Toyota Jidosha Kabushiki Kaisha

Denso Corporation

Ryo Yoshioka

Takahiro Yamafuji

Takashi Koyama

Yuichi Sakajo

Takanori Nakada

Tadashi Akiyama

Kazutoshi Nishinakamura

Kashirou Fukami

Yuichiro Hirata

A liquid recovery device includes: an outer pipe that includes an introduction portion into which a gas-liquid two-phase fluid is introduced; an inner pipe disposed inside the outer pipe at a position where the introduction portion is extended to a downstream side in a flow direction of the gas-liquid two-phase fluid; a double pipe portion that includes a clearance part provided between an inner side of the outer pipe and the inner pipe at a downstream side of the outer pipe in the flow direction; a communication hole that communicates the inner side of the inner pipe with the clearance part; and a drainage portion connected to the clearance part to discharge the liquid-phase fluid flowing into an interior of the clearance part.

Liquid recovery device

A fuel cell system includes a water supply unit configured to supply water from a first water storage unit to a second water storage unit, and a water usage unit uses water in the second water storage unit. The first and second water storage units store produced water form the fuel cell. When the amount of water stored in the first water storage unit exceeds a first predetermined value and the amount of water stored in the second water storage unit is smaller than a second predetermined value, water is supplied from the first water storage unit to the second water storage unit. When water is being used by the water usage unit, water is supplied from the first water storage unit to the second water storage unit even when the amount of water stored in the second water storage unit is not smaller than the second predetermined value.

Fuel cell system

A fuel cell system includes a fuel cell, a water storage unit configured to store water recovered from the fuel cell and be able to drain the stored water, a water usage unit configured to use the water in the water storage unit, and a control unit configured to control a drain of the water from the water storage unit. The control unit is configured to, when a first predetermined time has elapsed since a last drain of the water from the water storage unit, drain the water from the water storage unit. The control unit is configured to, when it is predicted that the water in the water storage unit is used by the water usage unit within a second predetermined time shorter than the first predetermined time, not drain the water from the water storage unit even when the first predetermined time has elapsed since the drain of the water from the water storage unit.

In a motor lock determination device (), a lock determination on an electric motor () is performed such that: a first detection value (PI), which is a detection value (P) of a refrigerant pressure sensor () during a stop of an electric fan (), is detected, and a second detection value (P), which is a detection value (P) of the refrigerant pressure sensor () after the electric fan () is driven for a first predetermined time (&#x394;), is detected; when the second detection value (P) is equal to the first detection value (PI) or more than the first detection value (PI), it is determined that a motor lock occurs; and when the second detection value (P) is less than the first detection value (PI), it is determined that no motor lock occurs.

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Toyota, Japan

Ryo Yoshioka