US4408675A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dual outlet engine exhaust system
Assignee: Motors Liquidation Co
•
Filing: 1981-05-22
•
Granted: 1983-10-11
•
Expires: 2001-05-22
Abstract
Abstract A dual outlet engine exhaust system having a pair of resonators which are joined as a rigid assembly by a resonator manifold which also maintains divided exhaust gas flow to the resonators.
Inventors
- 👤 Robert C. Keller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:29
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
202 words
In a dual outlet engine exhaust system for an internal combustion engine mounted in a vehicle, an exhaust pipe extending from the engine, a pair of branch pipes connected to said exhaust pipe and extending rearwardly longitudinally and centrally of the vehicle in substantially parallel relationship, a pair of resonators each having an inlet and an outlet, said resonators being arranged end-to-end at their inlet end and transverse of the vehicle, mounting means mounting the outlet end of each resonator on the vehicle, a tail pipe connected to each outlet, and resonator manifold means including a gas separator located directly between the inlet ends of said resonators for both rigidly mechanically interconnecting said resonators while separately gaseously directly connecting their inlets to the respective branch pipes whereby said resonators form a rigid assembly and together with said tail pipes are mounted directly on the vehicle by only said mounting means at the outlet ends of said resonators and whereby the exhaust gases are divided by said branch pipes with such divided exhaust gases thereafter maintained separate from each other by said gas separator while passing through said resonators and thence separately out through said tail pipes to create a distinct exhaust sound.
Claim 2
Dependent Claim
202 words
In a dual outlet engine exhaust system for an internal combustion engine mounted in a vehicle, an exhaust pipe extending from the engine, a pair of branch pipes connected to said exhaust pipe and extending rearwardly longitudinally and centrally of the vehicle in substantially parallel relationship, a pair of resonators each having an inlet and an outlet, said resonators being arranged end-to-end at their inlet end and transverse of the vehicle, mounting means mounting the outlet end of each resonator on the vehicle, a tail pipe connected to each outlet, and resonator manifold means including a gas separator located directly between the inlet ends of said resonators for both rigidly mechanically interconnecting said resonators while separately gaseously directly connecting their inlets to the respective branch pipes whereby said resonators form a rigid assembly and together with said tail pipes are mounted directly on the vehicle by only said mounting means at the outlet ends of said resonators and whereby the exhaust gases are divided by said branch pipes with such divided exhaust gases thereafter maintained separate from each other by said gas separator while passing through said resonators and thence separately out through said tail pipes to create a distinct exhaust sound.
References Cited (Backward Citations)
US1280386A
Cited
US1708002A
Cited
US2841348A
Cited
US2940249A
Cited
US3070187A
Cited
US3189122A
Cited
US3685615A
Cited
DE2910370A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-10-10 | 1987-04-11 | 1987-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-10-10 | 1991-04-11 | 1991-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-10-10 | 1995-04-11 | 1995-10-11 | $7700.00 | Window Closed / Lapsed |