公开(公告)号：US20130086909A1

公开(公告)日：2013-04-11

申请号：US13632625

申请日：2012-10-01

Applicant: ROLLS-ROYCE PLC

Inventor： Yi WANG ,  Paul David REES ,  David Waymont ,  Neil John DAVIES ,  Jonathan Edmund HOLT

IPC: F01N5/02 ,  F02C7/141

CPC classification number: F02C9/36 ,  F02C7/14 ,  F05D2260/213 ,  Y02T50/675

Abstract: A system for cooling one or more circulating flows of oil, the system including: one or more fuel-oil heat exchangers, the fuel-oil heat exchangers using fuel for an engine to cool at least one of one or more circulating flows of oil; and a fuel return line in flow communication with a point downstream of the fuel-oil heat exchangers and a point upstream of the fuel-oil heat exchangers, wherein the fuel return line is arranged so that at least a portion of the fuel exiting the fuel-oil heat exchangers may be diverted to the point upstream of the fuel-oil heat exchangers. Furthermore, a system for cooling a circulating flow of oil may include one or more fuel-oil heat exchangers and one or more air-fuel heat exchangers, the fuel-oil heat exchangers using fuel to cool the circulating flow of oil and the air-fuel heat exchangers using air to cool the fuel.

Abstract translation: 一种用于冷却一个或多个循环油流的系统，所述系统包括：一个或多个燃料油热交换器，所述燃料油热交换器使用用于发动机的燃料来冷却一个或多个循环油流中的至少一个; 以及与所述燃料油热交换器的下游点和所述燃料油热交换器上游的点流动连通的燃料回流管路，其中所述燃料返回管线被布置成使得离开所述燃料的所述燃料的至少一部分 - 燃油热交换器可以转移到燃料 - 油热交换器上游的点。 此外，用于冷却循环油的系统可以包括一个或多个燃料油热交换器和一个或多个空气 - 燃料热交换器，所述燃料油热交换器使用燃料来冷却油的循环流和空气 - 使用空气的燃料热交换器来冷却燃料。