Sharp Kabushiki Kaisha Corporation

Syozo Tanaka

Yoshiharu Shinobu

Masaki Eguchi

Akira Yoshida

Akira Takushima

Kenji Takai

Akiro Takushima

In a regenerator for use in a Stirling cycle based system, a plurality of ribs are formed on a surface of a resin film by applying screen printing thereto using photo-curing ink. The resin film is then wound up to produce three separate regenerator cores of identical size. These three regenerator cores are joined together in the direction of the axes thereof. The ribs on the surface of the resin film are formed at regular intervals and parallel to the axes of the cores.

Regenerator for a stirling cycle based system

A fan device for a refrigerator includes a hollow wall having a front wall portion and a rear wall portion for dividing an interior space of the refrigerator into a heat exchanging zone and a first portion of a storage zone. An air suction opening is formed in the rear wall portion for allowing an air cooled in the heat exchanging zone to be induced into the hollow wall. A fan is disposed in alignment with the air suction opening so as to induce the cooled air. A plurality of forward air outlet slots are formed in the front wall portion for allowing the air in the hollow wall to be blown to the first portion of the storage zone. A rearward air outlet is formed in the rear wall portion for allowing the air in the hollow wall to be blown to a second portion of the storage zone through a duct communicating the rearward air outlet to the second portion.

Fan device for refrigerator

A cross flow type fan system is provided with a tongue having a first surface positioned adjacent the outlet of the fan system in a direction generally parallel to the direction of travel of a majority of the air exiting the system. The tongue further has a second surface of a given width positioned at an angle relative to the first surface and a third surface having a given width with the first and third surfaces being positioned generally perpendicular to one another. Due to the shape of the tongue, static pressure of the discharge air flow can increase at both ends of the discharge opening. Pressure characteristics of the discharge air flow is therefore improved to obtain better stability. Ends of the tongue can be positioned further from an outward circumferential surface of the fan than the middle section of the tongue due to differences in cross-sectional shape. The middle section of the tongue can also have a point of protrusion in cross section at a lower position while the ends of the tongue have a generally flat face in cross section at the lower position. This arrangement will improve overall stability of discharge air, especially in the low air volume range.

Cross flow fan system

A refrigerator which includes cooling chamber including a refrigerating chamber and a freezing chamber, an axial flow fan for circulating air within the cooling chamber, a heat exchanger for cooling the air circulated by the axial flow fan, a suction side space so formed as to guide the air cooled by the heat exchanger from the heat-exchanger to the axial flow fan, and a sound absorbing material for absorbing noises produced in the suction side space and the cooling chamber so as not to leak outside the refrigerator, with the suction side space and the cooling chamber respectively having resonance dimensions for resonation at specific frequency regions. The suction side space is set, in its resonance dimension, to the frequency region at which the sound absorbing material can absorb the sound in an efficient manner.

Refrigerator

In a cross flow type fan according to the present invention having a tongue section provided between the rear guide surrounding the cross flow fan, the back side and bottom side thereof and the front side of the fan, a projecting section (flow changing board) is provided on the rear guider, the shape of the tongue section is caused to be different at the middle section and at both ends of the axial direction of the fan, the boundary section of the suction opening and the discharge opening of the air is divided on the outward circumferential surface of the fan by the partition wall having continuous through holes, and the air flow direction control blade being curved toward the discharge side.

Growing community of inventors

Nara, Japan

Syozo Tanaka