A Textbook On Marine Engineering... 2
A Textbook On Marine Engineering... 2
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In our eReader you can find the full English version of the book. Read A Textbook On Marine Engineering... 2 Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book A Textbook On Marine Engineering... 2
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18. A cut-off gear of a somewhat different type is that known as the Reea variable cut-off» which is shown in Figs. 8 and 9. The engine has four independent poppet valves attached to levers; the valves are operated by wipers.
As in the other engines described, the wipers are located on the forward rocker-shaft and operated from the after rocker-shaft. The exhaust wipers are loose on the forward rocker-shaft, while the steam wipers are keyed to it. The Digitized by Google 18 THE MACHINERY OP § 1...1 exhaust wipers derive their motion from the after rocker- shaft through two cranks and a diagonal link, which imparts to them a motion opposite in direction to that of the steam wipers. The valve gear when following full stroke is oper- ated by one full-stroke cam, which serves for both motions.
The engine is reversed by shifting the cam-rod hook from the lower rocker-arm pin to the upper rocker-arm pin.
When using the cut-off, the steam valves are opened by the full-stroke cam, but close under the action of the cut-off gear.
What to read after A Textbook On Marine Engineering... 2?
You can find similar books in the "Read Also" column, or choose other free books by International Correspondence Schools to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
18. A cut-off gear of a somewhat different type is that known as the Reea variable cut-off» which is shown in Figs. 8 and 9. The engine has four independent poppet valves attached to levers; the valves are operated by wipers.
As in the other engines described, the wipers are located on the forward rocker-shaft and operated from the after rocker-shaft. The exhaust wipers are loose on the forward rocker-shaft, while the steam wipers are keyed to it. The Digitized by Google 18 THE MACHINERY OP § 1...1 exhaust wipers derive their motion from the after rocker- shaft through two cranks and a diagonal link, which imparts to them a motion opposite in direction to that of the steam wipers. The valve gear when following full stroke is oper- ated by one full-stroke cam, which serves for both motions.
The engine is reversed by shifting the cam-rod hook from the lower rocker-arm pin to the upper rocker-arm pin.
When using the cut-off, the steam valves are opened by the full-stroke cam, but close under the action of the cut-off gear.
What to read after A Textbook On Marine Engineering... 2?
You can find similar books in the "Read Also" column, or choose other free books by International Correspondence Schools to read onlineMoreLess
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