Heat insulating engine

Internal-combustion engines – Particular piston and enclosing cylinder construction – Cylinder detail

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

123668, F02B 7508

Patent

active

048649872

ABSTRACT:
In a heat insulating engine of this invention, the piston head is made up of a retainer body, a heat insulating member mounted on the retainer body, and a thin ceramic member formed over the upper surface of the heat insulating member exposed to the burning gas and over the circumference of the former two members. The retainer body is mounted to a piston skirt through a heat insulating gasket. The cylinder is so constructed that the piston head does not contact the cylinder liner upper portion of the head-liner but can contact the cylinder liner lower portion. When the piston is situated close to the top dead center, the heat insulating structure of the combustion chamber prevents heat from being released from the piston head. When the piston is pushed down, the heat of the piston head is released through the cylinder liner lower portion, rapidly reducing the temperature in the combustion chamber, preventing fresh air taken in from thermally expanding and therefore preventing a reduction in the air intake efficiency.

REFERENCES:
patent: 1857077 (1932-05-01), Adamson
patent: 3081754 (1963-03-01), Georges
patent: 4074671 (1978-02-01), Pennila
patent: 4245611 (1981-01-01), Mitchell et al.
patent: 4328772 (1982-05-01), Heydrich et al.
patent: 4538562 (1985-09-01), Matsui et al.
patent: 4590901 (1986-05-01), Mizuhara
patent: 4646707 (1987-03-01), Pfefferle
patent: 4796572 (1989-01-01), Heydrich

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Heat insulating engine does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

     

Profile ID: LFUS-PAI-O-908743

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.