Title:
小型船舶用推進機
Document Type and Number:
Japanese Patent JP4462682
Kind Code:
B2
Abstract:
An outboard motor powers a watercraft and comprises an engine mounted within an engine compartment. The engine comprises an induction system having an induction passage extending between an air intake box to a combustion chamber. A throttle valve is positioned along the passage. A bypass passage communicates with the passage at a location between the throttle valve and the combustion chamber. An adjustable valve controls flow through the bypass passage. The adjustable valve can be closed at a first rate if a the watercraft is traveling at a speed greater than a preset value and at a second rate if the watercraft is traveling at a speed below the preset value.
Inventors:
Isao Kanno
Application Number:
JP34130499A
Publication Date:
May 12, 2010
Filing Date:
November 30, 1999
Export Citation:
Assignee:
YAMAHA HATSUDOKI KABUSHIKI KAISHA
International Classes:
B63H20/00; F02B61/04; F02D29/02; F02B75/20; F02D31/00; F02M3/07; F02M35/16; F02B75/02; F02B75/18
Domestic Patent References:
| JP10176560A | ||||
| JP62178741A | ||||
| JP61104132A | ||||
| JP7156878A |
Attorney, Agent or Firm:
Masao Maeda