Instant cooling system with refrigerant storage

• US 5,094,086 A
• Filed: 09/25/1990
• Issued: 03/10/1992
• Est. Priority Date: 09/25/1990
• Status: Expired due to Fees

• Current Assignee: NORM Pacific Automation Corporation
• Original Assignee: NORM Pacific Automation Corporation
• Inventors: Shyu, Jia-Ming
• Primary Examiner(s): Tapolcai, William E.
• Application Number:
  US07/587,982
• Time in Patent Office: 532 Days
• Field of Search: 62/509, 62/218, 236/75
• US Class Current: 62/218
• CPC Class Codes: F25B 1/00 Compression machines, plants or systems with non-reversible cycle F25B3/00, F25B5/00, F25B6/00, F25B7/00, F25B9/00 take precedence
• CPC Class Codes: F25B 2600/111 of condenser fans
• CPC Class Codes: F25B 2600/112 of evaporator fans
• CPC Class Codes: F25B 41/315 actuated by floats
• CPC Class Codes: Y02B 30/70 Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Abstract

A heat-pump type cooling system is disclosed which can provide cooling immediately before the compressor begins to rotate. The system stores liquid refrigerant condensed from compressed high pressure vapor in a liquid container, and releases it, through a control valve, to an evaporator and a temporary vapor receiver, enabling the cooling power to be controlled independently of the rotation of the compressor, in accordance with the operation of the control valve and the evaporator.

Claims

1. An air-conditioning cooling system comprising:

a condenser and an evaporator connected in series along a refrigerant path,

refrigerant arranged and constructed to circulate through said refrigerant path,

a liquid refrigerant storage container disposed between said condenser and said evaporator,

a control value disposed between said liquid refrigerant storage container and said evaporator,

a vapor receiver disposed between said evaporator and a compressor,

a controller arranged and constructed to continue compressor operation, after said control valve has stopped releasing refrigerant to said evaporator, to draw refrigerant fluid from said vapor receiver, propel said fluid through said condenser and into said liquid container, whereby, after said compressor has stopped, said control valve will release refrigerant from said liquid container to said evaporator for providing a cooling effect before said compressor restarts.

2. An air-conditioning cooling system according to claim 1, further comprising a fluid level sensor associated with said liquid refrigerant storage container, said fluid level sensor arranged and constructed to sense an amount of stored refrigerant and generate signals utilized by said controller in controlling said compressor and said condenser to maintain a correct level of stored refrigerant in said liquid refrigerant storage container.

3. An air-conditioning cooling system according to claim 1, further comprising a check valve connected in series between said compressor and said condenser.