Title:
ENGINE WORK MACHINE
Document Type and Number:
Japanese Patent JP2015124772
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To improve engine output in a case of using an air pressure governor with a simple configuration.SOLUTION: A current is carried across a throttle operation auxiliary coil 96 in a predetermined range of the number of revolutions (speed of revolution) of an engine 40. Owing to this, an air pressure governor 90 does not substantially function in this range of the predetermined number of revolutions although the air pressure governor 90 is used in the engine 40. As a result, the air pressure governor 90 functions substantially at the number of revolutions exceeding this range of the number of revolutions. While it is possible to accurately control output suppression at the number of revolutions of the engine 40 exceeding 7000 rpm using the air pressure governor 90, it is possible to improve the engine output at 5500 to 7000 rpm for use in a drive state.
Inventors:
IKEDA TOMOYA
ISHIDA SHIGETOSHI
ISHIDA SHIGETOSHI
Application Number:
JP2013272356A
Publication Date:
July 06, 2015
Filing Date:
December 27, 2013
Export Citation:
Assignee:
HITACHI KOKI KK
International Classes:
F02D9/02; A01D34/68; F02D31/00
Attorney, Agent or Firm:
Shiroyuki Hori
Yukihiko Maejima
Yukihiko Maejima