# US 10,865,688 B2 · Exhaust system integrity tester

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- Number: US 10,865,688 B2
- Document ID: US10865688B2
- Status: Granted
- Kind: B2
- Application number: 16/040,063
- Filed: 2018-07-19
- Published: 2018-11-15
- Granted: 2020-12-15
- Earliest claimed: 2014-03-27
- Applicants: Dwight Eric Story
- Inventors: Dwight Eric Story
- Web page: https://patentgrep.com/patent/US10865688B2

## CPC

- F01N 11/00: Monitoring or diagnostic devices for exhaust-gas treatment apparatus
- G01M 3/025: {Details with respect to the testing of engines or engine parts}
- G01M 15/106: {using pressure sensors}
- Y02T 10/40: Engine management systems
- F01N: GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES (arrangements in connection with gas exhaust of propulsion units in vehicles B60K13/00; combustion-air intake silencers specially adapted for, or arranged on, internal-combustion engines F02M35/00; protecting against, or damping, noise in general G10K11/16)
- G01M: TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

A system and method are provided for testing and verification of an exhaust system. The system and method introduce a low pressure flow of gas into the exhaust system through an adaptor that fits into or about an exhaust pipe of the exhaust system. The low pressure gas can then be used, in the absence of engine noise, heat, and/or dangerous exhaust gases, to determine if one or more leaks exist in the exhaust system.

## Claims

### Claim 1

An adaptor for testing the integrity of an exhaust system, comprising:
a body, the body having a frustoconical side wall, a first end wall and a second end wall, the frustoconical sidewall extending between the first end wall and the second end wall;
a first conduit extending through the first end wall and second end wall of the body;
a source of pressurized air attached to a second end of the first conduit;
a second conduit extending through the first end wall and second end wall of the body; and
a pressure sensor attached to the second conduit.

### Claim 2 (depends on 1)

The adaptor of claim 1, wherein the pressure sensor is a transducer.

### Claim 3 (depends on 1)

The adaptor of claim 1, wherein the frustoconical side wall continuously tapers inwardly between the second end wall and the first end wall.

### Claim 4 (depends on 1)

The adaptor of claim 1, wherein a first end of the first conduit extends from the first end wall of the body and the second end of the first conduit extends from the second end wall of the body.

### Claim 5 (depends on 1)

The adaptor of claim 1, wherein a first end of the second conduit extends through the first end wall of the body and a second end of the second conduit is at the second end wall of the body.

### Claim 6 (depends on 1)

The adaptor of claim 1, further comprising a pressure relief valve attached to the body.

### Claim 7 (depends on 6)

The adapter of claim 6, wherein the pressure relief valve is attached to the first conduit.

### Claim 8 (depends on 1)

The adaptor of claim 1, wherein the second end wall in larger than the first end wall.

### Claim 9 (depends on 8)

The adaptor of claim 8, wherein the frustoconical side wall continuously tapers inwardly between the second end wall and the first end wall.