Patent ID: 11927119
Assignee: DEUTZ AKTIENGESELLSCHAFT
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. An oil return valve for a crankcase ventilation system of an internal combustion engine, the oil return valve being arranged in a crankcase of the internal combustion engine and comprising:
a first bore in the crankcase;
a second bore in the crankcase;
wherein the first bore and the second bore jointly form a stepped bore; and
a third bore in the crankcase;
wherein the third bore ends in the second bore;
wherein a longitudinal axis of the first bore and a longitudinal axis of the third bore are spaced from each other;
a valve cylinder which is inserted in the second bore and completes the oil return valve; and
a valve pipe arranged in the first bore such that an annular chamber is formed between the valve pipe and a bore wall of the first bore.