Mazda Motor Corporation

Mazda Motor Corporat Ion

Daikyonishikawa Corporation

Naoki Nagano

Shinichi Hikitani

Tomokuni Kusunoki

Masanobu Koutoku

Toshinori Ueno

Katsuya Murakami

Hajime Umehara

Toshimichi Akagi

Hidesaku Ebesu

Tatsunori Kiyomihara

Hirosato Izumi

Hirotaka Kitaoka

Tatsuhiko Iwasaki

Nobuyuki Nakayama

Kunio Takahashi

Shinji Takayama

Tatsuya Takahata

Masaaki Sato

Kenji Sugasaki

Shin Kodama

Nobuhiko Yokoyama

Shinji Watanabe

Kazuma Kondou

Sakumi Haseto

Masahide Kanemori

Yuma Yamaga

Tadashi Udo

Masanori Ogawa

Yoshiyuki Yamashita

Haruo Etchu

Hiromasa Nakagawa

Megumi Toyota

Takahide Ohhira

Michiyuki Miura

Taiga Kamiji

Yukio Jo

Shunsuke Fukuda

Aoi Oizumi

Masayuki Nagayoshi

Tomoya Kozono

A cooling system includes: a coolant circuit through which a coolant for cooling an electric motor and electrical equipment circulates; a pump that feeds the coolant; and a degas tank that separates the bubbles from the coolant. The coolant circuit connects the devices in series. The degas tank is disposed at an upper stage, a first device as at least one of the electric motor, the electrical equipment, and the pump is disposed at a lower stage, and a remaining second device is disposed at a position that is above the lower stage and is as high as the degas tank or lower than the degas tank. The coolant circuit connects the degas tank, the second device, and the first device in this order, and the coolant flows in this order.

Cooling system for electric drive vehicle

A cooling device for a vehicle is provided, which includes a first coolant channel through which a first coolant for cooling an engine flows, a second coolant channel through which a second coolant for cooling a motor drive flows, and an oil channel through which oil for lubricating inside a transmission flows. The oil channel includes a first heat exchanger configured to exchange heat between the first coolant and the oil, a second heat exchanger configured to exchange heat between the second coolant and the oil, and a valve configured to adjust a first flow rate of the oil circulating through the first heat exchanger and a second flow rate of the oil circulating through the second heat exchanger.

Cooling device for vehicle

To suppress cooling performance from being degraded by bubbles in a coolant in a cooling system for an electric drive vehicle, the cooling system includes: a first coolant circuit through which the coolant for cooling an electric motor and electrical equipment circulates; a first pump that is connected to the first coolant circuit and feeds the coolant; and a first degas tank that is connected to the first coolant circuit and separates the bubbles from the coolant. The first coolant circuit connects the electric motor, the electrical equipment, the first pump, and the first degas tank in series. The first pump and the electric motor are connected in a manner to be sequentially aligned in the first coolant circuit. The coolant flows from the first pump to the electric motor.

An intake-air temperature controlling device for an engine is provided, which includes an engine body, an intake passage, an air intake part, an intake air temperature adjuster configured to adjust air temperature taken in through the air intake part to the passage, and a controller. An operating range in which the CI combustion is performed has a lean operating range in which A/F of mixture gas formed inside the cylinder, or G/F that is a relationship between the total weight G of gas inside the cylinder and a weight F of fuel fed to the cylinder is relatively low, and a rich operating range in which the A/F or G/F is relatively high. When the engine is in the lean operating range, the controller outputs a control signal to the intake air temperature adjuster so that the air temperature is increased, as compared in the rich operating range.

Intake-air temperature controlling device for engine

A compression ignition engine with a supercharger is provided, which includes one or more valves configured to switch a state between a first state where intake air is boosted by the supercharger and a second state where it is not boosted, a fluid temperature adjuster configured to adjust a temperature of engine coolant to be supplied to a radiator from an engine body, and a controller. When the engine operates in a high-load range, the controller controls the combustion mode to be in a compression ignition combustion mode, and causes the valve(s) to be in the first state, and in a low-load range, the controller causes the valve(s) to be in the second state. In the high-load range, the controller outputs a control signal to the fluid temperature adjuster so that a target temperature of the engine coolant is lowered than that in the low-load range.

