Internal-combustion engines – Accessories – Covers – trays – vibrators – corrosion inhibitors – air filters
Patent
1980-03-24
1982-07-06
Feinberg, Craig R.
Internal-combustion engines
Accessories
Covers, trays, vibrators, corrosion inhibitors, air filters
123 9016, 123 9055, F02D 1306
Patent
active
043377394
ABSTRACT:
An internal combustion engine valve deactivator mechanism including a pair of reciprocable cylindrical members and a movable piston therein which together function as a normal tappet when pressurized fluid is fed to a chamber defined between the piston and a first cylindrical member but when the pressurized fluid is exhausted from the chamber the engine valves of the engine remain seated by their respective valve springs while the two cylindrical members are allowed to reciprocate with respect to each other by the piston. Engine oil pressure may be used as the operating fluid for the valve deactivator. An inlet passage formed in the cylinder block feeds pressurized fluid to the chamber in a first position of a control valve located within the cylinder block to move the piston away from the first member to prevent the second member from reciprocating with respect to the first member and thereby enable normal operation of an engine cylinder intake or exhaust valve by its pushrod. An exhaust passage also formed in the cylinder block exhausts the pressurized fluid from the chamber in a second position of the control valve so that the piston is movable towards the first member to allow the second member to reciprocate with respect to the first member to thereby deactivate the valve operation.
REFERENCES:
patent: 2309740 (1943-02-01), Voorhies
patent: 2346737 (1944-04-01), Essel
patent: 2376182 (1945-05-01), Peterson, Jr.
patent: 2948274 (1960-08-01), Wood
patent: 4133332 (1979-01-01), Benson et al.
Feinberg Craig R.
Wolfe W. R.
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