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Common rail fuel system for a multi-cylinder bank combustion engine with independently controlled fuel supply to each bank

A fuel supply system, fuel system technology, applied in the direction of fuel injection control, charging system, engine components, etc., can solve problems such as rise and leakage

Inactive Publication Date: 2013-03-20
CATERPILLAR MOTOREN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, due to vibrations and the necessary connection points, the risk of failures such as leaks can rise at these connection points or along the high pressure pipes

Method used

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  • Common rail fuel system for a multi-cylinder bank combustion engine with independently controlled fuel supply to each bank
  • Common rail fuel system for a multi-cylinder bank combustion engine with independently controlled fuel supply to each bank
  • Common rail fuel system for a multi-cylinder bank combustion engine with independently controlled fuel supply to each bank

Examples

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Embodiment Construction

[0028] refer to figure 1 , an exemplary embodiment of the fuel supply system 100 according to the present invention is described in more detail. Such a fuel supply system 100 may be used for medium to large size internal combustion engines 110 . In particular, the internal combustion engine 110 may be sized and configured such that it is used, for example, in a boat, larger ship, or power plant. An internal combustion engine of this size may have a power output in excess of 500 kW / cylinder with 12 to 20 cylinders.

[0029] The fuel supply system 100 may be used in an internal combustion engine 110 having at least two separate cylinder banks 300 , 400 . Each cylinder bank 300 , 400 may include a plurality of cylinders 310 , 410 . Each cylinder 310 , 410 may be equipped with at least one fuel injector 320 , 420 . Each of these fuel injectors 320 , 420 may be connected to an associated common fuel rail 120 , 130 .

[0030] As mentioned above, each cylinder bank 300 , 400 of ...

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Abstract

The present disclosure refers to fuel supply system (100) configured to be used at an internal combustion engine (110), said internal combustion engine (110) including at least two separate common fuel rails (120, 130) without any high pressure fuel connection line between the common fuel rails (120, 130). The fuel supply system (100) may comprise at least one first high pressure pump (140) configured to supply fuel at high pressure to a first common fuel rail (120). A first control module (160) may be configured to control an operation of the at least one first high pressure pump (140). At least one second high pressure pump (150) may be configured to supply fuel at high pressure to at least one second common fuel rail (130). At least one second control module (170) may be configured to control an operation of the at least one second high pressure pump (150). The first and second control modules (160, 170) may be configured to communicate with each other, and one of the first and second control modules (160, 170) may be configured to operate as a master control module (170), and all other first and second control modules (160, 170) may be configured to operate as slave control modules (170).

Description

technical field [0001] The present invention generally relates to a fuel supply system for an internal combustion engine which may include at least two banks of cylinders and a common fuel rail associated with each cylinder bank. [0002] Furthermore, the invention relates to a multi-bank internal combustion engine comprising a first bank of cylinders and at least one second bank of cylinders. Each cylinder of the first and second banks may include at least one fuel injector. The first common fuel rail may be configured to supply high pressure fuel to each fuel injector of the first bank of cylinders. At least one second common fuel rail may be configured to supply high pressure fuel to each fuel injector of the at least one second bank of cylinders. [0003] Furthermore, the invention may relate to an electronic control module (ECM) configured as one or more independent common rails (common rails) controlling the internal combustion engine, which may not be connected by hig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D41/00F02D41/26F02D41/38F02M63/02
CPCF02D41/266F02D2041/3881F02D41/3845F02D41/0082F02D2200/0602F02M63/0295F02D41/00F02D41/26F02D41/38F02M63/02
Inventor S·哈斯B·里彻
Owner CATERPILLAR MOTOREN
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