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Sealing ring for stuffing box

A technology for stuffing boxes and diesel engines, which is applied in sealing, engine sealing, closing, etc. It can solve the problems of loss of lubricating oil, brushing, and reduced sealing efficiency, and achieve the effects of improving efficiency, reducing the number, and greatly adapting

Inactive Publication Date: 2005-08-24
WAERTSILAE SWITZERLAND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The aforementioned reduction in brushing and sealing efficiency is very advantageous, especially for modern large two-stroke diesel engines operating at high piston speeds and high intake pressures
For example, a large amount of lubricating oil will be lost from the piston rod into the intake chamber

Method used

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  • Sealing ring for stuffing box
  • Sealing ring for stuffing box
  • Sealing ring for stuffing box

Examples

Experimental program
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Embodiment Construction

[0031] According to the invention, a stuffing box ring for a stuffing box of a two-stroke crosshead large diesel engine is proposed. As is well known, a diesel engine of this type used, for example, as a marine transmission has a plurality of cylinders, in each of which a reciprocating piston is arranged, which is passed through a piston rod 3 (see figure 1 ) is connected with a crosshead, and the other end of the crosshead is connected with the crankshaft through a push rod. The crosshead is linearly movably supported on a sliding track fixed in the crank chamber 5 of the engine housing, below the normal working position of the cylinder. The above-mentioned stuffing box is used for passing the piston rod 3 from the crank chamber 5 to the intake chamber 4 .

[0032] figure 1A cross-sectional view of a typical embodiment of a stuffing box for a longitudinally vented two-stroke crosshead large diesel engine is shown, the stuffing box generally indicated by reference numeral 1 ...

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Abstract

The stuffing box ring has a piston rod (3) passing through it between the air-receiver chamber (4) and the crank chamber (5) The surface of the stuffing box ring (10-12) which slides along the piston rod when in operation has a hard, wear-resistant chrome o chrome-ceramic or galvanized coating. The ring has at least two segments peripherally adjacent and completing a ring. A spring ( encloses the ring's periphery and presses the ring against the piston rod.

Description

technical field [0001] The invention relates to a stuffing box ring used for a stuffing box of a two-stroke crosshead large diesel engine. Background technique [0002] Longitudinal-ventilated two-stroke large diesel engines used, for example, as main drives of ships, generally have a plurality of cylinders, each of which houses a reciprocating piston. The piston is connected with the crosshead which is movably supported on the sliding track in the housing of the diesel engine through the piston rod, and the other end of the crosshead is connected with the crankshaft of the diesel engine through the push rod. A packing that generally contains a plurality of packing rings arranged one behind the other with respect to the longitudinal axis of the piston rod and forming the packing of the packing. [0003] Depending on the function, there are various types of stuffer rings. One or more brush rings are provided at the end of the packing box facing the cylinder, whose main func...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16J15/28F02B3/06F16J15/26
CPCF16J15/28F02B3/06F02F2007/0097Y02T10/12F16J15/162Y10S277/908
Inventor G·P·冯塔纳
Owner WAERTSILAE SWITZERLAND
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