NEW DESIGN OF PISTON RODS SEALING UNIT OF STERLING ENGINE

Анотація

 The advantage of suggested design of sealing unit of Stirling engine actuating and displacing pistons is that due to supply to intergland space of medium with pressure half as large as average pressure of operating medium in working cylinder, pressure head on separate gland seals is decreased two times. This results in increase of durability of gland seals two times and more. Fluoroplastic seal glands have thin lobes with inner cone hole accommodating the sealed rod and are fitted on them preliminarily with interference. The lobes of gland seal are additionally pressed to the rod surface by high media pressure, thus providing high tightness and compensating possible displacement of rod surface from theoretical cylindricity.