CS205772B1 - Facility for venting the motor casing of the four-strok - Google Patents

Description

The invention also relates to a four-stroke piston engine air-purifying device coupled with an oil / oil separator. i are the 'known crank' compartments of the engine casing, the interior of which (the space is airtightly closed and interconnected by the air to the free atmosphere) or in accordance with current hygiene regulations with the interior of the scrubber. In order to prevent oil leakage around the toylium shafts, static pressure-reducing pumps are also provided in the crankcase housing. Different types of pressure utilizing pressure pulsation to reduce pressure / static pressure In the engine assembly, a rotating spool with apertures positioned therein that the crank space was connected to the air duct at the moment of overpressure.

The disadvantage of m-thrust crankshaft thrusters (housings not equipped with a special pressure relief device) is the unpleasant engine oil of the engine. Valves and non-sliders - reducing the crankcase pressure / does not solve this problem.

These disadvantages are overcome by the device according to the invention, which is present in the fact that there is a hollow shaft in the engine housing, which is connected to the crankshaft, the cavity of which is interconnected by radial openings with the stoor. It is connected to the wall of the ears by its open face. In the interior of the intake silencer. Advantageously, the radial bores of the hollow shaft are located between the side walls of the two discs fixedly connected to the idle shaft, m.

The device according to the invention is simple, suitable for one to olsmilvalo motors and preferably (as hollow shaft, one of the shafts or other drive). The whole device has no energy loss and is a cost increase.

An example of an embodiment according to the invention is shown in the accompanying drawing, which shows a schematic cross-section of the engine and the silencer.

The motor housing 1 carries a cylinder 2 with a cylinder head 3. In the space 4 of the mi-toric box 1, the crankshaft 5 'with a piston 6 is rotatably mounted. the gearwheel 10 is also fixedly mounted on the hollow shaft 9. The hollow shaft cavity 9 (is connected to (crankshaft 4) of the radial shaft 12 with its Through the open face 13, the cavity 11 is connected to the inner 14 of the intake silencer 16. The radial openings 12 of the dual shaft 9 are located between the side wall 17, the outlet wheel 8 and the side wall. wall 18 of the gear wheel 10.

Za provolzu. The crankshaft 5 and the geared shaft 9 are rotated therewith. During centrifugal forces, the oil particles specifically separated from the air are separated from the air and the oil circulation is returned. The escaping air, by a slight overpressure in the space 4, flows through the air duct 14 into the interior 15 of the intake silencer 16 and further into the combustion space of the midfion.

Claims (2)

SUBJECT An apparatus for venting an engine housing of a four-stroke piston engine connected to the interior of an intake silencer via an oil separator and an oil separator, characterized in that a hollow shaft (9) is disposed in the chamber (4) of the engine (1). - with a crankshaft (5) and whose cavity (1!) is connected by radial bores (12) to the crankcase (4) of the engine housing (1) and In an open face, (13) it is connected to an air duct (14) that cleans the interior (15) of the intake silencer (16). Device according to Claim 11, characterized in that the radial bores (12) of the hollow shaft (9) are located between the axle wall (17) of the sprocket (8) and the side wall (18) of the gear wheel (10) the shaft (9).