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Marine Heat Exchangers

Marine Heat Exchangers

Product catalog summary

Introduction
This document provides an overview of marine engine cooling systems, focusing on water-cooled marine petrol and diesel engines. It discusses the limitations of direct cooling and keel cooling, and highlights the advantages of heat exchanger cooling.

Marine Engine Cooling Systems
There are three primary methods for cooling marine engines: direct cooling, heat exchanger cooling, and keel cooling. Direct cooling with seawater is discouraged due to potential engine damage. Keel cooling is suitable for small boats but has limitations due to external pipework. Heat exchanger cooling is the most effective method, as it isolates seawater in components designed to withstand corrosion.

Bowman Heat Exchangers
Bowman heat exchangers are high-quality products with advanced materials and features. The tube stack is fully floating to minimize thermal stresses and can be easily removed for cleaning. The design ensures the system is self-venting and prevents aeration of the engine water circuit.

Installation and Configuration
In marine engines, components in the seawater circuit are typically arranged in series. The gearbox-oil and engine-oil coolers are on the suction side of the seawater pump, while the heat exchanger and any seawater-cooled exhaust manifolds are on the discharge side. For turbocharged engines, the charge air cooler should receive seawater first to achieve the lowest possible air temperature.

Exhaust Manifold and Additional Features
A water-jacketed exhaust manifold is necessary to reduce engine-room air temperature. Bowman offers a combined water-jacketed exhaust manifold with a heat exchanger and header tank, suitable for small series-produced engines. This configuration allows for keel cooling by omitting certain components.

Conversion of Automotive Engines
When converting automotive engines for marine use, the existing centrifugal pump should be retained for the freshwater circuit, and an additional pump should be installed for the seawater circuit. The seawater pipe bore should be selected to maintain appropriate flow velocities.

Recommendations and Best Practices
Ensure the seawater outlet from the heat exchanger is from the upper connection to keep the tube stack full of water. The gearbox cooler size depends on the transmission type but is usually smaller than the engine-oil cooler. Freshwater-cooled oil coolers can be used but require larger sizes due to higher water temperatures.

Conclusion
Bowman provides comprehensive solutions for marine engine cooling, emphasizing the importance of using high-quality materials and proper installation techniques to ensure efficient and reliable engine operation.

Product Specifications
The document provides technical specifications for various Bowman standard heat exchangers and charge air coolers, suitable for different engine types and capacities. It includes product specifications, dimensions, and contact information for global distributors.

Specifications
The document lists multiple models of heat exchangers and charge air coolers, detailing their weight, dimensions, sea water pipe size, engine water port bore, and compatibility with engine power (kW and HP). For example, the EC 80-1069-1 model weighs 1.9 kg, measures 190 x 100 x 100 mm, and is suitable for engines up to 60 kW (80 HP).

Product Categories
The products are categorized based on their application, such as standard heat exchangers and charge air coolers. Each category includes a range of models with varying specifications to accommodate different engine sizes and power outputs.

Key Features
The document highlights the compatibility of certain models with specific engine series, such as the Cummins 4B/BT/BTA and 6B/BT series. It also mentions combined heat exchangers, header tanks, and water-cooled exhaust manifolds for British Leyland and Land Rover diesel engines.

Global Distributors
A comprehensive list of global distributors is provided, including contact details for companies in various countries. Each entry includes the company name, address, telephone and fax numbers, contact person, and email address.

Conclusion
This document serves as a detailed guide for selecting the appropriate Bowman heat exchanger or charge air cooler based on engine specifications and provides a network of distributors for purchasing and support.

Technical Specifications for 675/675T Engine Series
The document provides technical specifications and configurations for water-cooled exhaust manifolds, heat exchangers, and oil coolers for the 675/675T engine series. It includes detailed listings of compatible engine models from various manufacturers.

Key Components

Heat Exchanger: Facilitates the transfer of heat between fluids, crucial for engine cooling.
Oil Cooler: Cools the engine oil to maintain optimal operating temperatures.
Charge Cooler: Cools the intake air to improve engine efficiency and performance.

Engine Compatibility
The document lists specific models and configurations for each manufacturer, indicating the appropriate heat exchanger and oil cooler models.

Special Instructions

Units indicated in blue are designed for keel-cooled engines and do not include tube stacks.
For engines not listed, standard oil coolers and heat exchangers are available on pages 10-13.
Specific instructions are provided for using certain components with Daimler Benz air inlet manifolds and in fresh-water circuits.

Recommendations
Ensure compatibility by selecting the correct model numbers for specific engine types. Follow special instructions for installation and use, particularly for engines requiring specific configurations or additional components.

Catalog excerpts

Refroidisseurs d'huile OlkOhler Echangegrs de Chaleur Auspuflsammelrohre Collecteurs d'echappement Warmeaustauscher Refroidisseurs pour Air Ladelufckuhler

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Marine Engines Bowman Standard Oil Coolers Bowman Standard Heat Exchangers Bowman Charge Air Coolers Bowman Marine Stockists British Leyland Rover General Motors Perkins & Peugeot Mitsubishi/New Holland/ Genesis Heat Exchanger Selection Charts E. J. Bowman (Birmingham) Ltd Chester Street, Birmingham B6 4AP, England Tel: +44 (0) 121 359 5401 Fax: +44 (0) 121 359 7495 E-mail: [email protected] Web site: www.ejbowman.co.uk

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Bowman Marine Engine Cooling There are three methods employed for water-cooled marine petrol and diesel engines: direct, heat exchanger and keel cooling. Direct cooling of the cylinders and heads by seawater is unsatisfactory, because the engine – which was probably originally designed for radiator cooling – will run too cold and the sea-water will eventually ruin the cylinder block and heads. Keel cooling is suitable for small boats operating in shallow weedy water, but the need for pipework external to the hull is a severe limitation. Heat exchanger cooling is the most common method, the seawater...

