公开(公告)号：US08820272B2

公开(公告)日：2014-09-02

申请号：US13691127

申请日：2012-11-30

Applicant: Caterpillar Inc.

Inventor： Neil Alan Terry ,  James Carl Durand ,  Joseph Lee Kennedy

IPC: F01P1/08 ,  F01P11/20 ,  F02N19/10 ,  F01P7/14

CPC classification number: F01P11/20 ,  F01P7/16 ,  F01P7/165 ,  F01P2007/146 ,  F01P2011/205 ,  F01P2060/08 ,  F02N19/10

Abstract: A cooling system for an engine includes a pump driven by the engine and configured to circulate coolant through the engine. The cooling system also includes a heat exchanger configured to receive coolant from the engine and to reduce a temperature of the coolant. The cooling system further includes a thermostat fluidly connected to the engine and the heat exchanger. The thermostat is configured to selectively direct coolant from the engine to the heat exchanger when a temperature of the coolant is greater than a temperature threshold of the thermostat. The thermostat is also configured to substantially block coolant from passing to the heat exchanger when the temperature of the coolant is less than or equal to the temperature threshold. The cooling system also includes a valve fluidly connected to the engine and the heat exchanger, and connected in parallel with the thermostat. The valve is configured to direct a portion of the coolant exiting the engine to the heat exchanger during a first operating condition. During the first operating condition, a pressure of the coolant exiting the engine is greater than a pressure threshold of the valve.

Abstract translation: 用于发动机的冷却系统包括由发动机驱动并构造成使冷却剂循环通过发动机的泵。 冷却系统还包括被配置为从发动机接收冷却剂并且降低冷却剂的温度的热交换器。 冷却系统还包括与发动机和热交换器流体连接的恒温器。 恒温器构造成当冷却剂的温度大于恒温器的温度阈值时，将冷却剂从发动机选择性地引导到热交换器。 恒温器还构造成当冷却剂的温度小于或等于温度阈值时，基本上阻止冷却剂通过热交换器。 冷却系统还包括流体连接到发动机和热交换器并与恒温器并联连接的阀。 阀被构造成在第一操作条件期间将从发动机排出的冷却剂的一部分引导到热交换器。 在第一操作条件下，离开发动机的冷却剂的压力大于阀的压力阈值。

公开(公告)号：US20140150738A1

公开(公告)日：2014-06-05

申请号：US13691127

申请日：2012-11-30

Applicant: CATERPILLAR INC.

Inventor： Neil Alan Terry ,  James Carl Durand ,  Joseph Lee Kennedy

IPC: F01P7/16

CPC classification number: F01P11/20 ,  F01P7/16 ,  F01P7/165 ,  F01P2007/146 ,  F01P2011/205 ,  F01P2060/08 ,  F02N19/10

Abstract: A cooling system for an engine includes a pump driven by the engine and configured to circulate coolant through the engine. The cooling system also includes a heat exchanger configured to receive coolant from the engine and to reduce a temperature of the coolant. The cooling system further includes a thermostat fluidly connected to the engine and the heat exchanger. The thermostat is configured to selectively direct coolant from the engine to the heat exchanger when a temperature of the coolant is greater than a temperature threshold of the thermostat. The thermostat is also configured to substantially block coolant from passing to the heat exchanger when the temperature of the coolant is less than or equal to the temperature threshold. The cooling system also includes a valve fluidly connected to the engine and the heat exchanger, and connected in parallel with the thermostat. The valve is configured to direct a portion of the coolant exiting the engine to the heat exchanger during a first operating condition. During the first operating condition, a pressure of the coolant exiting the engine is greater than a pressure threshold of the valve.

Abstract translation: 用于发动机的冷却系统包括由发动机驱动并构造成使冷却剂循环通过发动机的泵。 冷却系统还包括被配置为从发动机接收冷却剂并且降低冷却剂的温度的热交换器。 冷却系统还包括与发动机和热交换器流体连接的恒温器。 恒温器构造成当冷却剂的温度大于恒温器的温度阈值时，将冷却剂从发动机选择性地引导到热交换器。 恒温器还构造成当冷却剂的温度小于或等于温度阈值时，基本上阻止冷却剂通过热交换器。 冷却系统还包括流体连接到发动机和热交换器并与恒温器并联连接的阀。 阀被构造成在第一操作条件期间将从发动机排出的冷却剂的一部分引导到热交换器。 在第一操作条件下，离开发动机的冷却剂的压力大于阀的压力阈值。