| 单词 | exhaust valve |
| 例句 | Companies that sell “Top Tier” gas agree to add detergents and additives to reduce carbon deposits inside the engine and on the intake and exhaust valves. Cars are getting more expensive. Here’s how to keep yours on the road longer to avoid costly payents 2023-05-15T04:00:00Z Delta, like other carries, does not allow any mask with an exhaust valve or opening. Why cloth masks are on some airlines’ no-fly lists 2021-09-03T04:00:00Z On July 27, Delta banned "any mask with an exhaust valve" on its flights, while allowing any basic "cloth face covering over their nose and mouth." CDC warned the public against wearing valved facemasks — while recommending them to health workers 2020-08-22T04:00:00Z Lead aided the combustion process and kept exhaust valves lubricated; the use of unleaded fuels left different kinds of deposits in the engine. Twenty Years of Techron Yield Unclear Results 2014-11-26T05:00:00Z After cut-off at B the steam expands under diminishing pressure, and the pencil falls gradually from B to C, following the steam pressure until the exhaust valve opens at the end of the stroke. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 2 "Hearing" to "Helmond" 2012-04-25T02:00:53.567Z We have in these engine cams considered the steam supply and point of cut-off only, and it is obvious that a second and separate cam would be required to operate the exhaust valves. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z For a few minutes the fireman had his hands full feeding the fire, and Ralph, eyes, ears and all his senses on the alert, got in perfect touch with throttle, air gauge and exhaust valve. Ralph, the Train Dispatcher The Mystery of the Pay Car 2012-02-29T03:00:25.457Z Figure 16.—Shop engine, 1901, showing governor and exhaust valve cam. The Wright Brothers' Engines and Their Design 2012-02-04T03:00:15.650Z The other member, or exhaust valve, serves as a cover for the opening through which the burned gases can leave the cylinder after their work is done. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z The valves, which are all of the conical-seated lift type, are four in number—charge inlet valve, gas inlet valve, igniting valve, and exhaust valve. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 4 "G" to "Gaskell, Elizabeth" 2011-08-24T02:00:20.690Z We don't burn on over-run, we never have, but for reliability reasons, emitting air into the engine has cooled the exhaust valves. Red Bull fears over exhaust rule 2011-07-08T10:53:03Z The average public man in the United States would not feel “nat’ral” unless intermittently bedewed with steam from the exhaust valve of the soul of some “outraged citizen,” through the medium of the public press. The American Occupation of the Philippines 1898-1912 2011-06-29T02:00:28.167Z The exhaust valve operating cam was even more ingenious. The Wright Brothers' Engines and Their Design 2012-02-04T03:00:15.650Z When the piston reaches the bottom of its power stroke, the exhaust valve is lifted by means of the bell crank which is rocked because of the point or lift on the cam. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z The piston now makes a forward stroke under the pressure of the explosion, and on its return, after the exhaust valve is opened, discharges the products of combustion. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 4 "G" to "Gaskell, Elizabeth" 2011-08-24T02:00:20.690Z The usual arrangement, by which steam and exhaust valves are moved by the same eccentric, only permits expansion with the range from the beginning to half-stroke. A History of the Growth of the Steam-Engine 2011-04-21T02:00:53.240Z Point of Release.—This is the point in the stroke at which the exhaust valve opens and relieves the pressure acting on the piston. Steam Engines Machinery's Reference Series, Number 70 2010-12-20T17:12:10.227Z The control of the spark timing was effected by advancing or retarding the ignition camshaft in relation to the exhaust valve camshaft. The Wright Brothers' Engines and Their Design 2012-02-04T03:00:15.650Z The sections at A and C are taken through the inlet valve, those at B and D are taken through the exhaust valve. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z The illustration shows the casting set for boring the inlet and exhaust valve chambers. Turning and Boring A specialized treatise for machinists, students in the industrial and engineering schools, and apprentices, on turning and boring methods, etc. They are four in number, two steam and two exhaust valves being placed at each end of the steam-cylinder. A History of the Growth of the Steam-Engine 2011-04-21T02:00:53.240Z During the forward stroke of an engine the exhaust valve in front of the piston remains open as shown in Fig. Steam Engines Machinery's Reference Series, Number 70 2010-12-20T17:12:10.227Z Its one certain and common use was to facilitate starting, the open exhaust valves easing the task of turning the engine over by hand and making priming easy. The Wright Brothers' Engines and Their Design 2012-02-04T03:00:15.650Z It is a well-known fact that the exhaust valve should close after dead center and that a certain amount of lag should be given to opening of the inlet. