Internal-combustion engines – Accessories – Covers – trays – vibrators – corrosion inhibitors – air filters
Patent
1975-12-01
1977-05-03
Husar, C. J.
Internal-combustion engines
Accessories
Covers, trays, vibrators, corrosion inhibitors, air filters
123 4115, 123196S, 200 83T, F02B 7708
Patent
active
040208184
ABSTRACT:
Oil pressure delay check valve and pressure switch for unattended Diesel engine to shut off the fuel supply valve after a low oil pressure signal, and to delay opening of the valve for a predetermined time interval. This delay is attained by the closing of a normally open pressure switch upon pressures decreasing from the order of 8 psi and by bleeding the oil pressure past a check valve through a bleeder tube in cooperation with an accumulator, from a pressure in the order of 8 psi to a pressure in the order of 5 psi to accommodate the opening of a normally closed switch as the pressure decrease from the order of 5 psi. The two switches are in series and when closed, energize the solenoid of an electrically energizable valve to shut off the supply of fuel to the Diesel engine. As the oil pressure decreases, one pressure switch will close and remain closed while the other pressure switch will open in a predetermined time delay interval and effect opening of the fuel supply valve. The delay check valve connected with the oil pressure manifold of the engine is spring-biased into a closed position and has the bleeder tube leading therethrough affording communication between the valve inlet and the valve chamber. The normally closed pressure switch in series with the main oil supply pressure switch is connected with the valve chamber and receives pressure therefrom. An accumulator connected with the valve chamber accumulates oil under pressure and when the oil pressure reaches 8 psi or more, the normally open switch will close, and when the oil pressure in the valve chamber drops below 8 psi, the trapped oil pressure will bleed down through the bleeder tube to 5 psi, and accommodate opening of the fuel supply valve and the establishment of the supply of fuel to the engine.
REFERENCES:
patent: 872039 (1907-11-01), Adams
patent: 2222542 (1940-11-01), Robison
patent: 2558830 (1951-07-01), Drane et al.
patent: 2648016 (1953-08-01), Van Gastle
patent: 2702840 (1955-02-01), Jackson et al.
patent: 3060290 (1962-10-01), Gagan
patent: 3202161 (1965-08-01), Richards
patent: 3533390 (1970-10-01), Goodwin
patent: 3533391 (1970-10-01), Lockmuller
patent: 3590798 (1971-07-01), Goodwin
patent: 3853110 (1974-12-01), Van der Meowe
Lesnick George
Marshall John M.
Controlled Power Products Company
Husar C. J.
Lazarus Ira S.
LandOfFree
Oil pressure delay check valve and pressure switch for shutting does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Oil pressure delay check valve and pressure switch for shutting , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Oil pressure delay check valve and pressure switch for shutting will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-340085