Denso Corporation

Nippondenso Co., Ltd.

Kyodo Yushi Co., Ltd.

Suehiro Okazaki

Etsuo Hasegawa

Takayuki Morita

Toshiya Nagasawa

Yoshiharu Kajikawa

Shozo Ikejima

Mitsuhiro Kakizaki

Koji Sakakibara

Koji Hisaka

Shogo Sumi

Kyosuke Ikuma

Toshihiro Yamamoto

The invention provides a grease composition capable of smoothly operating the lubricated parts even under wide-ranging temperature conditions, and at the same time, exhibiting excellent noise reducing effect on the lubricated parts. The grease composition containing a base oil and a thickener is provided, wherein the base oil includes at least one first base oil selected from the group consisting of poly-&#x3b1;-olefins and ethylene-&#x3b1;-olefin oligomers and at least one second base oil selected from the group consisting of polybutene, polyisobutylene, polymethacrylate, and styrene based copolymers, with the first base oil being contained in an amount of 65 mass % or more and the second base oil being contained in an amount of 1 mass % or more and less than 35 mass % based on the total mass of the base oil, the base oil having a kinematic viscosity of 350 to 1400 mm/s at 40&#xb0; C., the first base oil having a kinematic viscosity of 300 to 1200 mm/s at 40&#xb0; C., and the second base oil having a kinematic viscosity of 1500 to 200,000 mm/s at 40&#xb0; C.

Noise reducing grease composition

The air conditioning case () includes: a right and a left case body () made of resin; and a partitioning plate () made of metal, and the partitioning plate () is a partitioning portion for partitioning the face blowout opening portion () and the defroster blowout opening portion () which are formed into one opening portion by the right and the left case body (). Accordingly, compared with the partitioning portion formed integrally with the right and the left case body, no dividing face is formed at the center, and rigidity can be enhanced. Due to the above structure, it is difficult for the partitioning portion to be deformed, and the partitioning portion seldom interferes with the blowout mode door ().

Air conditioner

A drain case 4 is disposed between the bottom wall of a unit case and the lower end of refrigerant passage pipes 15 of a stacked type refrigerant evaporator. The drain case 4 is W-shape in cross section, and comprising two pieces of outside inclined walls 32 contacting the side ends of two pieces of tank parts 16 and 17 formed at the lower end side of the refrigerant passage pipes 15, a chevron type protruded wall 33 contacting a recessed part 28 formed at the bottom end of the part between the adjacent two pieces of tank parts 16 and 17, and inside inclined walls 34 having a drain hole 36. In this arrangement, the condensed water flows from the side ends of the two pieces of tank parts 16 and 17 and the part between the two pieces of tank part 16 and 17 into the lower ends thereof reaches the two pieces of outside inclined walls 32 and protruded wall 33 of the drain case 4 before reaching the bottom end of the two pieces of tank parts 16 and 17, and then is efficiently drained therefrom. Localized corrosion that may occur at the lower end part of refrigerant passage pipes is prevented by not allowing the condensed water to stay at the lower end side of the refrigerant passage pipes.

Cooling unit and drain case for air conditioners

Growing community of inventors

Kariya, Japan

Suehiro Okazaki