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Two-stage heat exchanger with interstage bypass

A bypass line, sensitive sensor technology, used in machine/engine, engine lubrication, lubricant temperature control, etc.

Inactive Publication Date: 2010-11-24
SULLAIR CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the valves associated with this arrangement are at the downstream end of the bypass line and are only suitable for reducing the amount of fluid flowing through the second stage heat exchanger

Method used

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  • Two-stage heat exchanger with interstage bypass
  • Two-stage heat exchanger with interstage bypass
  • Two-stage heat exchanger with interstage bypass

Examples

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Embodiment Construction

[0011] System 20 includes compressor 22 that receives air from line 21 , compresses the air, and delivers the air toward compressed air outlet 23 . An oil separation vessel 25 is located at the outlet of the compressor 22 and includes the separator element 17 . Separators may be known. The separated oil flows through line 125 towards oil cooler 27 . Downstream of the oil cooler 27 the oil is returned to the compressor 22 via line 19 . Although the invention is exemplified in terms of an air compressor, the oil cooler 27 of the invention may also be used in conjunction with other compressors for other applications, and for cooling applications other than compressor oil coolers.

[0012] The oil cooler 27 has at least two stages and includes a first stage 24 and a downstream second stage 32 . Oil from the compressor 22 enters an inlet header 31 in the first stage 24 and then flows through a flow channel (shown schematically here as tube 26 ) to a discharge pressure chamber 33...

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PUM

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Abstract

A fluid cooler comprises a first stage fluid cooler and a downstream second stage fluid cooler. A flow line connects the first and second stages. A valve senses a condition of the fluid in the flow line, and to bypass the second stage fluid cooler if it is determined that additional cooling is not necessary. An air compressor incorporating the cooler is also claimed as is a method of operating a fluid cooler.

Description

technical field [0001] The present application relates to a two-stage oil cooler in which an interstage bypass directs oil to bypass the second stage when additional cooling is not required. Background technique [0002] Compressors typically require oil, which heats up during compressor operation. Therefore, oil is sent from the compressor through the oil cooler so that the oil is periodically cooled and sent back to the compressor. One application of compressors is in air compressors. Typically, oil coolers are sized to handle high ambient temperature conditions where the oil needles get very hot. When the same oil cooler is used at a lower ambient temperature, the oil is not as hot and the cooling capacity in the oil cooler may be too high. [0003] Compressors can often have valves that limit compressor suction to reduce its capacity, which can also result in oil temperatures below preferred operating temperatures. [0004] Compressors can also be associated with the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B39/06
CPCF01M5/007F01M5/002
Inventor B·M·泰利什A·麦戴维R·A·库恩蒂斯
Owner SULLAIR CORP