Exhaust muffler
US-2016245146-A1 · Aug 25, 2016 · US
Muffler and its corresponding manufacturing method
US2016053664A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016053664-A1 |
| Application number | US-201414782852-A |
| Country | US |
| Kind code | A1 |
| Filing date | Apr 9, 2014 |
| Priority date | Apr 10, 2013 |
| Publication date | Feb 25, 2016 |
| Grant date | — |
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- Title
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Abstract
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A manufacturing method for a muffler includes: a trimming step, of cutting out a dogleg shaped muffler body member; a bending processing step of processing the muffler body member into a tube by advancing the muffler body member between an upper roller and a lower roller of a bending machine while adjusting an advancing direction with a guide and by changing a relative position of the upper roller and the lower roller; a first joining step of joining two ends of the tubularly-processed muffler body member in a long side direction; an insertion step of inserting an inner structural member into the inside of the tubularly-processed muffler body member; a second joining step of joining caps to opening portions of the tubularly-processed muffler body member; and a third joining step of joining an air intake joint and an exhaust pipe to the sealed muffler body member.
First claim
Opening claim text (preview).
What is claimed is: 1 . A manufacturing method for a muffler comprising: a trimming step of cutting out a dogleg shaped muffler body member from a planar plate; a bending processing step of processing the muffler body member into a tube by advancing the muffler body member between an upper roller and a lower roller of a bending machine while adjusting an advancing direction with a guide and by changing a relative position of the upper roller and the lower roller; a first joining step of joining two ends of the tubularly-processed muffler body member in a long side direction of the dogleg shaped muffler body member; an insertion step of inserting an inner structural member to the inside of the tubularly-processed muffler body member; a second joining step of joining caps to opening portions of the tubularly-processed muffler body member to seal the tubularly-processed muffler body member; and a third joining step of joining an air intake joint and an exhaust pipe to the sealed muffler body member. 2 . The manufacturing method according to claim 1 , wherein in the first and second joining steps, a swaging process is used to join the two ends of the tubularly-processed muffler body member and join the caps to the opening portions of the tubularly-processed muffler body member. 3 . A muffler comprising: an upper surface; a lower surface; a side surface that is formed with a curved surface or a flat surface, and joins the upper surface and the lower surface; a first sealing part that seals one opening of a tubular member that is formed with the upper surface and the lower surface and the side surfaces; and a second sealing part that seals the other opening of the tubular member, wherein the upper surface, the lower surface and side surfaces are formed of a sheet of a flat plate member and the first sealing part and the second sealing part has a different shape each other. 4 . The muffler according to claim 3 , wherein a width of the first sealing part in a horizontal direction is narrower than a width of the second sealing part in a horizontal direction. 5 . The muffler according to claim 3 , wherein a width of the first sealing part in a vertical direction is larger than a width of the second sealing part in a vertical direction. 6 . The muffler according to claim 3 , wherein the upper surface and the lower surface each has a trapezoidal shape.
Assignees
Inventors
Classifications
Silencing apparatus characterised by method of silencing · CPC title
- F01N13/1872Primary
the assembly using stamp-formed parts or otherwise deformed sheet-metal · CPC title
Tubes having non-circular cross section · CPC title
Tubes being formed by assembly of stamped or otherwise deformed sheet-metal · CPC title
by mechanical joints, e.g. by deforming housing, tube, baffle plate or parts thereof · CPC title
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Frequently asked questions
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- What does patent US2016053664A1 cover?
- A manufacturing method for a muffler includes: a trimming step, of cutting out a dogleg shaped muffler body member; a bending processing step of processing the muffler body member into a tube by advancing the muffler body member between an upper roller and a lower roller of a bending machine while adjusting an advancing direction with a guide and by changing a relative position of the upper rol…
- Who is the assignee on this patent?
- Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification F01N13/1872. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Thu Feb 25 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 6 related publications on this page (citations in our corpus or others sharing the same primary CPC).