IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0435922
(1982-10-22)
|
우선권정보 |
DE-0002493 (1982-02-01) |
발명자
/ 주소 |
- Pfleger, Albert
- Klesel, Peter
|
출원인 / 주소 |
- Bayerische Motoren Werke Aktiengesellschaft
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
5 인용 특허 :
0 |
초록
▼
A cooling arrangement for a liquid-cooled internal combustion engine with combined seawater-fresh water cooling is disclosed. The arrangement comprises a first heat exchanger for seawater-fresh water exchange and a second heat exchanger for seawater-lubricating-oil heat exchange, and a housing withi
A cooling arrangement for a liquid-cooled internal combustion engine with combined seawater-fresh water cooling is disclosed. The arrangement comprises a first heat exchanger for seawater-fresh water exchange and a second heat exchanger for seawater-lubricating-oil heat exchange, and a housing within which the first and second heat exchangers are arranged. The housing includes an inlet duct, a short-circuit duct and a thermostat for fresh water. An additional thermostat and an exchange filter for the lubricating oil are provided adjacent to the first and second heat exchangers.
대표청구항
▼
1. A cooling arrangement for a liquid-cooled internal combustion engine with combined seawater-fresh water cooling, comprising a first heat exchanger means for seawater-fresh water heat exchange and a second heat exchanger means for seawater-lubricating oil heat exchange, one-piece housing means wit
1. A cooling arrangement for a liquid-cooled internal combustion engine with combined seawater-fresh water cooling, comprising a first heat exchanger means for seawater-fresh water heat exchange and a second heat exchanger means for seawater-lubricating oil heat exchange, one-piece housing means within which said first and second heat exchanger means are arranged to define a fresh water chamber about said first heat exchanger means and a lubricating oil chamber about said second heat exchanger means, wherein said first and second heat exchanger means are arranged behind one another in the flow direction of the seawater in said respective chambers of the one-piece housing means, said chambers being arranged opposite one another and separated by a partition having an opening through which said first and second heat exchanger means are connected, said one-piece housing means including an inlet duct for receiving seawater, an outlet duct for discharging seawater, a short-circuit duct in fluid communication with said fresh water chamber, and a fresh water thermostat for sensing temperature of fresh water in said short-circuit duct, wherein an additional thermostat and a lubricant exchange filter for filtering oil are fluidly connected to each other and said lubricating oil chamber and disposed adjacent to one of said first and second heat exchanger means to permit said lubricating oil to bypass said seawater-lubricating oil heat exchanger means, and wherein the fresh water thermostat is arranged in an additional housing chamber of said one-piece housing means that is essentially abreast of said second heat exchanger means with ducts for fresh water being provided from said first heat exchanger means and from said short-circuit duct to the fresh water thermostat in the area of said partition to permit said fresh water thermostat to bypass fresh water around said seawater-fresh water heat exchanger means. 2. A cooling arrangement according to claim 1, wherein lubricating oil ducts are provided between the second heat exchanger means and each of the thermostat and the exchanger filter for the lubricating oil, said lubricating oil ducts being arranged on the outside at the housing chamber of the second heat exchanger means and the additional housing chamber for the thermostat for fresh water, and wherein the thermostat and the exchange filter for the lubricating oil are arranged on the outside at the additional housing chamber for the thermostat for fresh water. 3. A cooling arrangement according to claim 2, wherein at least one of said lubricating oil ducts leads into the lower area of the housing chamber for the second heat exchanger means and has a course with a highest point at the level of the upper area of the housing chamber. 4. A cooling arrangement for a liquid-cooled internal combustion engine with combined seawater-fresh water cooling, comprising a first heat exchanger means for seawater-fresh water heat exchange and a second heat exchanger means for seawater-lubricating oil heat exchange, one-piece housing means within which said first and second heat exchanger means are arranged, wherein said first and second heat exchanger means are arranged behind one another in the flow direction of the seawater in respective chambers of the one-piece housing means, said chambers being arranged opposite one another and separated by a partition having an opening through which said first and second heat exchanger means are connected, said one-piece housing means including an inlet duct, a short-circuit duct and a thermostat for fresh water, wherein an additional thermostat and an exchange filter for the lubricating oil are fluidly connected to each other and to said seawater-lubricating oil heat exchanger, provided adjacent to said first and second heat exchanger means to permit the lubricating oil to bypass said seawater-lubricating heat exchanger means, and a storage tank means connected with the inlet duct, the short-circuit duct and the housing chamber for the first heat exchanger means by a narrow venting and volume-balancing opening, the storage tank means having inlet and outlet openings for connection with said venting opening connection and with an inlet and outlet area of the cooling circulation system of the engine, respectively, and wherein said fresh water thermostat is located adjacent to a main portion of said housing means and bypasses fresh water around said seawater-fresh water heat exchanger means from said chamber via said short-circuit duct and said fresh water thermostat to the inlet area of said cooling circulation system of the engine. 5. A cooling arrangement according to claim 4, wherein the thermostat for fresh water is arranged in an additional housing chamber of said one-piece housing means, and wherein the inlet duct, short-circuit duct and the housing chamber of the first heat exchanger means have a direction connection for a connecting line to the outlet of a cooling jacket of the engine, and the additional housing chamber of the thermostat has a connection for a connecting line to the suction area of the cooling circulation of the engine. 6. A cooling arrangement according to claim 2, wherein a lubricating-oil filter head and the exchanger filter are flanged to the outside of said housing means, said lubricating-oil filter head containing the thermostat for the lubricating oil. 7. A cooling system for a liquid-cooled internal combustion engine having both seawater and fresh water cooling, said cooling system comprising: seawater-fresh water heat exchanger means for exchanging heat between seawater and fresh water; seawater-lubricating oil heat exchanger means for exchanging heat between seawater and lubricating oil; one-piece housing means for supporting in tandem said heat exchanger means so as to permit serial passage of seawater therethrough and for defining respective fresh water and lubricating oil chambers about said seawater-fresh water and seawater-lubricating oil heat exchanger means, said housing means further including inlet and outlet ducts for respectively receiving and discharging seawater, and a short-circuit duct for enabling passage of a portion of fresh water from said fresh water chamber; fresh water thermostat means disposed in said short-circuit duct for sensing temperature of the fresh water and bypassing fresh water around said seawater-fresh water exchanger means, and a lubricating oil filter unit disposed adjacent to one of said heat exchanger means, said unit including oil filter means for filtering oil, means for passing oil through said filter means, and lubricating oil thermostat means fluidly connected to said oil filter means for sensing temperature of said oil and bypassing oil around said seawater-lubricating oil heat exchanger means. 8. A cooling system as recited in claim 7, wherein said housing means includes flange means for fastening at least one of said fresh water thermostat means, lubricating oil thermostat means, and said heat exchanger means, said housing means further including a partition for dividing and separating said fresh water and lubricating oil chambers and for providing a bearing against which said heat exchangers engage for supporting openings therein against said housing means. 9. A cooling system as recited in claim 8, wherein said heat exchanger means are formed as slide-in parts with outside mounting flanges and connections, and inside cylindrical connecting and support pieces which are arranged and sealed concentrically within one another and in said opening of said partition.
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