| 单词 | slide valve |
| 例句 | According to the update , erosion created a hole in the slide valve, allowing air to mix with hydrocarbons. Study: Valve hole set off refinery blast, fire in Wisconsin 2018-12-12T05:00:00Z The valves of the high-pressure and intermediate cylinders were of the piston type, and the low-pressure cylinder had double-ported slide valves, fitted with Stephenson link motion. Loss of the Steamship 'Titanic' 2012-04-17T02:00:14.973Z In setting the slide valve of an engine having a link motion, there are two distinct operations. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z Give sketches showing one method of attaching the valve rod to an ordinary slide valve. An Introduction to Machine Drawing and Design 2012-03-06T03:00:25.777Z The Steam Valve is a plain Slide Valve, identical to the slide valve of a Steam Engine, but derives its motion from a cam. Scientific American, Vol. XXXVII.?No. 2. [New Series.], July 14, 1877 A Weekly Journal Of Practical Information, Art, Science, Mechanics, Chemistry, And Manufactures 2012-01-05T03:00:29.743Z Piston and slide valves of different types are illustrated and explained. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z The so called Corliss valve differs radically from the slide valve, but the results to be obtained and the terms used in its design are practically the same. Steam Engines Machinery's Reference Series, Number 70 2010-12-20T17:12:10.227Z The slide valve is balanced by means of strips let into its back, and bearing against a plate fixed to the steam chest cover. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z The throttle valve is a simple slide valve and must have been primitive for the time, for the balance-poppet throttle valve was in use in this country previous to 1851. The 'Pioneer': Light Passenger Locomotive of 1851 United States Bulletin 240, Contributions from the Museum of History and Technology, paper 42, 1964 E. G. asks: "How can I set the slide valves of a locomotive when she is on the road?" Scientific American, Vol. XXXVII.?No. 2. [New Series.], July 14, 1877 A Weekly Journal Of Practical Information, Art, Science, Mechanics, Chemistry, And Manufactures 2012-01-05T03:00:29.743Z The drop valve is now displacing the slide valve as a better form of excluding or admitting steam. James Watt In the following are shown some of the valves in common use, being, with the exception of the Corliss, modifications of the plain slide valve, and similar in their action. Steam Engines Machinery's Reference Series, Number 70 2010-12-20T17:12:10.227Z Second, because the steam is wire drawn during the time that the slide valve is closing the port to effect the cut off. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z Figure 24.—Bottom of valve box with slide valve removed. The 'Pioneer': Light Passenger Locomotive of 1851 United States Bulletin 240, Contributions from the Museum of History and Technology, paper 42, 1964 J. H. S. asks: "What is the method of setting locomotive slide valves from marks on the slide spindle?" Scientific American, Vol. XXXVII.?No. 2. [New Series.], July 14, 1877 A Weekly Journal Of Practical Information, Art, Science, Mechanics, Chemistry, And Manufactures 2012-01-05T03:00:29.743Z Even with increased pressure, this effect will be more appreciable when the area and travel of slide valve are in excess. Scientific American, Volume XXXVI., No. 8, February 24, 1877 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures. A. An Allen ported valve is an outside admission slide valve having an extra port from one end of the valve to the other, above the exhaust cavity and through the body of the valve. The Traveling Engineers' Association To Improve The Locomotive Engine Service of American Railroads In engines which vary the point of cut off by reducing the travel of the slide valve, this is accomplished by using double ported valves or griddle valves. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z The slide valve, b', establishes a communication between the pump chamber and the cylinder. Scientific American Supplement, No. 623, December 10, 1887 After traversing this box, the steam enters the slide valve box through the pipe, r�, its admission thereto being regulated by the hand-wheel, R�, which likewise serves for stopping the engine. Scientific American Supplement, No. 388, June 9, 1883 The Steam Valve is a plain Slide Valve identical to the slide valve of a Steam Engine, but derives its motion from a cam. Scientific American, Volume XXXVI., No. 8, February 24, 1877 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures. A piston valve can be either inside or outside admission, while a slide valve is always outside admission. The Traveling Engineers' Association To Improve The Locomotive Engine Service of American Railroads For the low pressure cylinder the oil is fed into the receiver, and usually at a point near the slide valves. