Blowby gas passage structure
First Claim
1. A blowby gas passage structure for returning a blowby gas leaking into a crankcase of an internal combustion engine to the internal combustion engine, the blowby gas passage structure comprising:
- an intake passage which can be connected to the internal combustion engine for allowing the blowby gas to be returned to the internal combustion engine, and in which a throttle valve is disposed;
a first passage for allowing the blowby gas to be introduced into the intake passage downstream from the throttle valve, the first passage including a joint portion connected to the intake passage; and
a heating device provided in the joint portion of the first passage in such a manner as to be integral with the intake passage.
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Accused Products
Abstract
A blowby gas passage structure for returning a blowby gas leaking into a crankcase of an internal combustion engine to the internal combustion engine comprises: an intake passage which can be connected to the internal combustion engine for allowing the blowby gas to be returned to the internal combustion engine, and in which a throttle valve is disposed; a first passage for allowing the blowby gas to be introduced into the intake passage downstream from the throttle valve, the first passage including a joint portion connected to the intake passage; and a heating device provided in the joint portion of the first passage in such a manner as to be integral with the intake passage.
28 Citations
13 Claims
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1. A blowby gas passage structure for returning a blowby gas leaking into a crankcase of an internal combustion engine to the internal combustion engine, the blowby gas passage structure comprising:
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an intake passage which can be connected to the internal combustion engine for allowing the blowby gas to be returned to the internal combustion engine, and in which a throttle valve is disposed; a first passage for allowing the blowby gas to be introduced into the intake passage downstream from the throttle valve, the first passage including a joint portion connected to the intake passage; and a heating device provided in the joint portion of the first passage in such a manner as to be integral with the intake passage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A blowby gas passage structure for returning a blowby gas leaking into a crankcase of an internal combustion engine to the internal combustion engine, the blowby gas passage structure comprising:
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an intake passage which can be connected to the internal combustion engine for allowing the blowby gas to be returned to the internal combustion engine; a throttle body having a bore in which a throttle valve is housed; a first passage for allowing the blowby gas to be introduced into the intake passage downstream from the throttle valve; a second passage for allowing ventilating air to be introduced from the intake passage upstream of the throttle valve to the crankcase; a through hole formed opening in a side surface of the throttle body and communicating with the bore; and a heating device for heating the throttle body; one end of the first passage being connected to the through hole to introduce the blowby gas from the bore to the intake passage through the through hole. - View Dependent Claims (11, 12, 13)
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Specification