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z We will now pass on to the exhaust manifold, which is generally constructed of cast iron; it conducts the burned gases from the exhaust valve . Believe You Me! The valves are four in number, a steam and an exhaust valve being placed at each end of the steam-cylinder. A History of the Growth of the Steam-Engine 2011-04-21T02:00:53.240Z At D the exhaust valve closes and compression begins, rounding the bottom of the diagram up to E. The area of the actual diagram, as shown by the shaded lines in Fig. Steam Engines Machinery's Reference Series, Number 70 2010-12-20T17:12:10.227Z Instead of the movable stop operating directly on the rocker roller to hold the exhaust valve open, it was located underneath a collar on the pushrod. The Wright Brothers' Engines and Their Design 2012-02-04T03:00:15.650Z On the exhaust valve the spring must be strong enough so that the valve will not be sucked in on the inlet stroke. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z This device shifted a small spacer between the piston and the striker arm of the exhaust-valve rod, permitting the piston to push open the exhaust valve. The 1893 Duryea Automobile In the Museum of History and Technology Thad opened the exhaust valve, let the air hiss from the chamber of the lock. Salvage in Space The admission valves are shown at the top of the illustration and the exhaust valves at the bottom, although, in reality, they are at the sides of the cylinder. Steam Engines Machinery's Reference Series, Number 70 2010-12-20T17:12:10.227Z The inlet valve was of the usual automatic type while the exhaust valve was mechanically operated. The Wright Brothers' Engines and Their Design 2012-02-04T03:00:15.650Z A point which has been much discussed by engineers is the proper relation of the closing of the exhaust valve and the opening of the inlet. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z The head was cast as a thick disc, with both intake and exhaust valves located therein, and was bolted onto the flanged head end of the engine. The 1893 Duryea Automobile In the Museum of History and Technology On very small engines it is often the case that only the exhaust valve is operated mechanically. Gas and Oil Engines, Simply Explained An Elementary Instruction Book for Amateurs and Engine Attendants This valve is of the four-valve type, one steam valve and one exhaust valve being shown in the section. Steam Engines Machinery's Reference Series, Number 70 2010-12-20T17:12:10.227Z Essentially it was a manually controlled mechanism whereby all the exhaust valves could be held open as long as desired, thus preventing any normal charge intake or compression in the cylinder. The Wright Brothers' Engines and Their Design 2012-02-04T03:00:15.650Z That at B is utilized more often as an inlet cam while the profile shown at C is generally depended on to operate exhaust valves. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z This ratio permits the opening of the exhaust valve on every other revolution. The 1893 Duryea Automobile In the Museum of History and Technology Then go on to a trifle above the back centre, where the exhaust valve should close, and so on till the opening and closing of each valve has been checked. Gas and Oil Engines, Simply Explained An Elementary Instruction Book for Amateurs and Engine Attendants There are four cylindrical valves in this type of engine, two steam valves at the top and two exhaust valves at the bottom. Steam Engines Machinery's Reference Series, Number 70 2010-12-20T17:12:10.227Z The exhaust valve location on the side of the engine opposite the pilot was a decided advantage over that of the 1903 design, where the exhaust was toward the pilot. The Wright Brothers' Engines and Their Design 2012-02-04T03:00:15.650Z The valves are open one at a time, the inlet valve being lifted from its seat while the cylinder is filling and the exhaust valve is opened when the cylinder is being cleared. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z In this manner the closing of the exhaust valve is blocked, preventing the intake of the next charge, and therefore the engine misses one or more explosions until it slows to its normal speed. The 1893 Duryea Automobile In the Museum of History and Technology The method—if it may be called a method—of overcoming or preventing the exhaust valve becoming too hot is, in the case of figs. Gas and Oil Engines, Simply Explained An Elementary Instruction Book for Amateurs and Engine Attendants The exhaust valves are both opened and closed by the action of the wrist-plate and connecting rods. Steam Engines Machinery's Reference Series, Number 70 2010-12-20T17:12:10.227Z Figure 17.—Shop engine, 1901, showing operation of exhaust valve cam. The Wright Brothers' Engines and Their Design 2012-02-04T03:00:15.650Z The cylinder construction is the same as that which has always been used by Mr. Duesenberg, inlet and exhaust valves being arranged horizontally opposite each other in the head. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z On the exhaust stroke the unrestrained outer piston moved all the way to the head, expelling all of the products of combustion and pushing the exhaust valve shut again. The 1893 Duryea Automobile In the Museum of History and Technology On the other side of the exhaust valve we have the air valve and its passages, through which cool air is continually being drawn; this also helps to keep the exhaust valve cool. Gas and Oil Engines, Simply Explained An Elementary Instruction Book for Amateurs and Engine Attendants After the exhaust valve opens, the drop in pressure allows the moisture that has collected on the cylinder walls to evaporate into steam, so that during the exhaust period but little heat is transferred. Steam Engines Machinery's Reference Series, Number 70 2010-12-20T17:12:10.227Z Longitudinal movement of this rod in one direction would, by spring pressure on each stop, push them underneath the collars as the exhaust valves were successively opened. The Wright Brothers' Engines and Their Design 2012-02-04T03:00:15.650Z When the cylinder is still 65 degrees from the end of the inlet half-revolution, the exhaust valve closes. