The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 20, 1987
Filed:
Sep. 08, 1986
George D Elliott, Huntsville, AL (US);
Other;
Abstract
An injector (10) for delivering fuel directly into an engine combustion chamber (11) in response to compression within the combustion chamber (11). The injector (10) has a housing (14) with an injector rod (22) slidably mounted within housing (14). Secured to the injector rod (22) is a primary piston (24), a metering spool (25), and a secondary piston (32). The metering spool (25) is located within a metering chamber (26) having a bypass chamber (50) in which is located two series of electrodes (60 and 62) which are connected to an electrical system which sequentially provides an electrical signal to the connector (56) as dictated by the needs of the engine. As the electrical signal is supplied to connector (56), an electro-rheological fluid (64) contained within the metering chamber (26) is converted from a liquid to a substantially solid condition, thereby limiting the travel of the metering spool (25) and the secondary piston (32). Thus, a predetermined, measured amount of fuel is delivered from the supply chamber (36) into the combustion chamber (11) of the engine. The device (10) is provided with a glow plug (68) for firing the mixture within the combustion chamber (11).