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z The air pump sucks and forces nothing but cold air, and nothing but cold air passes through the distributing slide valve. Scientific American Supplement, No. 623, December 10, 1887 The slide valve box, F, is bolted to the cap-piece, B�, as seen in Fig. Scientific American Supplement, No. 388, June 9, 1883 Solder the forks to the rods, and put the rods in place in the guides, with the forks as far away from G1 as the travel of the slide valve. Things To Make Q. If a slide valve is broken, what can be done to run the engine on one side? The Traveling Engineers' Association To Improve The Locomotive Engine Service of American Railroads The slide valve may also be operated by hand before the engine is started, or it may be operated by a steam reversing gear. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z In these uses of the slide valve, too, means are suggested and carried out of practically balancing the valve. Scientific American Supplement, No. 787, January 31, 1891 As for the slide valve, t, its arrangement may be distinguished in section in Fig. Scientific American Supplement, No. 388, June 9, 1883 Pull out the piston rod as far as it will go, and push the slide valve right back. Things To Make At the same time port "s" in the slide valve registers with port "r" in the slide valve seat, and allows air from the auxiliary reservoir to flow to the brake cylinder. The Traveling Engineers' Association To Improve The Locomotive Engine Service of American Railroads The slide valve spindle may have broken. 8th. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z You will observe, therefore, that the plain slide valve engine gives the most general satisfaction at about two-thirds cut off and a very low economic result. Scientific American Supplement, No. 787, January 31, 1891 Ignition is effected electrically by a series of sparks playing between two platinum points in the slide valve, and this permits of regulating the instant of ignition through the edges of the orifices. Scientific American Supplement, No. 799, April 25, 1891 The low pressure cylinders are fitted with slide valves. Scientific American Supplement, No. 595, May 28, 1887 When a release of the brake occurs and piston 26 is moved back to its normal position, spring 46 forces graduating stem 59 and slide valve 48 back to release position. The Traveling Engineers' Association To Improve The Locomotive Engine Service of American Railroads From the slide valve and piston of the L. P. cylinder leaking. 8th. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z I have already explained, in connection with the slide valve, that advancing the eccentric does not change the movement of the valve on its seat, but simply its relation to the movement of the piston. Scientific American Supplement, No. 787, January 31, 1891 It also allows larger cylinders to be got in between the frames of inside cylinder engines, as, the slide valves may be placed on the top or bottom of the cylinders. Scientific American Supplement, No. 458, October 11, 1884 The loose eccentric is of course a familiar arrangement in connection with poppet valves, as well as for the purpose of reversing an engine when driving a single slide valve. Scientific American Supplement, No. 415, December 15, 1883 Brake cylinder air will now be free to exhaust through port "r", large cavity "n" in the slide valve and port "p" leading to the atmosphere. The Traveling Engineers' Association To Improve The Locomotive Engine Service of American Railroads Move that eccentric round upon the axle until the slide valve leaves the steam port at the front end of the cylinder open to the amount of required valve lead. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z This device was designed specially as an inexpensive method of changing the common slide valve into an automatic cut off. Scientific American Supplement, No. 787, January 31, 1891 Tappets, cams, and eccentrics were all tried, to work the slide valve, to obtain the best results. A History of Aeronautics The triple valve, as will be seen, is simply a small piston, carrying with it a slide valve, which can be moved up or down by increasing or decreasing the pressure in the brake pipe. Scientific American Supplement, No. 392, July 7, 1883 The straight air brake valve is of the slide valve type. The Traveling Engineers' Association To Improve The Locomotive Engine Service of American Railroads The H. P. slide valve may be off, or away from its seat, thus admitting the steam to both sides of the piston at the same time. 2d. