Coolant compressor

US20200386216A1Inactive Publication Date: 2020-12-10NIDEC GLOBAL APPLIANCE GERMANY GMBH
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Patent Information

Authority / Receiving Office
US · United States
Current Assignee / Owner
NIDEC GLOBAL APPLIANCE GERMANY GMBH
Publication Date
2020-12-10
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a coolant compressor comprising an electric drive unit, a cylinder housing (1), a crankshaft (3) which can be driven by the electric drive unit, and a piston (2) that can be driven by the crankshaft (3) and is guided in a working volume of the cylinder housing (1) for cyclically compressing a coolant which can be conveyed via a suction valve into the working volume, said suction valve comprising a suction opening (7) and a valve closure element (8), preferably a valve spring, which closes the suction opening (7) in cycles. The aim of the invention is to ensure a continuous opening movement of the suction valve during the suction cycle. According to the invention, this is achieved by providing an actuation device (14; 15, 23) which is designed to open the valve closure element (8) in cycles.
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Description

FIELD OF THE INVENTION

[0001] The invention relates to a coolant compressor having an electrical drive unit, a cylinder housing, a crankshaft drivable by the electrical drive unit and a piston drivable by the crankshaft, guided in a working volume of the cylinder housing for cyclical compression of a coolant, which can be conveyed into the working volume via a suction valve comprising a suction opening and a valve-closing element, preferably a valve spring cyclically closing the suction opening.

[0002] Generally, a cylinder head arrangement is mounted on the cylinder housing, the cylinder head arrangement comprising a suction opening and a valve-closing element that cyclically closes the suction opening. As a rule, the cylinder head arrangement also comprises a valve plate, which has the suction opening and a pressure opening, as well as a cylinder head cover, which forms a sealed cavity together with the valve plate. The valve-closing element of the suction valve is generally arranged ...

Claims

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