Noise reducing bracket for a fuel injection system
AssigneeCaterpillar Inc.
InventorsAlan R. Stockner, Mike Youakim
Life of this patent
Estimating the term…
Abstract
A noise reducing fuel injection system includes an engine having a head with an injector bore. A fuel injector is suspended in the injector bore via a noise reducing mounting bracket. The mounting bracket has a clamping portion that clamps to the fuel injector, a support that is attached to the engine and an arm portion extending between the clamping portion and the support. The fuel injector is allowed to slide a slight distance in and out of the injector bore when the engine is running by either making the arm portions slightly flexible, by including resilient members between the support and the engine, or both.
Claims19
A noise reducing fuel injection system comprising:
- an engine having a head with a first injector bore;
- a mounting bracket having a first clamping portion separated from a support by a first arm portion, and said support being attached to said head of said engine;
- a first fuel injector;
- said first clamping portion being clamped to said first fuel injector in a position such that said first fuel injector is suspended in said first injector bore and capable of sliding a slight distance in and out of said first injector bore when said engine is running.
A noise reducing fuel injection system comprising:
- an engine having a head with a first injector bore;
- a mounting bracket having a first clamping portion separated from a support by a first arm portion, and said support being attached to said head of said engine;
- a first fuel injector;
- said first clamping portion being clamped to said first fuel injector in a position such that said first fuel injector is suspended in said first injector bore and capable of sliding a slight distance in and out of said first injector bore when said engine is running
- a fluid rail with a supply pipe attached to said first fuel injector with said first clamping portion;
- said mounting bracket being attached to said fluid rail;
- and said fluid rail being attached to said head of said engine, but being isolated from said head by at least one resilient member.
A noise reducing fuel injection system comprising:
- an engine having a head with a first injector bore;
- a mounting bracket having a first clamping portion separated from a support by a first arm portion, and said support being attached to said head of said engine;
- a first fuel injector;
- said first clamping portion being clamped to said first fuel injector in a position such that said first fuel injector is suspended in said first injector bore and capable of sliding a slight distance in and out of said first injector bore when said engine is running;
- said head has a second injector bore;
- said mounting bracket has a second clamping portion separated from said support by a second arm portion;
- said second clamping portion being clamped to said second fuel injector in a position such that said second fuel injector is suspended in said second injector bore and capable of sliding a slight distance in and out of said second injector bore when said engine is running.
A fuel injector mounting bracket comprising:
- a support;
- a first clamping portion sized to be clamped to a first fuel injector;
- a first arm with one end attached to said support and an other end attached to said first clamping portion;
- a second clamping portion sized to be clamped to a second fuel injector;
- a second arm with one end attached to said support on an opposite side from said first arm, and an other end attached to said second clamping portion;
- wherein said first clamping portion is sized to surround said first fuel injector and includes a first supply pipe connector;
- and
- said second clamping portion is sized to surround said second fuel injector and includes a second supply pipe connector.
Dependencies are inferred from the claim text.