Title:
PRESSURE CANCELLATION HOLE
Document Type and Number:
Japanese Patent JP2008303870
Kind Code:
A
Abstract:
To keep spring repulsion force as small as possible since micro entrance is slightly depressed when the micro entrance gripping a micro rotor provided at each corner of a rotor, a suction rotary valve, and an exhaust rotary valve touches and rotates, and unnatural force is applied on an intake rotary valve chord part, an exhaust rotary valve chord part, a rotor rear part and a rotor front part if spring repulsion force is large, although spring repulsion force need to be kept large since high pressure acts on the micro entrance 4 during explosion process.
This pressure cancellation hole is characterized by providing a hole passing to a section near the micro entrance 4 or to a spring chamber 1 at a bottom of the micro entrance 4 through the micro rotor and the micro entranced.
Application Number:
JP2007186301A
Publication Date:
December 18, 2008
Filing Date:
June 07, 2007
International Classes:
F02B55/02; F01C1/28; F01C19/02; F02B53/00
Domestic Patent References:
JP2006052721A | 2006-02-23 | | | |
JPS5145001B1 | 1976-12-01 | | | |
JPS404961B1 | | | | |