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US 10,871,092 B2Granted
Blow-by gas treatment device for internal combustion engine
AssigneeToyota Jidosha Kabushiki Kaisha
InventorMasami Ishikawa
Life of this patent
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Abstract
A blow-by gas treatment device includes a first blow-by gas pipe, a second blow-by gas pipe, a first pipe joint located on a first head cover, the first blow-by gas pipe being connected to the first pipe joint, a second pipe joint located on a second head cover, the second blow-by gas pipe being connected to the second pipe joint, a first union located on the first pipe joint, a second union located on the second pipe joint, and a pressure sensor connected to the first pipe joint by the first union and connected to the second pipe joint by the second union.
Claims4
A blow-by gas treatment device comprising:
- blow-by gas pipes configured to cause blow-by gas in a space defined by a cylinder head and a head cover in an internal combustion engine to flow back into an intake pipe, the blow-by gas pipes including
- a first blow-by gas pipe connected to the intake pipe, and
- a second blow-by gas pipe connected to a part of the intake pipe that differs from a part of the intake pipe connected to the first blow-by gas pipe;
- a first pipe joint located on the head cover, wherein the first blow-by gas pipe is connected to the first pipe joint;
- a second pipe joint located on the head cover, wherein the second blow-by gas pipe is connected to the second pipe joint;
- a first union located on the first pipe joint, wherein an inside of the first union communicates with an inside of the first pipe joint;
- a second union located on the second pipe joint, wherein an inside of the second union communicates with an inside of the second pipe joint;
- and
- a pressure sensor connected to the first pipe joint by the first union and connected to the second pipe joint by the second union;
- a first connection pipe extending from the pressure sensor to the first union;
- and
- a second connection pipe extending from the pressure sensor to the second union.
9 more elements
Dependencies are inferred from the claim text.