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z The slate-lined air cylinders had rubber-flap inlet and exhaust valves and a piston whose periphery was formed by two rows of brush bristles. Kinematics of Mechanisms from the Time of Watt If it is too large, it will cause both exhaust valve and seat to become burnt and pitted, due to the surface being exposed to the exceedingly high temperature of the expanding gases. Gas and Oil Engines, Simply Explained An Elementary Instruction Book for Amateurs and Engine Attendants He cried healthily, though, and gave hearty suck to their mother’s exhaust valve once Alan had cleaned the soap suds and fabric softener residue from his little body. Someone Comes to Town, Someone Leaves Town A single cam operated all the exhaust valves. The Wright Brothers' Engines and Their Design 2012-02-04T03:00:15.650Z Never open the exhaust valve by operating the rocker-arm by hand, as the push-rod is liable to come out of its socket in the cam follower and bend the rocker-arm when the motor turns over. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z This admits steam against the piston that operates the emergency exhaust valve and opens it. The Traveling Engineers' Association To Improve The Locomotive Engine Service of American Railroads If it is too large, it is equivalent to opening the exhaust valve too early, and the effect is the same, viz., a waste of power and damage to the valve and its seat. Gas and Oil Engines, Simply Explained An Elementary Instruction Book for Amateurs and Engine Attendants The exhaust valve is then closed, the inlet valve opened, and another cycle of four strokes begins. General Science With the valve box, or housing, cylindrical, the task of locking and fastening the intake and exhaust valve guides and seats in place was easy. The Wright Brothers' Engines and Their Design 2012-02-04T03:00:15.650Z The faster a motor turns, all other things being equal, the greater the amount of lead or advance it is necessary to give the opening of the exhaust valve. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z A. The same as in a simple engine with the exception that any blow on the high-pressure side will not be heard when the separate exhaust valve is closed. The Traveling Engineers' Association To Improve The Locomotive Engine Service of American Railroads The exhaust valve, however, may become overheated if it is allowed to get into bad condition, i.e., leaky. Gas and Oil Engines, Simply Explained An Elementary Instruction Book for Amateurs and Engine Attendants The pressure produced by the explosion acting upon the piston makes it complete its stroke, when the exhaust valve opens exactly as in the steam engine. Scientific American Supplement, No. 484, April 11, 1885 From below the mud came up in white billows, which danced, and swirled, and eddied as the air bubbles from the divers' exhaust valves stirred it. A Master of Fortune Being Further Adventures of Captain Kettle Further movement of the wheel in the same direction should produce a lift of the exhaust valve. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z A. Ease throttle off very fine to reduce the receiver pressure; in a moment or two the separate exhaust valve should then move. The Traveling Engineers' Association To Improve The Locomotive Engine Service of American Railroads Moreover, working at such a high vacuum as this would not only prevent us obtaining a normal explosion in the cylinder, but would upset the working of the exhaust valve. Gas and Oil Engines, Simply Explained An Elementary Instruction Book for Amateurs and Engine Attendants This is the maximum temperature by the maximum-temperature recording thermometer, and is due to the handling of the exhaust valve. The Mechanical Properties of Wood Including a Discussion of the Factors Affecting the Mechanical Properties, and Methods of Timber Testing A single camshaft operates not only all of the inlet and exhaust valves, but the magneto and gear water pump, as well. Flying Machines: construction and operation; a practical book which shows, in illustrations, working plans and text, how to build and navigate the modern airship The lag given the closing of the exhaust valve should not be as great as that given the closing of the inlet valve. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z A. The separate exhaust valve not seating properly caused by stuck valves, a weak or broken spring, or the packing rings of separate exhaust valve leaking. The Traveling Engineers' Association To Improve The Locomotive Engine Service of American Railroads The tops of the cylinders are formed flat, and seats for the inlet and exhaust valves are formed on them. A History of Aeronautics The exhaust valves, on the contrary, have only one guide each, which passes upward through the seat of the admission valve, through the valve itself by means of a collar, and through the stuffing-box. Scientific American Supplement, No. 344, August 5, 1882 There are two central disk plates worked by separate eccentrics, which give separate motion to the steam and exhaust valves. Scientific American Supplement, No. 286, June 25, 1881 The valves are situated on the inner side of the cylinder head, the arrangement being unconventional in that the exhaust valves are placed above the inlet. