76; F02B63/00; F02B63/02; F02D45/00
Domestic Patent References:
| JP2010151125A | 2010-07-08 | |||
| JP2014122620A | 2014-07-03 | |||
| JP2011190732A | 2011-09-29 | |||
| JP2013119861A | 2013-06-17 | |||
| JP2005168339A | 2005-06-30 | |||
| JP2009261340A | 2009-11-12 |
Foreign References:
| US6735873B2 | 2004-05-18 | |||
| WO2011048697A1 | 2011-04-28 |
Attorney, Agent or Firm:
Masashi Hirai
Kozu Sako
Kozu Sako
Previous Patent: A scroll compressor and a refrigerating cycle device
Next Patent: Hydraulic pressure supplying device
Next Patent: Hydraulic pressure supplying device