Denso Corporation

Kazuya Makizono

Hiroki Matsuo

Tetsuji Nobuta

Koji Ito

Hikaru Sugi

Toshio Morikawa

Yoshiyuki Yamauchi

Manabu Miyata

Shun Kurata

Yasutaka Kuroda

Toshio Hirata

When the first pressure reducing device is fixed to the accumulator tank and the internal heat exchanger is housed in the accumulator tank , the accumulator, the first pressure reducing device and the internal heat exchanger are integrated into one body. Due to the foregoing, it is possible to eliminate parts for piping to connect the first pressure reducing device with the internal heat exchanger . The mass of the vibration system of the first pressure reducing device including the accumulator tank and the internal heat exchanger is increased. Therefore, even if the valve body in the first pressure reducing device is vibrated, it becomes difficult for other portions to vibrate. Accordingly, it is possible to reduce noise (vibration) generated when refrigerant is decompressed by the first pressure reducing device

Accumulator module

In a receiver for separating gas refrigerant and liquid refrigerant and for storing liquid refrigerant for a refrigerant cycle, refrigerant form a condensing portion of a condenser flows into an upper side of a tank member of the receiver from a first refrigerant inlet and flows into a lower side of the tank portion from a second refrigerant inlet. Further, liquid refrigerant stored in the tank member of the receiver is discharged to an outside through a refrigerant outlet. Accordingly, refrigerant from the condensing portion of the condenser flows into the tank portion of the receiver from both upper and lower sides of a gas-liquid boundary surface. As a result, it can prevent the gas-liquid boundary surface of the receiver from being disturbed during a refrigerant introduction of the receiver, while cooling effect of the upper side of the receiver is effectively improved.

Receiver and refrigerant cycle system

An engine cooling apparatus suitable for use in a vehicle shortens engine warm-up time without decreasing the heat-radiation capacity of a radiator. A shroud is disposed between a radiator and a water-cooled engine. A first air passage for blowing air toward the engine and its auxiliaries is formed in the upper side of the shroud, and a second air passage for discharging air having passed through the radiator to outside the engine compartment is formed in the lower side of the shroud. Accordingly, air is prevented from directly striking the engine and from passing around to the upstream side of the radiator through gaps between the walls of the engine compartment and the radiator. Thus the engine warm-up time is shortened without reducing the heat-radiation capacity of the radiator.

Engine cooling apparatus

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Chiryu, Japan

Kazuya Makizono