Bitzer Kuehlmaschinenbau Gmbh

Bitzer Kühlmaschinenbau Gmbh

Xianghong Wang

Ronald J Duppert

Kurt William Robert Bessel

James William Bush

Carl F Stephens

Johnathan P Roof

Kenneth D Heusler

Christopher Allen Wyker

James G Cullen, Jr

A scroll compressor that includes a housing and scroll compressor bodies disposed in the housing. A motor is disposed within the housing and operably connected to a drive shaft for driving one of the scroll compressor bodies. The drive shaft is rotationally supported at one end by a crankcase which includes a bearing housing and a bearing. The crankcase includes a plurality of openings or gas passages passing through the crankcase, as well as a plurality of generally cylindrical sections positioned respectively between adjacent openings. The cylindrical sections define contact regions which can engage an inner periphery of the housing when the crankcase is mounted therein.

Press-fit bearing housing with non-cylindrical diameter

A scroll compressor includes first and second scroll bodies having respective bases and respective scroll ribs that project from the respective bases such that the scroll ribs mutually engage. The second scroll body is movable relative to the first scroll body for compressing fluid. A drive shaft has a longitudinal axis and an eccentric drive pin configured to engage a drive hub on the second scroll body. A counterweight has a hub portion, and a perimeter portion positioned radially outward from the hub portion. A radial axis divides the counterweight into a first and second regions. The mass of the hub portion in the first region being roughly equal to the mass of the hub portion in the second region, and the mass in the perimeter portion being distributed between the first and second regions such that the center of mass of the counterweight is located along the radial axis.

Scroll compressor counterweight with axially distributed mass

A scroll compressor that includes a housing and scroll compressor bodies disposed in the housing. The scroll bodies include a non-orbiting scroll body (also referred to as 'fixed') and a moveable body, where scroll bodies have respective bases and respective scroll ribs that project from the respective bases. The scroll ribs are configured to mutually engage, and the movable scroll body orbits relative to the fixed scroll body for compressing fluid. A pilot ring engages a perimeter surface of the fixed scroll body to limit movement of the fixed scroll body in the radial direction. A simplified holding plate prevents rotation between the pilot ring and the fixed scroll body.

Holding plate for piloted scroll compressor

A compressor that includes a housing with a plurality of attached shell sections which define an internal volume of the compressor. In the housing, compressor bodies have respective surfaces which mutually engage. The compressor includes a drive unit disposed in the housing. The drive unit has a motor to provide a mechanical output on a drive shaft. The drive shaft drives one of the compressor bodies to facilitate relative movement for the compression of fluid. In an embodiment, the plurality of shell sections includes a base plate having an annular rib, which locates a tubular central shell section of the plurality of attached shell sections.

Compressor baseplate with stiffening ribs for increased oil volume and rail mounting without spacers

Press-fit bearing housing with large gas passages

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Syracuse, NY, United States of America

Xianghong Wang