RECIPROCATING REFRIGERATION COMPRESSOR AND METHOD FOR MOUNTING A RECIPROCATING REFRIGERATION COMPRESSOR

Title:

RECIPROCATING REFRIGERATION COMPRESSOR AND METHOD FOR MOUNTING A RECIPROCATING REFRIGERATION COMPRESSOR

Document Type and Number:

WIPO Patent Application WO/2015/139105

Kind Code:

A3

Abstract:

The compressor comprises: a crankcase (B) carrying a cylinder (11) and a bearing hub (50) which lodges a crankshaft (60); a valve plate (40) closing one end of the cylinder (11); a piston (20) reciprocating in the cylinder (11) and driven by the rotation of the crankshaft (60); an electric motor' (M) having a stator (70) affixed to the crankcase (B) and provided with winding grooves (71) and teeth (72), each tooth carrying a respective shoe (72a), and a rotor (80) affixed to the crankshaft (60) and carrying magnet segments (81). stator (70), the rotor (80) and the crankshaft (60) are mounted in'an indexed way, in order to present, in relation to one another, a relative positioning which produces, upon the stop of the electric motor (M) and with the crankshaft (60) and rotor (80) being in the upper dead point condition of the piston (20), a cogging torque capable of taking the piston away from the upper dead point.

Inventors:

THIESSEN MÁRCIO ROBERTO (BR)
SILVA DIOGO LÔNDERO DA (BR)
KALLUF FLÁVIO JORGE HADDAD (BR)

Application Number:

PCT/BR2015/050029

Publication Date:

January 14, 2016

Filing Date:

March 16, 2015

Export Citation:

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Assignee:

WHIRLPOOL SA (BR)

International Classes:

F04B35/04

Domestic Patent References:

WO2012091339A2

2012-07-05

Foreign References:

EP1598554A2	2005-11-23
US20080136280A1	2008-06-12
GB1461824A	1977-01-19
US20120070322A1	2012-03-22

Other References: