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Piezoelectric fuel injector having temperature compensating unit

A technology of temperature compensation unit and fuel injector, which is applied in the directions of injection device, engine element, fuel injection device, etc., can solve the problems of world energy depletion, excess, waste of hydrocarbon fuel, etc.

Inactive Publication Date: 2013-11-27
ECOMOTORS INTL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most gasoline and diesel car engines are only 20-30% efficient, so that a large portion of hydrocarbon fuels is wasted, depleting the world's energy sources while producing excessive amounts of pollutants and greenhouse gases

Method used

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  • Piezoelectric fuel injector having temperature compensating unit
  • Piezoelectric fuel injector having temperature compensating unit
  • Piezoelectric fuel injector having temperature compensating unit

Examples

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Embodiment Construction

[0022] The following paragraphs will describe the present invention in detail through examples and with reference to the accompanying drawings. All preferred embodiments described in this specification should be considered as examples, not limitations of the present invention. The "present invention" in this specification refers to any embodiment of the invention described in this specification or its equivalent. Furthermore, reference in this specification to various features of the "present invention" does not mean that all claimed embodiments or methods must include the referenced features.

[0023] Before describing the invention in detail, it is useful to describe a few examples of environments in which the invention may be practiced. One such example is a vehicle powered by an internal combustion engine. figure 1 One such vehicle 50 is shown. A fuel source 51 is provided in the vehicle, and the fuel source 51 is connected to an engine 52 through a fuel pipeline 53 . ...

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Abstract

The present invention provides a fuel injector, comprising a housing having a scalable injector seat; a fuel injector pin disposed within the housing proximate to the injector seat such that the injector seat may be sealed and unsealed by displacing the fuel injector pin; a resilient element biasing the fuel injector pin in an unsealed direction; a piezoelectric actuator disposed within the housing proximal to the fuel injector pin configured to actuate to force the injector pin towards the injector seat to seal the injector seat; and a thermal compensating unit disposed within the housing proximal to the actuator and configured to compensate for thermal expansion or contraction of a component of the fuel injector.

Description

[0001] related application [0002] This application claims priority from U.S. Patent Application 12 / 817,136, filed June 16, 2010, which claims priority from U.S. Patent Application 12 / 503,764, filed July 15, 2009, which claims the Priority is given to US Provisional Patent Application 61 / 081,326, dated July 16, 2008, the contents of which are incorporated herein by reference in their entireties. technical field [0003] The present invention relates generally to fuel injection systems and, more particularly, to piezoelectrically actuated fuel injectors with heating and catalytic components for engines, particularly internal combustion engines. Background technique [0004] Much of the world's energy is consumed to drive internal combustion-based motor vehicles. Most gasoline and diesel car engines are only 20-30% efficient, so that a significant portion of hydrocarbon fuels is wasted, depleting the world's energy sources while producing excessive amounts of pollutants and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05B15/00F02M51/00
CPCF02M51/0603F02M2200/705
Inventor M·J·弗里克M·C·谢凯
Owner ECOMOTORS INTL