USRE3364E - Improvement in steam-engine-valve devices - Google Patents
Improvement in steam-engine-valve devices Download PDFInfo
- Publication number
- USRE3364E USRE3364E US RE3364 E USRE3364 E US RE3364E
- Authority
- US
- United States
- Prior art keywords
- valve
- steam
- engine
- boiler
- barrel
- Prior art date
Links
- 239000007788 liquid Substances 0.000 description 16
- 230000001105 regulatory Effects 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 210000002356 Skeleton Anatomy 0.000 description 2
- 210000000038 chest Anatomy 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
Images
Definitions
- A represents a steam-cylinder, provided with l a piston, Bfwhieh connects by a rod, C, with the crank D of the shaft E, in the usual manner.
- the steam-cylinder is located within the boiler, or in a steam-chamber connected therewith, as shown and described in Letters Patent No. 83,445, granted to myself, and receives steam at the pressure and temperature which exist in the boiler.
- thevvalve and steam-admission ports need not be inelosed within the chest ordinarily employed for the purpose, but the steam is allowed to enter directly from the boiler through the uncovered valve and admission-ports into the cylinder, thus effecting a saving of fuel and preventing the steam from being wire-drawn.
- valve is held in place against its seat f by the pressure of the steam which surrounds it, and without the aid of solid or skeleton covers, plates,v or other mechanical devices usually employed for this purpose, and thus the valve is left wholly open and uncovered,
- valve-device the construction of the valve-device is simpliiied, the number of parts required to make the mechanism operative is reduced, and all the friction which necessarily arises between the valve and any mechanical device employed to press it against its seat is avoided.
- the cut-off valve When the engine is in motion the cut-off valve remains stationary until the barrel J has moved far enough to strike the piston K, and then the cut-olf valve moves and cuts oil' the steam at half-stroke, or any other portion of the stroke, according to the amount of play of the piston K in the barrel J.
- the resistance produced by the liquid can be regulated to correspond to the required speed of the engine. This result is attained by means of a regulating-screw, g, which enters the side of the barrel J. (See Fig. 2.) By screwing this screw in, the channel f can be partially or wholly closed. Instead of the. screw avalve of any desired description could be used.
- the lower part of the main-valve rod is made tubular, so as to constitute a sleeve, or hollow bearing, through which the cutoff-valve rod e plays, the two rods having thus a common axis.
- the regulating-piston and the barrel for containing the resisting medium provided with a channel connecting its ends, with or without an adjusting or regulating valve, in combination with the valve and its movingcam and connecting-rod, substantially as and for the purposes set forth.
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