Patent ID: 9115654
Filing Date: 2015-08-25
Classification: F01L,F02D

Abstract:
1. An internal combustion piston engine based on a four-stroke process, comprising a crankcase in which at least one cylinder/piston assembly is arranged, a piston being guided by a connecting rod connected to a crankshaft, at least one cylinder head for closing a cylinder, each of whose intake and exhaust channels are controlled by at least one intake valve and at least one exhaust valve, each of said intake and exhaust valves being actuable by a rocker arm or a finger lever driven by a camshaft, the rocker arms or finger levers being guided on at least one axle, and further comprising a brake control device comprising at least one hydraulic adjusting piston that engages a component that opens at least one of the exhaust valves additionally and intermittently, a pressure source for a hydraulic fluid being associated with an adjusting piston, and a supply of the hydraulic fluid to the adjusting piston being controlled by at least one electrically operable switching valve, a compression relief cam for each of the at least one cylinder/piston assembly of the internal combustion piston engine is arranged on the camshaft, said compression relief cam being operatively connected to a compression relief rocker arm or a compression relief finger lever, and the adjusting piston is configured as a coupling pin for connecting the compression relief rocker arm or the compression relief finger lever to the rocker arm or arms or finger lever or levers of the exhaust valve or valves, wherein the adjusting piston is operatively connected to cylinders that are fixed on the compression relief rocker arm or the compression relief finger lever and on the rocker arm or arms or finger lever or levers of the exhaust valve or valves, and the cylinders are at least partially closed at ends thereof turned away from each other, with one of the cylinders comprising on an outer end thereof a pressure fluid connection, and another one of the cylinders comprises on a turned-away end thereof a compression spring.