Mazda Motor Corporation

Shinji Fujihira

Hiroshi Kinoshita

Takayuki Tominaga

Isao Toda

Tsuyoshi Goto

Takashi Kariya

Kei Yonemori

Seiyo Hirano

Tomohiro Koguchi

Ryotaro Nishida

Tatsuya Takahata

Isao Tohda

Ken Yoshida

Masaaki Sato

Wataru Kuwahara

Yoshiaki Noguchi

Ryuichiro Amano

Kazuo Isayama

Shunki Okazaki

Takeshi Nakahira

Takeshi Yokoo

Ichirou Hirose

Satoshi Maruyama

Masanao Yamada

Yuko Yanagidani

Shinji Kanbara

Tomoya Kakite

Mitsuhiro Hirota

A vehicle driving apparatus is provided that includes a drive motor, an internal combustion engine, and an electrical generator and can inhibit a weight balance and motion performance of a vehicle from being deteriorated and lowered. A vehicle driving apparatus driving a vehicle by motive power of a motor, the vehicle driving apparatus including a drive motor that is driven by electric power, an internal combustion engine that produces motive power by fuel, and an electrical generator that is driven by the internal combustion engine, the vehicle driving apparatus being characterized in that the drive motor, the internal combustion engine, and the electrical generator are arranged in a vehicle width direction of the vehicle in order of the drive motor, the internal combustion engine, and the electrical generator.

Vehicle driving apparatus

An engine EGR system is provided, which includes an engine body, an intake passage, an exhaust passage and an EGR passage configured to recirculate exhaust gas as EGR gas to the intake passage. The EGR passage includes an EGR cooler and an EGR internal passage constituting the EGR passage upstream of the EGR cooler, and including a passage passing through a cylinder head. The EGR internal passage has a bent pipe part including a first bent portion at which an upstream portion of the EGR internal passage is bent away from a gas inflow port of the EGR cooler, a second bent portion located downstream of the first bent portion and bending the EGR internal passage toward the gas inflow port, and an intermediate portion connecting the first and the second bent portions by being disposed therebetween. The water-cooling passage is disposed around the bent pipe part.

EGR system of engine

An engine EGR system is provided. An EGR passage includes an EGR cooler, an EGR internal passage passing through a cylinder head on an upstream side of the EGR cooler, and a relay passage extending outside the cylinder head and connecting the EGR internal passage to the EGR cooler. The EGR cooler formed in a columnar shape is arranged above an intake manifold so as to locate a gas inflow port on a first end surface side and a gas outflow port on a second end surface side, and the relay passage communicates with the EGR internal passage on an external side of the engine compared to a head EGR gas exit. The EGR cooler inclines downward from the gas outflow port toward the gas inflow port, and the relay passage is connected to the gas inflow port while being bent downward toward the upstream side.

The present disclosure improves serviceability of an automotive powertrain unit without deteriorating NVH characteristics. A powertrain includes an engine having a cylinder head; and a transmission coupled to the engine. The engine includes an EGR connected between an intake passage and an exhaust passage. The transmission is provided below the cylinder head in a vehicle height direction. The EGR is provided along a side of the cylinder head toward the transmission, and supported by the transmission.

Automotive powertrain unit

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.

Intake system of an engine

A balancer case ( ) is coupled to the lower portion of a cylinder block ( ) through turrets ( ) made of a material having almost the same coefficient of linear expansion as that of a crankshaft ( ) and balancer shaft ( ).

Engine balancer apparatus

An intake apparatus for an engine is provided with an intake duct, arranged in an engine room, for supplying intake air to the engine. An auxiliary duct is connected to the intake duct and designed so that the intake air can be further introduced thereto. A valve unit is arranged in the auxiliary duct, for causing the auxiliary duct to communicate with the intake duct in a specific driving state requiring a high engine output.

Intake apparatus for engine

Growing community of inventors

Aki-gun, Japan

Shinji Fujihira