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z The main slide valve is hollowed in the back and the ports cut diagonally across the valve to form almost a letter V. The expansion valve is V-shaped, and circular to fit its circular-seat. Scientific American Supplement, No. 787, January 31, 1891 The two engines are identical in design, and are constructed of forged steel with the exception of the bearings, connecting-rods, crossheads, slide valves and pumps, which are of phosphor-bronze. Scientific American Supplement, No. 286, June 25, 1881 At the same time the slide valve covers the port to the brake cylinder, and is in such a position that the air from the latter may exhaust into the atmosphere. Scientific American Supplement, No. 392, July 7, 1883 This independent release of the locomotive brake does not cause the equalizing piston and its slide valve in the distributing valve to change their position. The Traveling Engineers' Association To Improve The Locomotive Engine Service of American Railroads The slide valve nut may have slackened back, thus loosening the slide valve. 7th. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z In considering the slide valve in its simple form with or without lap, we find there are certain limitations to its use as a valve that would give the best results. Scientific American Supplement, No. 787, January 31, 1891 Q.--What species of slide valve is employed? A Catechism of the Steam Engine To release the brakes, the piston and slide valves are again moved into the position shown, by the driver turning air from the main reservoir into the brake pipe. Scientific American Supplement, No. 392, July 7, 1883 Brake pipe air will now be free to flow past the piston to the slide valve chamber and out at "R" to the auxiliary reservoir. The Traveling Engineers' Association To Improve The Locomotive Engine Service of American Railroads If the engine has been overhauled, the forward eccentric may have been connected to the wrong end of the link, thus giving an improper motion to the slide valve. 18th. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z The steam is supplied by a passage through the main valve which operates exactly as an ordinary slide valve would. Scientific American Supplement, No. 787, January 31, 1891 Q.--An additional slide valve is sometimes used for cutting off the steam? A Catechism of the Steam Engine The action of a common slide valve may be traced as follows: Fig. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z A. The valve gear is the same as that of the 9½ or 11 inch compressor, only that a piston valve is used to distribute the steam instead of a slide valve. The Traveling Engineers' Association To Improve The Locomotive Engine Service of American Railroads The pipe for supplying oil to the slide valve and cylinder is furnished with a sight feed oil cup, the oil being carried by steam from the steam drum. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z The reasoning applied here would hold good also to a less extent on the slide valve, but is not the point of absolute cut off. Scientific American Supplement, No. 787, January 31, 1891 A.--Yes, very frequently; and the slide valve is sometimes on the side or back of the valve casing, and sometimes on the back of the main or distributing valve, and moving with it. A Catechism of the Steam Engine Reducing the travel delays the point of cut off in the Gonzenback valve, whereas in the common slide valve it gives an earlier cut off. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z Q.--Which is the most beneficial construction of slide valve? A Catechism of the Steam Engine This mechanism, as a whole, may also be called, and is sometimes called, the valve gear, because it is the mechanism or gear that operates the slide valve. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z But for moderate amounts of expansion it will suffice, provided there be lap upon the slide valve. A Catechism of the Steam Engine In some of Stephenson's engines the regulator consists of a slide valve covering a port on the top of the valve chests. A Catechism of the Steam Engine The slide valve is of brass, and the regulator consists of two brass slide valves worked over ports in a chest in the steam pipe, set in the smoke box. A Catechism of the Steam Engine Balance piston to take pressure off slide valve. A Catechism of the Steam Engine The construction of a common slide valve is shown in Fig. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z Q.--Is the operation of surfacing, which you have described, necessary in the case of all slide valves? A Catechism of the Steam Engine A gridiron slide valve has been used by Stephenson, which consists of a perforated square moving upon a face with an equal number of holes. A Catechism of the Steam Engine Q.--Will you explain how the slide valve of a marine engine is set? A Catechism of the Steam Engine |
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