Aftercooler - Air-to-Air Aftercooler
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| 图 1 | g02158315 |
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带箭头的虚线代表空气流向，而带箭头的实线代表冷却液流向。 (1) 空气滤清器 (2) 发动机 (3) 涡轮增压器压气机 (4) 涡轮增压器涡轮机 (5) 水泵 (6) 空对空后冷器 (7) 散热器 | |
空对空后冷器系统中没有冷却液流量。 该系统与水套水冷却系统相隔离。
新鲜空气通过空气滤清器 (1) 吸入涡轮增压器压气机 (3) 中。 空气得到压缩，并且空气由于压缩而变热。 压缩后的空气流过后冷器 (6) 的散热片，在散热片中，压缩空气由来自风扇的空气流量冷却。 经过冷却和压缩的空气密度变大，从而使发动机 (2) 能够燃烧更多的燃油，因此可提供更大的功率。 发动机的排气流过涡轮增压器涡轮机 (4)，为驱动涡轮增压器压气机提供能量。
在水套水冷却系统中，水泵 (5) 迫使冷却液经过发动机冷却液通道。 冷却液循环通过发动机，从而完成发动机与冷却液间的换热。 加热后的冷却液流过散热器 (7)。 来自风扇的空气流过后冷器及其周围，以冷却散热器中的冷却液。 冷却液通过水泵抽回。
Caterpillar Information System:
C27 and C32 Tier 4 Engines Engine Shutdown While Idling
2012/11/30 New Crankshaft for the C6.6 Engines {1202}
C27 PET GEN SET Electric Power Generation and C27 KNOCKDOWN K Petroleum Power Train Package Electronic Modular Control Panel 4 (EMCP 4) - EMCP 4.1 / 4.2 / 4.2B
C27 and C32 Tier 4 Engines Fuel Filter Is Restricted
C27 and C32 Engines for Caterpillar Built Machines Cooling System - Check
2010/09/14 New Turbochargers Are Now Used on Certain C18 Industrial Engines {1052, 1053}
C27 and C32 Tier 4 Engines Engine Overspeeds
C27 and C32 Tier 4 Engines Engine Cranks but Does Not Start
C27 PET GEN SET Electric Power Generation and C27 KNOCKDOWN K Petroleum Power Train Package Engine Air Cleaner Service Indicator - Inspect
C15 Generator Sets Engine Oil and Filter - Change
C27 and C32 Tier 4 Engines Crankcase Pressure Is High
C27 and C32 Tier 4 Engines Coolant Temperature Is High
Removal, Installation, and Conditioning of Idler Bearings and Track Roller Bearings {4159, 4159, 4180, 4180, 7551} Removal, Installation, and Conditioning of Idler Bearings and Track Roller Bearings {4159, 4159, 4180, 4180, 7551}
320E and 323E Excavators Fuel System Water Separator - Drain
3512C HD SR500 Generator Sets Generator Bearing - Inspect
C27 and C32 Tier 4 Engines ECM Software - Install
2010/06/04 A New Starting System for Certain C7 Engines That Are Used in RoadTec Pavers Is Available {1000}
2010/11/24 The Swing Bearing In the Bearing And Gear Group Is Improved on Certain 330D, 345C and 345D Excavators and 345C and 345D Mobile Hydraulic Power Units {7063}
3412C Generator Set Voltage Regulators
C7.1 Industrial Engine Combustion Head Group (ARD) - Remove and Install - Pilot Only System
C27 and C32 Tier 4 Engines Fuel Temperature Is High
C27 and C32 Tier 4 Engines Fuel Pressure Is High
C27 and C32 Tier 4 Engines Fuel Pressure Is Low
C27 and C32 Tier 4 Engines Inlet Air Is Restricted