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US 11,927,119 B2Granted
Oil return valve for a crankcase ventilation system
AssigneeDeutz Aktiengesellschaft
InventorsJohannes Klosterberg, Marco Sliwa, Thomas Werner
Life of this patent
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Abstract
An oil return valve for a crankcase ventilation system of an internal combustion engine is provided that is essentially situated in the crankcase (3) and includes a valve cylinder (1) and at least one valve pipe (2).
Claims11
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.
7 more elements
An assembly comprising:
- a crankcase including a first bore in the crankcase;
- and
- 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;
- an oil return valve comprising a valve cylinder and a valve pipe, the valve cylinder being fixed to the crankcase, the valve pipe extending within the first bore and forming an annular gap between an inner circumference of the first bore and outer circumference of the valve pipe.
6 more elements
Dependencies are inferred from the claim text.