Internal-combustion engines – Charge forming device – Gaseous fuel and air mixer
Reexamination Certificate
2006-07-11
2006-07-11
Kamen, Noah P. (Department: 3747)
Internal-combustion engines
Charge forming device
Gaseous fuel and air mixer
C137S505000
Reexamination Certificate
active
07073490
ABSTRACT:
In a gas-supply system for internal-combustion engines, a pressure-reducing valve is set between the reservoir of the gas and a distribution manifold or rail that feeds the gas to a series of electromagnetically controlled injectors associated to the various cylinders of the engine. The pressure-reducing valve has a piston member that faces a chamber set downstream of a restricted passage defined inside the body of the valve in communication between the inlet connector and the outlet connector. The piston member is pushed by thrust means towards a position in which it causes opening of an open/close element (valve head) that controls the communication between said restricted passage and the inlet connector. The piston member is preferably provided with a single seal gasket that prevents leakage of gas towards the outside through the sliding coupling of the piston member within the respective guide bushing. The thrust means to which the piston member is subject may be constituted by spring means, or else by a pilot-pressure signal, in the case where it is intended to obtain a variable reduction of the pressure according to the operating conditions of the system.
REFERENCES:
patent: 2622611 (1952-12-01), Stark
patent: 4152121 (1979-05-01), van der Weide
patent: 4513775 (1985-04-01), Stoltman
patent: 5150690 (1992-09-01), Carter et al.
patent: 5234026 (1993-08-01), Patterson
patent: 6390075 (2002-05-01), Yamazaki et al.
patent: 0 777 168 (1997-06-01), None
patent: 1 209 336 (2002-05-01), None
Amorese Claudio
De Matthaeis Sisto Luigi
Manodoro Dario
Ricco Mario
Ricco Raffaele
C.R.F. Societa Consortile per Azioni
Kamen Noah P.
LandOfFree
Gas feeding system for an internal combustion engine, having... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Gas feeding system for an internal combustion engine, having..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gas feeding system for an internal combustion engine, having... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3563232