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Bowman Le Refroidissement des Moteurs Marins Le refroidissement des moteurs marins – à essence ou à diesel – étudiés pour être refroidis par eau s’effectue de trois manières: par circulation directe, par échangeur de chaleur ou par la quille. Le refroidissement des cylindres et culasses par circulation directe d’eau de mer est déconseillé du fait qu’il tend à refroidir excessivement les moteurs prévus pour refroidissement par radiateur, qui marchent alors à une température trop basse, et que l’eau de mer finira par attaquer et endommager le bloc-cylindres et la culasse. Le refroidissement par...

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Bowman Kühlung von Schiffsmotoren Zur Kühlung von wassergekühlten Schiffsmotoren werden drei Methoden angewendet: 1. direkte Kühlung 2. Wärmetauscher- und 3. Kielkühlung. muß eine kleine Beipassöffnung im Thermostaten vorgesehen sein, damit jederzeit etwas Wasser durch das Sammelrohr zirkulieren kann. Eine interessante E. J. Bowman Entwicklung kombiniert ein wassergekühltes Auspuffsammelrohr sowie den Motorwasserwärmetauscher und das Ausdehnungsgefäß; zu einem Kombikühler. Diese Anordnung eignet sich besonders für kleine, serienmäßig hergestellte Motoren. Bei diesem System wird das Sammelrohr...

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Bowman La refrigeración de los Motores Marinos Hay tres métodos que se emplean para los motores marinos En los motores marinos es necesario que haya un colector de gasolina y diesel refrigerados por agua: el directo, el de de escape con camisa de agua para reducir la temperatura intercambiador de calor y el de refrigeración por la quilla. del aire de la cámera de máquinas y la del tubo de escape. La refrigeración directa de los cilindros y culatas Si el colector de escape está en el circuito del agua de mar empleando el aqua del mar es insatisfactoria, pues el motor, debe instalarse con la entrada...

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Bowman SYSTEM 1 A typical arrangement showing the position of the heat exchanger, sea water cooled exhaust manifold and oil coolers on a marine engine. Disposition sur un moteur marin indiquant la position de l’échangeur de chaleur et du collecteur d’échappement à refroidissement par eau de mer et des refroidisseurs d’huile. Seawater Eau de mer Seewasser Agua de mar Oil Huile Öl Aceite Freshwater Eau douce Süsswasser Agua dulce Diese typische Einrichtung zeigt die Stellung des Wärmeaustauschers, des seewassergekühlten Auspuffsammelrohrs und der Ölkühler bei einem Schiffsmotor. Configuración típica,...

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Bowman A Perkins 4-108 marine engine fitted with a combined heat exchanger, header tank and water cooled exhaust manifold type PE180-3483. Moteur marin PERKINS 4-108 équipé d’un ensemble échangeur de chaleur, nourrice et collecteur d’échappement refroidi par eau type PE-180-3483. Ein PERKINS-4-108-Schiffs motor mit einer Spezialbaugruppe aus Wärmeaustauscher, Wasserkasten und wassergekühltem Auspuffsammelrohr Typ PE180-3483. Un motor marino PERKINS 4-108 con una combinación de intercambiador de calor, tanque elevado y colector de escape refrigerado por a gua, tipo PE180-3483. A ZF Gearbox fitted...

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Bowman (Below) A typical OIL COOLER showing the method of assembly. (Ci-dessous) Vue d’un refroidisseur d’huile montrant le mode d’assemblage. (Unten) Typischer Ölkühler mit Darstellung der Montage. (Abajo) Un enfriador de aceite típico mostrando el método de montaje. A MERCEDES BENZ OM314 marine engine fitted with a combined heat exchanger, header tank and water cooled exhaust manifold type MB380-3180. Moteur marin MERCEDES BENZ OM314 équipé d’un échangeur de chaleur, d’une nourrice et d’un collecteur d’échappement refroidi par eau combinés type MB3803180. Ein MERCEDES BENZ-Schiffsmotor OM314...

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Bowman A PERKINS 6-3544 marine engine fitted with combined heat exchanger, header tank and water cooled exhaust manifold type PE580-3676. Moteur marin PERKINS 6-3544 équipé d’un ensemble échangeur de chaleur, nourrice et collecteur d’échappement refroidi par eau type PE580-3676. Ein PERKINS-6-3544-Schiffsmotor mit einer Spezialbaugruppe aus Wärmeaustauscher, Wasserkasten und wassergekühltem Auspuffsammelrohr Typ PE580-3676. Un motor marino PERKINS 6-3544 con una combinación de intercambiador de calor tanque elevado y colector de escape refridgerado por agua, tipo PE580-3676. ______________________________________________________________________________________________________...

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General Bowman catalog (EN, FR, DE, ES)
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