Internal-combustion engines – Accessories – Covers – trays – vibrators – corrosion inhibitors – air filters
Patent
1986-02-10
1988-09-13
Myhre, Charles J.
Internal-combustion engines
Accessories
Covers, trays, vibrators, corrosion inhibitors, air filters
F02B 7700
Patent
active
047701374
ABSTRACT:
A cylinder control device for a variable-cylindered engine. The device comprises a body slidable within a bore formed in a block and urged by a spring always in contact with a cam, a plunger mounted in the body and slidable by hydraulic pressure in the direction perpendicular to the direction of sliding of the body, the plunger having a groove which is adapted to be engaged by the upper end of a valve stem 40 and an escape bore which is adapted to be positioned right above the upper end of the valve stem when the plunger is slided to a cylinder-inoperative position; and means for controlling said application of the hydraulic pressure to the plunger under the control of a computer. When the computer provides an instruction for normal operation of the cylinder, the plunger is held at a position where the upper end of the valve stem engages with the groove in the plunger so that, when the cam is rotated, the valve stem is depressed through the body thereby to open the valve port, whereas, when the hydraulic pressure is applied to the plunger so as to urge the plunger to a valve-inoperative position, the upper end of the valve stem escapes into the escape bore in the plunger when the body is depressed by the cam, so that the valve stem is not depressed and the valve is kept closed, thereby keeping the cylinder inoperative.
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Kobayashi Yukimori
Okabe Yoshio
Aisin Seiki Kabushiki Kaisha
Myhre Charles J.
Okonsky David A.
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