GB2204639A - Combustion engine exhaust silencer - Google Patents

Combustion engine exhaust silencer Download PDF

Info

Publication number
GB2204639A
GB2204639A GB08711117A GB8711117A GB2204639A GB 2204639 A GB2204639 A GB 2204639A GB 08711117 A GB08711117 A GB 08711117A GB 8711117 A GB8711117 A GB 8711117A GB 2204639 A GB2204639 A GB 2204639A
Authority
GB
United Kingdom
Prior art keywords
turbine
combustion engine
fans
rota
engine exhaust
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB08711117A
Other versions
GB8711117D0 (en
Inventor
George Fisher
Frank Douglas Callaway
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB08711117A priority Critical patent/GB2204639A/en
Publication of GB8711117D0 publication Critical patent/GB8711117D0/en
Publication of GB2204639A publication Critical patent/GB2204639A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/16—Silencing apparatus characterised by method of silencing by using movable parts
    • F01N1/18—Silencing apparatus characterised by method of silencing by using movable parts having rotary movement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2290/00—Movable parts or members in exhaust systems for other than for control purposes
    • F01N2290/02—Movable parts or members in exhaust systems for other than for control purposes with continuous rotary movement
    • F01N2290/04—Movable parts or members in exhaust systems for other than for control purposes with continuous rotary movement driven by exhaust gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/14—Plurality of outlet tubes, e.g. in parallel or with different length
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/16—Plurality of inlet tubes, e.g. discharging into different chambers

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supercharger (AREA)

Abstract

A silencer body 12 contains a rotor 20 with a turbine 17 and fans 18 between an inlet 11 and outlets 15. The body may contain a plurality of rotors (Fig. 3). <IMAGE>

Description

COMBINED SILENCER AND EXHAUST GAS EXTRACTOR This invention relates to a combined silencer and exhaust gas extractor, for use with piston driven combustion engines.
Silencers have fixed baffle plates, use a series of holes in the exhaust pipe, or use acoustic material inside the silencer main body tube to absorb noise.
Silencers are made to reduce the level of exhaust noise, but in doing this, stifle the flow of gas.
According to the present invention, entering the main silencer body by the inlet tube, the exhaust gas drives a silencing turbine, which, in turn drives the exhaust extraction fans, which, because they are mounted on the same rota tube and shaft, revolve together.
A specific embodiment of the invention will now be described, by way of example, with reference to the accompanying drawings in which:- Figure 1 shows a general arrangement of the combined silencer and exhaust gas extractor, with labelled parts.
Figure 2 shows a section of the main silencer body removed to show the silencing turbine and the exhaust gas extraction fans in situ.
Referring to the drawing, Figure 1, the combined silencer and exhaust gas extractor comprises:11. Exhaust inlet tube. 12. Main silencer body.
13. Inlet end plate. 14. Outlet end plate.
15. Outlet tubes. 16. Rota shaft.
17. Silencing turbine. 18. Exhaust gas extractor fans.
19. Rota shaft bearings. 20. Turbine and fan mounting rota tube.
21. Shaft bearing gaskets.
The exhaust gases enter via the exhaust inlet tube 11 hitting the turbine 17.
This not only has a silencing effect, but also drives the turbine and fan mounting rota tube 20, on which are mounted the extraction fans 18. The rota tube 20 is coupled to the rota shaft 16 which turns in the bearings 19, which in turn are fitted on the end plates 13 and 14.
Figure 3 shows that a number of combinations can be made to cover all sizes and types of piston driven combustion engine.
The one here is a twin rota, with a turbine and three fans on each rota.
There does not appear to be any limit (within reasonable engineering practice) to the number of rotas or fans which can be used on any rota.

Claims (8)

1. The turbine has a silencing effect.
2. The turbine in Claim 1 produces drive for the extraction fans.
3. The extractor fans stated in Claim 2 smooth the flow of exhaust gases whilst extracting them.
From information in Claim 3 this action enhances the breathing of the piston driven combustion engine, because more of burnt gases of the last exploded charge is drawn from the cylinder. This means the next charge is more pure giving a cleaner burn.
5. From Claim II this reduces air pollution by virtue of the cleaner burn.
6. From Claim II this gives a higher power to fuel ratio.
7. A more rapid acceleration can be obtained due to the effect of Claim 6.
8. A higher speed for the same fuel consumption and or more miles for less fuel, and or less fuel used per number of hours for stationary engines from Claim 6.
GB08711117A 1987-05-11 1987-05-11 Combustion engine exhaust silencer Withdrawn GB2204639A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08711117A GB2204639A (en) 1987-05-11 1987-05-11 Combustion engine exhaust silencer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08711117A GB2204639A (en) 1987-05-11 1987-05-11 Combustion engine exhaust silencer

Publications (2)

Publication Number Publication Date
GB8711117D0 GB8711117D0 (en) 1987-06-17
GB2204639A true GB2204639A (en) 1988-11-16

Family

ID=10617148

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08711117A Withdrawn GB2204639A (en) 1987-05-11 1987-05-11 Combustion engine exhaust silencer

Country Status (1)

Country Link
GB (1) GB2204639A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2224540A (en) * 1988-11-02 1990-05-09 George Fisher I.c. engine exhaust silencer
IT201900017228A1 (en) * 2019-09-25 2021-03-25 Paolo Fresi Noise abatement system for internal combustion engines

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB187492A (en) * 1921-11-28 1922-10-26 Ivor Jones Improvements in apparatus for utilizing and silencing the exhaust of internal combustion engines
GB271319A (en) * 1926-12-18 1927-05-26 Charles Henry Lines Improvements in silencers for use with internal combustion engines
GB303581A (en) * 1927-10-13 1929-01-10 Joseph Frederick William Danby Improvements in or relating to silencers for the exhaust of internal combustion engines
GB305904A (en) * 1928-07-12 1929-02-14 William Henry Standen A silencing chamber for the exhaust of internal combustion engines
GB325326A (en) * 1928-12-12 1930-02-20 Rolla Eastwood Improvements in silencers for internal combustion engines
GB341742A (en) * 1929-02-15 1931-01-22 Edwin Roth Exhaust silencer for internal combustion engines

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB187492A (en) * 1921-11-28 1922-10-26 Ivor Jones Improvements in apparatus for utilizing and silencing the exhaust of internal combustion engines
GB271319A (en) * 1926-12-18 1927-05-26 Charles Henry Lines Improvements in silencers for use with internal combustion engines
GB303581A (en) * 1927-10-13 1929-01-10 Joseph Frederick William Danby Improvements in or relating to silencers for the exhaust of internal combustion engines
GB305904A (en) * 1928-07-12 1929-02-14 William Henry Standen A silencing chamber for the exhaust of internal combustion engines
GB325326A (en) * 1928-12-12 1930-02-20 Rolla Eastwood Improvements in silencers for internal combustion engines
GB341742A (en) * 1929-02-15 1931-01-22 Edwin Roth Exhaust silencer for internal combustion engines

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2224540A (en) * 1988-11-02 1990-05-09 George Fisher I.c. engine exhaust silencer
IT201900017228A1 (en) * 2019-09-25 2021-03-25 Paolo Fresi Noise abatement system for internal combustion engines
WO2021059313A1 (en) * 2019-09-25 2021-04-01 Fresi Paolo Noise abatement system for internal combustion engines
US11603780B2 (en) 2019-09-25 2023-03-14 Paolo Fresi Noise abatement system for internal combustion engines

Also Published As

Publication number Publication date
GB8711117D0 (en) 1987-06-17

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)