Liquid-cooled reciprocating engines, more particularly marine engines专利检索-冷却剂回路核能专利检索查询-专利查询网

Liquid-cooled reciprocating engines, more particularly marine engines

阅读：424发布：2022-11-19

专利汇可以提供Liquid-cooled reciprocating engines, more particularly marine engines专利检索，专利查询，专利分析的服务。并且A liquid cooled reciprocating engine, particularly of the high power diesel marine type. The engine head and the engine body are formed of differing materials, and the head material is less prone to corrosion than the body. The cooling system comprises a first closed circuit with heat exchanger for cooling the body and a second open circuit for cooling the head thereof thereby permitting the use of a more corrosive coolant for the head than for the body.，下面是Liquid-cooled reciprocating engines, more particularly marine engines专利的具体信息内容。

权利要求

1. A liquid-cooled reciprocating engine having a head; and a body connected to the head; the head and the body respectively being formed of differing metals; cooling chambers being provided in said head and body; the body being formed of metal more prone to corrosion than the metal forming the head; and wherein a liquid cooling system is provided for the engine and said system comprises; at least a first circuit and a second circuit with means for receiving, respectively, a first coolant in said first circuit and a second coolant, different from said first coolant, in said second circuit, the first circuit being closed and connected in fluid communication with the cooling chamBer of said body of the engine, said first circuit including a heat exchanger, and the second circuit being open and connected in fluid communication with the cooling chamber of the said head of the engine; the arrangement being such that the second coolant for said second open circuit is more corrosive than the first coolant for said first closed circuit; said heat exchanger being provided to permit cooling of the coolant of the first closed circuit.

2. A liquid-cooled reciprocating engine according to claim 1, of the diesel and marine type.

3. An engine according to claim 1, wherein the closed circuit is provided to contain fresh water and the second open cooling circuit is provided to receive sea water.

4. An engine according to claim 1, wherein the open circuit is completely independent of the closed circuit and its heat exchanger.

5. An engine according to claim 1, wherein the open circuit is so constructed that at least some of the coolant entering such open circuit passes through the heat exchanger of the closed circuit thereby to cool the coolant circulating in such closed circuit.

6. An engine according to claim 5, wherein the open circuit is so constructed that only some of the coolant for such circuit may flow through the heat exchanger incorporated in the closed circuit.

7. An engine according to claim 1 wherein a flow control valve is incorporated in the open circuit.

8. An engine according to claim 1, wherein a filter is provided at an inlet of the open circuit.

9. An engine according to claim 1, including ancillary apparatus to be heated or cooled and wherein provision is made whereby at least some of any coolant which has passed through the open cooling circuit is routed, after leaving the cooling chambers of the engine head, to said ancillary apparatus.

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