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US 9,279,423 B2Granted
Scroll type fluid machine with notches on a motor housing
AssigneeHitachi Industrial Equipment Systems Co., Ltd.
InventorsShumpei Yamazaki, Yoshiyuki Kanemoto
Life of this patent
Estimating the term…
Abstract
A plurality of notches or holes is formed on a motor housing or compressor casing. This permits assembling of the auxiliary crankshaft to the auxiliary crank bearing even after the motor housing and the compressor casing are fastened together. Hence, the assembly can be performed in sequential steps.
Claims9
A scroll type fluid machine comprising:
- a motor housing accommodating a motor for driving a compressor;
- a compressor casing accommodating the compressor;
- a fixed scroll disposed in the compressor casing;
- an orbiting scroll driven via a driving shaft of the motor and defining a compression chamber as positioned in opposed relation to the fixed scroll;
- and
- a plurality of auxiliary crankshafts for preventing the autorotation of the orbiting scroll,
- wherein the plurality of auxiliary crankshafts are retained by a plurality of first auxiliary crank bearings mounted to the compressor casing and a plurality of second auxiliary crank bearings mounted to the orbiting scroll, respectively,
- the motor has a stator, and
- a plurality of notches or hole structures are formed on the motor housing at places between the stator and the first auxiliary crank bearings.
6 more elements
A scroll type fluid machine comprising:
- a motor housing accommodating a motor for driving a compressor;
- a compressor casing accommodating the compressor;
- a fixed scroll disposed in the compressor casing;
- an orbiting scroll driven via a driving shaft of the motor and defining a compression chamber as positioned in opposed relation to the fixed scroll;
- and
- a plurality of auxiliary crankshafts for preventing the autorotation of the orbiting scroll,
- wherein the plurality of auxiliary crankshafts are retained by a plurality of first auxiliary crank bearings mounted to the compressor casing and a plurality of second auxiliary crank bearings mounted to the orbiting scroll, respectively,
- a plurality of notches or hole structures are formed on the motor housing or the compressor casing at places between the first auxiliary crank bearings and a stator disposed in the motor.
5 more elements
Dependencies are inferred from the claim text.