Denso Corporation

Imagineering, Inc.

Toyota Jidosha Kabushiki Kaisha

Shigeo Nomura

Yuji Ikeda

Takuya Fuse

Yoshimasa Watanabe

Naoki Watanabe

Tsuyoshi Morimoto

Yasunori Niiyama

Takayuki Sugiura

Yoshinori Futonagane

Tomoyuki Nomura

Naoki Toda

Akito Torii

Yoshiaki Nishijima

Fumihiro Okumura

A controller is configured to, based on a characteristic information of thermal output with respect to a temperature difference between a hot end and a cold end of a working chamber, changes at least one of a flow rate of a heating target fluid in a high temperature heat exchanger and a flow rate of a cooling target fluid in a low temperature heat exchanger. At least one of the flow rate of the heating target fluid in the high temperature heat exchanger and the flow rate of the cooling target fluid in the low temperature heat exchanger is adjusted such that the temperature difference between the hot and cold ends changes in a direction that increases thermal output.

Magnetic heat pump device

In a compression ignition internal combustion enginethat generates electromagnetic wave plasma by emitting electromagnetic waves to a combustion chamberduring a period of a preceding injection, a control devicefor internal combustion engine controls a fuel injection deviceto perform, before a main injection, a preceding injection less in injection quantity than the main injection, while controlling a plasma generation deviceto generate electromagnetic plasma by emitting electromagnetic waves to the combustion chamberduring the period of the preceding injection. The control devicecontrols a condition of heat production due to combustion of fuel from the main injection by controlling the amount of energy of the electromagnetic waves emitted to the combustion chamberduring the period of the preceding injection according to the operating condition of the internal combustion engine main body

Control device for internal combustion engine

An internal combustion engine has an ignition promotion unit that has a function of promoting ignition of fuel sprays formed by the small quantity injections by supplying the fuel sprays with electric energy. The engine is provided with a control device which has a combustion control unit that carries out processing of causing the fuel injection valve to perform the plurality of times of small quantity injections so that fuel sprays formed by the first-time small quantity injection from among the plurality of times of small quantity injections are connected with one another by the fuel sprays formed by the subsequent small quantity injections from among the plurality of times of small quantity injections.

A magneto-caloric effect type heat pump apparatus provides a thermo-magnetic cycle apparatus. A magnetic field modulating device has a rotary permanent magnet. By rotating the permanent magnet, magnetic field applied to a magneto-caloric element is modulated alternatively in a magnetized state and a demagnetized state. A magnetized period, when the magnetic field is applied, is shorter than a demagnetized period, when the magnetic field is removed. Thereby, it is possible to reduce weight of the magnetic field modulating device having the permanent magnet. The magneto-caloric element has a heat exchange portion which varies heat exchanging efficiency depending on flow directions of a heat transport medium. The heat exchanging efficiency in the magnetized period is higher than the heat exchanging efficiency in the demagnetized period. Therefore, it is possible to provide sufficient heat exchanging quantity even in a short magnetized period.

Thermo-magnetic cycle apparatus

When a control valve allows communication through a fuel drain channel, fuel flows into an inner control chamber from an outer control chamber through a communication channel and flows out to a fuel tank. The fuel flow through the communication channel generates a differential pressure between inner control pressure and outer control pressure. Thus, an outer differential pressure immediately after an outer valve opening time can be set small, restraining an increase in the unburnt HC content of exhaust gas at low load, which could otherwise result from a high rising speed of an outer needle valve immediately after the outer valve opening time. An inner differential pressure immediately after an inner valve opening time can be set large, restraining an increase in the smoke content of exhaust gas, which could result from a low rising speed of an inner needle valve immediately after the inner valve opening time.

Fuel injection control device for internal combustion engine

Growing community of inventors

Kariya, Japan

Shigeo Nomura