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z A. The separate exhaust valve has failed to close. The Traveling Engineers' Association To Improve The Locomotive Engine Service of American Railroads The inlet valves were of the automatic type, arranged on the tops of the cylinders, while the exhaust valves were also overhead, operated by rockers and push-rods. A History of Aeronautics S is the steam pipe; s, s' handles to the steam valves, and e, e' to the exhaust valves, shown in dotted line in fig. A Catechism of the Steam Engine Then I broke down altogether and began to cry like a baby, while Gerard got out and emptied the kerosene from the oil lamps into the exhaust valves. The Motormaniacs The valve operating arrangement is different also, as a single four point cam is used to operate the seven exhaust valves. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z Try jarring it with a hammer on the front side, near the exhaust valve. The Traveling Engineers' Association To Improve The Locomotive Engine Service of American Railroads The exhaust valves are placed on the leading, or air-screw side, of the engine, in order to get the fullest possible cooling effect. A History of Aeronautics When once set, therefore the movement of the exhaust valves is constant, and they will always be opened and closed at the same point of the stroke. A Catechism of the Steam Engine These give the nine fulcrumed levers the proper motion to open the inlet and exhaust valves at the proper time. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z The exhaust valve is mounted in the cylinder head, Fig. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z A. The same as a simple engine with separate exhaust valve open, so engine will work simple instead of compound. The Traveling Engineers' Association To Improve The Locomotive Engine Service of American Railroads The spring of the exhaust valve was not placed round the stem in the usual way, but at the end of a short lever, away from the heat of the exhaust gases. A History of Aeronautics An open intake or exhaust valve, which might have become sluggish or stuck from carbon, might cause trouble. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z Slots are cut in these pipes so that cooler water is drawn directly around the exhaust valves. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z The inlet valves were of the automatic type so that a very simple valve mechanism consisting only of the exhaust valve push rods was provided. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z Because the separate exhaust valve is opened by air pressure and the engine cannot be simpled without sufficient pressure. The Traveling Engineers' Association To Improve The Locomotive Engine Service of American Railroads The exhaust valve then closed, and the downward motion of the piston, continuing, caused a partial vacuum inside the cylinder; when the piston overran the ports, the rich mixture from the crank case immediately entered. A History of Aeronautics The water is pumped through brass pipes to the lower end of the cylinder water jackets and leaves the upper end of the jackets just above the exhaust valves. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z Q. In the event of separate exhaust valves failing to work when throttle is wide open, what can be done to assist in opening? The Traveling Engineers' Association To Improve The Locomotive Engine Service of American Railroads This reduces the temperature of the gases passing around the exhaust valves and prevents warping of these members. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z A. Cover the ports on that side, open separate exhaust valve and run in; use live steam in low-pressure cylinder only, for the broken piston. The Traveling Engineers' Association To Improve The Locomotive Engine Service of American Railroads Inlet and exhaust valves can be set quite independently of one another—a useful point, since the correct timing of the opening of these valves is of importance. A History of Aeronautics A. This would indicate leakage past the exhaust valve 7. The Traveling Engineers' Association To Improve The Locomotive Engine Service of American Railroads The engine was a 35 horsepower Vee design, water cooled, with overhead inlet and exhaust valves, and Bosch high-tension magneto ignition. A History of Aeronautics The intake valve is withdrawn by the use of special tools through the cylinder head, the exhaust valve being first dismounted. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z For low-pressure head broken, would cover ports on that side, open separate exhaust valve and use high-pressure side; need not take down main rod, but would see that the cylinder is well oiled. The Traveling Engineers' Association To Improve The Locomotive Engine Service of American Railroads In this type the inlet and exhaust valves are both located in the cylinder head, and mechanically operated by push-rods and rockers. A History of Aeronautics |
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