Device for switching a combustion engine from one mode of operat

Details Device for switching a combustion engine from one mode of operat Device for switching a combustion engine from one mode of operat

1993-08-19

1995-04-11

Kamen, Noah P.

Internal-combustion engines

Engine speed regulator

Responsive to deceleration mode

F02D 1304

Patent

active

054048516

ABSTRACT:
A device for switching a combustion engine from a propelling mode to a braking mode, wherein the combustion engine has at least one intake valve and at least one exhaust valve per cylinder, includes a cam shaft for actuating the intake and exhaust valves of each cylinder and a hydraulic linkage made of transmitting pistons and receiving pistons for connecting the cam shaft to the intake and exhaust valves of each cylinder. The cam shaft has a first intake cam for actuating a first transmitting piston and a second intake cam for actuating a second transmitting piston, the first and the second transmitting pistons controlling the intake valve, and a first exhaust cam for actuating a third transmitting piston and a second exhaust cam for actuating a fourth transmitting piston, the third and fourth transmitting pistons controlling the exhaust valves. A control system has a non-rotatable control slide connected between the transmitting and receiving pistons. The control slide has transverse bores for connecting and disconnecting the transmitting and receiving pistons. The device further includes a hydraulic system for switching the control slide from a first operating position for the propelling mode into a second operating position for the braking mode.

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