Cooling water circuit for stationary engine

A technology of engine and cooling water, applied in the direction of engine cooling, engine components, machines/engines, etc.
CN102016258AInactive Publication Date: 2011-04-13YANMAR CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
YANMAR CO LTD
Publication Date
2011-04-13
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention has a waste heat recovery device (37) that supplies engine waste heat by way of engine coolant; a radiator (18) that dissipates engine waste heat by way of engine coolant; an exhaust gas heat exchanger (33) that supplies engine waste heat from exhaust gas to engine coolant; and a coolant pump (32) that causes engine coolant to circulate. Furthermore, the constitution is suchthat pressure drop equipment (34) is arranged upstream with respect to a coolant pump suction region (32b); a restrictor is arranged in a communication passage (50) between a coolant pump suction region and a region (20) vented to atmosphere; a location upstream with respect to the pressure drop equipment is made to communicate with the region vented to atmosphere; and the region vented to atmosphere is made capable of being kept in communication with atmosphere.
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Description

technical field

[0001] The present invention relates to a cooling water circuit of a stationary engine with a heat dissipation recuperator adopted in a combined heat and power system or a GHP (gas heat pump). Background technique

[0002] Conventionally, as a cooling water circuit of a stationary engine having a heat radiation recovery device, a configuration in which a cooling water circuit suction part and an air opening part are communicated in an engine cooling water circuit having a heat radiation recovery device has been disclosed (for example, refer to Patent Document 1).

[0003] That is, the cooling water circuit of the engine described in Patent Document 1 includes a heat dissipation recovery device in which a radiator and an outdoor heat exchanger are in contact with each other. In addition, the cooling water pump suction side is connected to the water storage tank, and the cooling water pump suction part communicates with the atmosphere through a vent hole provid...

Claims

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