Fuel injector isolation
First Claim
1. A fuel injector assembly having a first injector end, a body portion extending from said first injector end and a bracket being connected with said body portion;
- said fuel injector assembly comprising;
a sleeve being spaced from said body portion; and
an insulator being interposed said body portion and said sleeve, said insulator being bonded to said sleeve.
1 Assignment
0 Petitions
Accused Products
Abstract
Fuel injectors used in present day applications are normally requiring high pressure injection, short injection times and split or modified injection. Thus, this type of injection inherently produces an excess of noise. The present fuel injector assembly (22) overcomes the above deficiencies by controlling the noise emitted from a fuel injector (33). For example, as an actuation system (27) operates the fuel injector (33) the noise created by the opening and closing of the fuel injector (33) is absorbed within an isolator (34). As the fuel injector assembly (22) is installed, the fuel injector assembly (22) is positioned within a bore (26) with the fuel injector assembly being in a second position (29). And, a plurality of fasteners (28) are tightened to a predetermined value moving the fuel injector assembly (22) into a first position (24). Additionally, the fuel injector assembly (22) remains seated with respect to a cylinder (14) as the isolation material of the isolator (34) is biased positioning the fuel injector assembly (22) into the first position (24).
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Citations
16 Claims
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1. A fuel injector assembly having a first injector end, a body portion extending from said first injector end and a bracket being connected with said body portion;
- said fuel injector assembly comprising;
a sleeve being spaced from said body portion; and an insulator being interposed said body portion and said sleeve, said insulator being bonded to said sleeve. - View Dependent Claims (2, 3, 4, 5)
- said fuel injector assembly comprising;
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6. A method of isolating noise from a fuel injector, said fuel injector defining a first injector end, a body portion extending from the first injector end and a bracket being attached to said body portion;
- comprising the steps of;
positioning a sleeve in a spaced relationship about said body portion, said positioning said sleeve about said body portion including said spaced relationship defining a preestablished thickness of said insulator, said preestablished thickness being in a range of about 0.50 inches (12.2 mm); and positioning an insulator within said spaced relationship. - View Dependent Claims (7, 8, 9, 10)
- comprising the steps of;
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11. An engine (10) having a block (12) and a cylinder head (14) being attached to said block (12), said block (12) defining a cylinder (14) therein and said cylinder head (14) defining a bore (26) having a first bore (70) therein, a second bore (74) communicating between said first bore (70) and said cylinder (14) and a third bore (76) defining a sealing surface (78);
- said engine comprising;
a fuel injector (33) being positioned in said first bore (70), said fuel injector (22) including a first injector end (40) having a body portion (44) extending therefrom and a bracket (52) being attached to said body portion (44); a sleeve (32) being spaced from said body portion (44) a preestablished distance; and an isolator (34) being interposed said body portion (44) and said sleeve (32). - View Dependent Claims (12, 13, 14, 15, 16)
- said engine comprising;
Specification