Vertical engine and outboard engine system

Details Vertical engine and outboard engine system Vertical engine and outboard engine system

2006-09-05

2006-09-05

Yuen, Henry C. (Department: 3747)

Internal-combustion engines

Lubricators

Crankcase, pressure control

Reexamination Certificate

active

07100563

ABSTRACT:
Oil jets are mounted in upper two cylinders in a cylinder block of a 4-cylinder vertical engine to inject an oil to rear faces of pistons received in the two cylinders. Thus, although lower pistons are cooled more effectively by the oil dropped by gravitation through oil return bores provided in journal support walls, the upper pistons are forcibly cooled by the oil injected from the oil jets, so that the four pistons can be cooled equally to prevent insufficient cooling and excessive cooling, while minimizing the required amount of the oil.

REFERENCES:
patent: 4516541 (1985-05-01), Yungclas
patent: 5215164 (1993-06-01), Shibata
patent: 5967112 (1999-10-01), Haga et al.
patent: 6484685 (2002-11-01), Kuroda et al.
patent: 6652338 (2003-11-01), Takahashi
patent: 6715460 (2004-04-01), Ashida et al.
patent: 6845744 (2005-01-01), Haman
patent: 2001-200711 (2001-07-01), None

Affiliated with

Also associated with

Rating

Vertical engine and outboard engine system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Vertical engine and outboard engine system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vertical engine and outboard engine system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3547750