Intake system of an engine
AssigneeMazda Motor Corporation
InventorsShinji Fujihira, Masanao Yamada, Takeshi Yokoo, Shunki Okazaki, Hiroshi Kinoshita
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Abstract
An intake system of an engine comprises an intake module, in which a throttle body joint portion and an upstream portion of an intake manifold are formed in a single structure, and a downstream portion of the intake manifold extending from an engine body. A downstream end of the intake module is joined to the downstream portion of the intake manifold and an end portion of the intake module opposite to its portion joined to the downstream portion of the intake manifold is connected to an uppermost part of an oil filler pipe which is connected to the engine body. In this construction, the intake module is supported by the engine body via the oil filler pipe.
Claims24
An intake system of an engine comprising:
- an intake module in which a throttle body joint portion and an upstream portion of an intake manifold are formed in a single structure;
- and
- a downstream portion of the intake manifold, said downstream portion extending from one side surface of an engine body and being connected to a downstream end of the intake module;
- said engine including an oil filler pipe of which one end is connected to the other side surface of the engine body and the opposite end thereof is connected to the upstream end of the intake module such that the intake module is supported by the engine body via the oil filler pipe so that the intake module extends from the one side surface of the engine body towards the other side surface of the engine body and the substantial portion of the intake module is placed over the top surface of the engine body.
An intake system of an engine comprising:
- an intake module in which a throttle body joint portion and an upstream portion of an intake manifold are formed in a single structure;
- and
- a downstream portion of the intake manifold, said downstream portion extending from an engine body and being connected to a downstream end of the intake module;
- said engine including an oil filler pipe of which one end is connected to the engine body and the opposite end thereof is connected to the intake module such that the intake module is supported by the engine body via the oil filler pipe;
- wherein the one end of the oil filler pipe is connected to an oil pan provided in the engine body and an oil catch chamber connected to the opposite end of the oil filler pipe is integrally formed in the intake module.
An intake system of an engine comprising:
- an intake module in which a throttle body joint portion and an upstream portion of an intake manifold are formed in a single structure;
- and
- a downstream portion of the intake manifold, said downstream portion extending from an engine body and being connected to a downstream end of the intake module;
- said engine including an oil filler pipe of which one end is connected to the engine body and the opposite end thereof is connected to the intake module such that the intake module is supported by the engine body via the oil filler pipe;
- wherein the engine body has two cylinders, three intake ports opening into combustion chambers formed in each of the two cylinders, and said intake module increases a first constituent section having two intake passages for supplying intake air to one each intake port opening into the cylinders and a second constituent section having four intake passages for supplying intake air to two each intake ports opening into the cylinders, said first constituent section being disposed above said second constituent section.
An intake system of an engine comprising:
- an intake module in which a throttle body joint portion and an upstream portion of an intake manifold are formed in a single structure;
- and
- a downstream portion of the intake manifold, said downstream portion extending from an engine body and being connected to a downstream end of the intake module;
- said engine including an oil filler pipe of which one end is connected to the engine body and the opposite end thereof is connected to the intake module such that the intake module is supported by the engine body via the oil filler pipe;
- wherein the oil filler pipe is formed of synthetic resin material and an oil catch chamber is integrally formed with the oil filler pipe.
Dependencies are inferred from the claim text.