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US 7,740,005 B2Granted
Diesel fuel injector removal tool
OwnerIra Hinesinventor
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OwnerIra Hinesinventor
Estimating the term…
An improved tool for removal of fuel injectors from the cylinder head of a diesel engine includes a male threaded pulling shaft having a milled top, with a female threaded connector at the bottom for releasable connection to the male threads at the top of a typical fuel injector. A sleeve fits over the threaded pulling shaft so that the base of the sleeve rests against the cylinder head, and the top of the pulling shaft extends through the top of the sleeve. A drive nut engages the threads of the pulling shaft and can be threaded down the pulling shaft until the drive nut contacts the top of the sleeve, preferably adjacent an interposed washer. An open end wrench is then used to turn the drive nut against the sleeve, thereby lifting the threaded pulling shaft relative to the sleeve and removing the injector from the cylinder head. The injector can then be unscrewed from the female threaded connector.
A tool for removal of a fuel injector having male threads from a cylinder head of a diesel engine, said tool comprising:
Dependencies are inferred from the claim text.