Patent ID: 9657736
Date: 2017-05-23
CPC Classifications: C09K,F01C,F04C,F16J

Claim:
1. A scroll fluid machine, comprising: a pair of scrolls, each having an end plate and a spiral wrap provided to stand on the end plate and disposed such that a distal end face of the spiral wrap faces the opposite end plate to form a sealed chamber between the scrolls; a tip seal inserted in a seal groove formed in the distal end face of the spiral wrap to provide a seal between the distal end face and the opposite end plate; a first swelling member interposed between a first side face of the tip seal and a first side face of the seal groove facing the tip seal; and a second swelling member interposed between a second side face of the tip seal and a second side face of the seal groove facing the tip seal, wherein the first swelling member is not bonded to both of the tip seal and the first side face of the seal groove, the second swelling member is not bonded to both of the tip seal and the second side face of the seal groove, each of the swelling members is swelling upon absorbing a liquid in the sealed chamber to press the tip seal toward the other swelling member, and in a cross section view of the spiral wrap, the first swelling member is not connected to the second swelling member.