Compression ignition engine with supercharger

An intake-air temperature controlling device is provided, which includes an engine body, an intake passage, a supercharger, a first passage, a second passage, an intake air flow rate adjuster, an intercooler, a pump, and a controller. The controller outputs a control signal to the pump so that coolant is supplied to the intercooler in a first operating range in which the intake air flow rate adjuster at least partially opens the first passage to supply intake air boosted by the supercharger to the engine body, and outputs a control signal to the pump so that the coolant is supplied to the intercooler also in a second operating range in which an engine load is below a given load, and the intake air flow rate adjuster opens the second passage and closes the first passage to supply the intake air to the engine body in a non-boosted state.

Intake-air temperature controlling device for engine with supercharger

Disclosed herein is a structure for mounting a heat exchanger in a vehicle. The structure includes a shroud, and a mount supporting a supported portion and allowing vertical vibrations of the supported portion with respect to each side of the shroud in a vehicle width direction. The supported portion is provided on each side of the heat exchanger in the vehicle width direction. The mount body of the mount is mounted in a mounting portion located higher than a fixed portion on the side of the shroud in the vehicle width direction. The fixed portion is fixed to a body member of the vehicle. A receiver supporting a lower surface of the mount body serves as the mounting portion. A fixing bracket for fixing the mount body to the side of the shroud is provided in front of or behind the mount body of the mount in the vehicle.

Structure for mounting vehicle heat exchanger

In the case of mounting a liquid storage tank or an intake air resonator on a substantially frame-shaped resin shroud panel () with an opening () in which a radiator () is disposed, the shroud panel () is integrally formed at its both lateral sides with body fastening parts () which will be fastened to right and left front side frames (), respectively, and the body fastening parts () are integrally formed on their outsides in the vehicle width direction with casing placement parts () on which will be placed a casing () for a liquid storage tank and a casing () for an intake air resonator in proximity to the body fastening parts (), respectively.

Vehicle front end structure

An engine cooling apparatus capable of assuring an adequate air-water separating function in an arrangement wherein an air-water separating tank having a pressure valve is provided at a point along a coolant passageway. The apparatus has a closed circulating system constructed from an engine, a radiator and a coolant passageway connecting the engine and radiator, wherein, a coolant for cooling the engine is made to circulate in the closed circulating system from upstream to downstream, and air which mixes with the coolant is discharged outside the closed circulating system. The apparatus includes a branch passageway which branches off from a first intermediate portion of the coolant passageway and merges with the coolant passageway at a second intermediate portion thereof that is downstream of the first intermediate portion, and an air-water separating tank arranged in an intermediate portion of the branch passageway and having a pressure valve which opens to the atmosphere at a prescribed pressure in order to discharge the air to the outside of the closed circulating system.

Engine cooling apparatus

A V-type engine is constructed so that one bank of cylinders is located rearward, in a longitudinal direction of the engine, relative to the other bank of cylinders so that a space is formed in front of a front surface of a cylinder block of the engine. In the space, a casing or casings for a fluid passage are provided. Supplemental apparatuses, such as a water pump, an alternator, a compressor, and an oil pump, are formed so as to be driven by belts transmitting drive power from a crankshaft of the V-type engine. One of the belts has tension applied to it by a tensioner, which is formed on a bracket. The bracket is fixed to the casing or casings by bolts, which are used for both fixing the casing or casings to the cylinder block and for fixing the bracket to the casing or casings. As a result, both of the bracket and the casing or casings are firmly fixed to the cylinder block within a compact space, even when the tensioner is located far from the front surface of the cylinder block.

Arrangement for driving at least one supplemental apparatus of a V-type

Growing community of inventors

Hiroshima, Japan

Naoki Nagano