Mitsubishi Heavy Industries Limited

Mitsubishi Heavy Industries Thermal Systems, Ltd.

Keita Kitaguchi

Makoto Takeuchi

Takahide Ito

Takuma Yamashita

Hirofumi Hirata

Hirohumi Hirata

Masayuki Ishikawa

Hiroshi Yamazaki

Kazuhide Watanabe

Goshi Iketaka

Noriaki Arashi

Hideo Saho

Provided is a co-rotating scroll compressor comprising a synchronous drive mechanism that can achieve a long life. The compressor comprises a driving side scroll member () driven to rotate about a driving side rotation axis CL, a driven side scroll member () driven to rotate about a driven side rotation axis CL, a hollowed drive shaft () that is connected to the driving side scroll member (), and driven by a motor () to rotate, and a driven shaft () that is disposed inside the drive shaft (), and has one end connected to the drive shaft () via a first flexible coupling () and the other end connected to the driven side scroll member () via a second flexible coupling ().

Co-rotating scroll compressor and assembly method therefor

A scroll compressor includes a drive bush disposed in one end portion in an axial direction of a main shaft, and configured to be eccentrically rotated in accordance with rotation of the main shaft, a pair of angular bearings arranged back-to-back, and respectively clearance-fitted to an outside of the drive bush, a compression unit that has a boss portion which protrudes from an end plate of a movable scroll and in which the angular bearings are interference-fitted to an inner peripheral surface of the boss portion, and a preload application unit configured to apply a preload to the angular bearings in a direction in which the angular bearings are configured to move toward each other.

Scroll compressor and method for producing same

A co-rotating scroll compressor includes a driving-side scroll member (), a driven-side scroll member (), a pin ring mechanism (), a driving-side bearing () that rotatably supports the driving-side scroll member (), and a driven-side bearing () that rotatably supports the driven-side scroll member (). A center of gravity of at least one of the driving shaft (), the driving-side scroll member (), and the driven-side scroll member () is shifted from rotation centers (CL, CL) by a predetermined distance. The predetermined distance is set so that a total bearing load obtained by centrifugal force and fluid compression that is 5% of a dynamic load rating of the driving-side bearing () and the driven-side bearing () or more is generated.

Co-rotating scroll compressor and method for designing the same

The present invention provides a co-rotating scroll compressor that can inhibit leakage of lubricant supplied to a synchronous drive mechanism. A co-rotating scroll compressor includes a drive-side plateplaced between a driving scroll memberand a motorat a predetermined distance from the driving scroll memberin a direction of a drive-side rotation axis CL. The drive-side plateincludes a shaft portionfixed to a driving shaftof the motorand a fixing portionfixed to an outer periphery of the driving scroll member, and a synchronous drive mechanism made up of a needle bearingand a pinis placed between the drive-side plateand driving scroll member

Co-rotating scroll compressor

An electric compressor motor housing is provided with: a motor housing main body (), the interior of which is a cylindrical space for internally equipping a motor, and in which a plurality of refrigerant passages are formed around the cylindrical space, in the direction of the motor axis; an inverter accommodating portion () provided in an upper portion of the outer periphery of the motor housing main body (); compressor attachment feet () provided in a plurality of locations in upper and lower portions of the outer periphery of the motor housing main body (); and a refrigerant intake port () provided on a side surface toward the rear end of the motor housing main body (); wherein one or more lines of ribs () are provided on the outer peripheral side surface of the motor housing main body (), protruding outward and extending in the vertical direction.

Electric compressor motor housing, and vehicle-mounted electric compressor employing same

To provide a scroll fluid machine that can improve reliability in abrasion resistance of a power transmission mechanism including a pin member and a ring member. The machine includes a driving scroll member (), a driven scroll member (), and a power transmission mechanism () that transmits power to synchronously rotate both scroll members () and allow the scroll members to revolve and orbit relative to each other. The power transmission mechanism () includes a pin () attached to the driven scroll member (), a ring body () provided in the driving scroll member () and having an inner circumference in contact with an outer circumference of the pin (), and a circular groove () housing the ring body () and having an inner circumference in contact with an outer circumference of the ring body (). Of surface contact pressure in a contact portion between the outer circumference of the pin () and the inner circumference of the ring body (), and surface contact pressure in a contact portion between the outer circumference of the ring body () and the inner circumference of the circular groove (), the contact portion having higher surface contact pressure has a larger frictional torque.

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Tokyo, Japan

Keita Kitaguchi