AFGANGSVENTIL FOR EN KOMPRESSOR

摘要

A discharging valve device for a compressor discharges gas compressed in a compression chamber outside said chamber against an urging force of a discharging valve (4) to a valve seat (42) and resistance of breaking a film of a lubricating oil deposited at and near a coacting area formed between the valve seat and the discharging valve (4). The discharging valve device comprises a discharging port (l) communicated with the compression chamber, the valve seat (42) being formed at the peripheral portion of said discharging port (l) and having a curvature in cross section, and the discharging valve (4) which is forcibly in contact with a part of said valve seat (42) so as to open and close said discharging port depending on pressure in said compression chamber. The contacting width of the sealing part formed by the contact through an oil film between said discharging valve (4) and said valve seat (42) is smaller than a contacting width of an oil film formed in case of combination of a flat discharging valve with a valve seat having a uniform curvature in cross section.