Nissan Motor Company Limited

Nitto Boseki Co., Ltd.

Yutaka Tasaki

Hidekazu Takahashi

Takashi Mikami

Naoyuki Furuta

Shinta Yamamura

Tadanori Mizukami

Kyoji Fujiwara

Yoshiteru Yasuda

Yoshimasa Tanaka

Yoshio Utaka

A magnetic structure has a magnetocaloric material the temperature of which changes with application or removal of a magnetic field, and a high thermal conduction member which is in contact with the magnetocaloric material and has higher thermal conductivity than the magnetocaloric material. Further, this magnetic air-conditioning and heating device is provided with multiple of the aforementioned magnetic structures, a thermal switch which is arranged between magnetic structures and transmits or insulates heat, and a magnetic field varying unit which applies or removes a magnetic field to each of the magnetic structures. By providing in the magnetic structures a high thermal conduction member with higher thermal conductivity than the magnetocaloric material, some or all of the heat generated in the magnetocaloric material can be quickly conducted in the magnetic bodies.

Magnetic structure and magnetic air-conditioning and heating device using same

A magnetic air conditioner includes heat generation disks of a hollow shape each having a magneto-caloric material and a thermal switch, and magnetic field application disks of a hollow shape each having a magnetic field application unit that applies a magnetic field to the magneto-caloric material, the heat generation disks and the magnetic field application disks being alternately stacked. At least either of the heat generation disks and the magnetic field application disks is made to relatively rotate so as to transport heat in a direction intersecting the rotating direction. The magnetic air conditioner also includes an outer-rotor motor that causes at least one of the heat generation disks and the magnetic field application disks to rotate, and a clutch that transmits a driving force collectively to the plurality of heat generation disks or to the plurality of magnetic field application disks, or separately.

Magnetic air conditioner

[Problem to be solved] To reduce the fluctuation in the driving force. [Means to solve Problem] A magnetic cooling/heating apparatus comprising: a heat transfer unitA comprising a plurality of heat transfer devices--, . . . arranged in parallel at intervals, wherein the heat transfer device-comprises magnetic bodiesA-F with a magneto-caloric effect and heat-conductive partsA-G that transfer the heat of the magnetic bodiesA-F, both of which are alternately arranged; a magnetic unitA comprising a plurality of magnetsA,C, . . . that are arranged so as to face against each of the magnetic bodiesA-F of the heat transfer unitA and to selectively apply and remove the magnetic field to/from each of the magnetic bodiesA-F; and a motorthat moves at least one of the heat transfer unitA and the magnetic unitA facing each other, relative to each other in the direction in which the heat transfer devices--, . . . are arranged, wherein a magnetically-permeable heat-insulating partthat has the equivalent magnetic permeability to that of the magnetic bodiesA-F and blocks heat conduction is formed between the heat transfer devices--, . . . of the heat transfer unitA.

Magnetic heating/cooling apparatus

A magnetic body is provided to improve heat transport capability and heat transport efficiency. A magnetic body arranged plate has magnetic body units each including magnetic members. Low-temperature side and high-temperature side heat exchange units are disposed at ends of each magnetic body unit. Permanent magnets and heat conductive members are arranged on a magnet/heat conductive member arranged plate. When the magnetic body arranged plate and the magnet/heat conductive member arranged plate are moved relative to each other, the permanent magnets apply magnetism separately to the magnetic members of each magnetic body unit. The magnet/heat conductive member arranged plate creates a temperature difference and conducts heat in one direction between the magnetic members, the low-temperature side heat exchange unit, and the high-temperature side heat exchange unit.

Magnetic refrigerator utilizing a permanent magnet to create movement between plates comprising high and low temperature side heat exchangers

A magnetic heating and cooling device is provided that comprises a heat exchanger that includes a magnetic body having a magnetocaloric effect; a magnetic field applying and removing unit that selectively applies to or removes from the magnetic body a magnetic field; and a liquid refrigerant moving unit that reciprocates a liquid refrigerant from one end to the other end, or from the other end to the one end, of the heat exchanger to exchange heat with the magnetic body inside the heat exchanger. The magnetic body is constituted by a plurality of flat magnetic members. At least one flat magnetic member has at least one slit that opens in the direction perpendicular to the movement direction of the liquid refrigerant, and the open end of each slit forms a corner to increase heat exchange efficiency.

Magnetic heating and cooling device

To provide a sound absorbing structure having a superior sound absorbing characteristic and an external appearance of the sound absorbing structure which does not cause flicker or the like, by disposal, for example, in the front of an air chamber, a plurality of ribs (2a) are disposed on one surface of the sound absorbing board body (2), and a plurality of through-holes (3) are provided in basal portions (2b) between the ribs (2a) to form a porous structure. Concealing materials (5) are provided between the ribs (2a) of the sound absorbing board body to conceal the through-holes (3), respectively.

Sound absorbing body, sound absorbing board, and sound absorbing unit

An outer mounting rail at a side opposite to a sound source side and an inner mounting rail at the sound source side are fixed to a metal securing part secured to an attachment base portion projecting from a top portion of a sound insulation wall. An outer stationary rail fixed to a sound absorbing body is fixed to the outer mounting rail by a joint bar, and an inner stationary rail fixed to the sound absorbing body is fixed to the inner mounting rail.

Structure for mounting sound absorbing member on top portion of sound

Sound absorbing body, sound absorbing plate, and sound absorbing unit

Herein disclosed is an improved exhaust manifold for an internal combustion engine, which comprises an outer body of aluminium having a configuration corresponding to the exhaust manifold, and insulating layer of ceramic fiber disposed on the inner surface of the outer body for protecting the outer body from the heated exhaust gas, and a protecter incorporated with the insulating layer in a manner to maintain the disposition and configuration of the insulating layer.

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Yokohama, Japan

Yutaka Tasaki