Internal-combustion engines – Two-cycle – Rear compression
Patent
1997-08-27
1998-11-10
Moulis, Thomas N.
Internal-combustion engines
Two-cycle
Rear compression
123DIG3, 123DIG5, F02B 3304
Patent
active
058328823
ABSTRACT:
Fuel to which a predetermined pressure is applied is supplied to an electronically controlled fuel injection system of a engine for models in order to improve the rotation stability during low speed operation and the response to rapid acceleration or deceleration.
The pulsatory air pressure is generated in a crank chamber of a engine for models during operation. An air pressure intake guide 51 of a fuel pressure control valve 1 receives air pressure from the crank chamber. The air intake guide is provided with an excessive pressure leak valve the actuation pressure of which is adjustable. The air pressure intake guide communicates with interposition of a check valve 56 to a controlled air pressure supply passage 54 which communicates to a fuel tank. The check valve 56 supplies the positive pressure of the pulsatory air pressure from the controlled air pressure supply passage to the internal of the fuel tank. All the positive air pressure supplied to the air pressure intake guide 51 is supplied to the fuel tank when the pressure in the fuel tank is below a specified pressure. The air pressure supplied to the air pressure intake guide 51 actuates a control ball 60 of the excessive pressure leak valve 57 and is released to the outside. The check valve 56 prevents the air pressure in the fuel tank from flowing inversely.
REFERENCES:
patent: 2579023 (1951-12-01), Thomas
patent: 2935057 (1960-05-01), Perlewitz
patent: 3734072 (1973-05-01), Yamda
patent: 4359975 (1982-11-01), Heidner
patent: 4471728 (1984-09-01), Borst et al.
patent: 5488933 (1996-02-01), Pham
patent: 5700402 (1997-12-01), Jones et al.
Futaba Denshi Kogyo K.K.
Moulis Thomas N.
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