초록 ▼

A novel apparatus and method to engage a liner in an cylinder of an engine is provided. A wedge and rod are utilized as part of a liner remover assembly to move at least one collet axially to engage the liner. In a preferred embodiment, a novel eyehook is provided at an end of the rod to assist in t

A novel apparatus and method to engage a liner in an cylinder of an engine is provided. A wedge and rod are utilized as part of a liner remover assembly to move at least one collet axially to engage the liner. In a preferred embodiment, a novel eyehook is provided at an end of the rod to assist in the pulling of the liner from the cylinder.

대표청구항 ▼

The invention claimed is: 1. A liner removing apparatus for removing a liner from a cylinder, the apparatus comprising: a wedge coupled to a first end of a rod; at least one collet capable of receiving at least a portion of the wedge and the rod, the at least one collet having a first end for inser

The invention claimed is: 1. A liner removing apparatus for removing a liner from a cylinder, the apparatus comprising: a wedge coupled to a first end of a rod; at least one collet capable of receiving at least a portion of the wedge and the rod, the at least one collet having a first end for inserting into the cylinder through an opening defined by an upper surface of the cylinder, the at least one collet having a second end opposite the first, the second end including a flange engageable with the upper surface of the cylinder so as to limit insertion of the at least one collet into the cylinder; a plate coupled to the at least one collet; at least one nut threadedly coupled to the rod; a lifting member mountable at a second end of the rod; and wherein the at least one collet has at least one annular groove having at least one ring on its annular surface. 2. The liner removing apparatus of claim 1, further comprising: a first thrust bearing assembly at least partially enclosed by the plate and a retaining ring; a bridge supporting a second thrust bearing assembly; and a second nut coupled to the second thrust bearing assembly. 3. The liner removing apparatus of claim 2, wherein the apparatus can be made from a non-resilient material such as an alloy, the alloy can be selected from a group consisting of titanium, chromium, manganese, iron, nickel, copper, zinc, silver, tin, tungsten, platinum, gold, lead, steel, and a combination thereof. 4. The liner removing apparatus of claim 2, wherein the apparatus can be made from at least one polymer. 5. The liner removing apparatus of claim 1, wherein the rod is at least partially threaded along its outer surface. 6. The liner removing apparatus of claim 1, wherein the lifting member comprises an eyehook having at least one guiding member to guide a hook to a central portion of the eyehook. 7. The liner removing apparatus of claim 1, wherein the lifting member is mounted by a pin that is received in the second end of the rod. 8. A liner remover assembly, comprising: a wedge fastened to a first end of a rod; at least two or more collets forming a cavity capable of receiving at least partially the wedge and the rod; a plate coupled to the at least two or more collets and the rod, the plate at least partially enclosing a first thrust bearing assembly and a retaining ring; a first nut threaded to the rod; a bridge coupled to the rod; a second nut threaded to the rod; and a second thrust bearing assembly disposed between the second nut and the bridge. 9. The liner remover assembly of claim 8, further comprising a lifting member coupled to a second end of the rod. 10. The liner remover assembly of claim 9, wherein assembly is made from a non-resilient material such as an alloy and the alloy is selected from a group consisting of titanium, chromium, manganese, iron, nickel, copper, zinc, silver, tin, tungsten, platinum, gold, lead, steel, and a combination thereof. 11. The liner remover assembly of claim 9, wherein the lifting member comprises an eyehook having at least one guiding member to guide a hook to a central portion of the eyehook. 12. The liner remover assembly of claim 9, wherein the assembly can be made from at least one polymer. 13. The liner remover assembly of claim 8, wherein the at least two or more collets having on an outer surface at least one annular groove to receive at least one ring and having at least one flange at an end. 14. A liner removing apparatus comprising: means for supporting the liner removing apparatus; means for gripping the liner in a cylinder, the means for gripping being insertable into the cylinder through an opening defined by an upper surface of the cylinder and including an engaging means for engaging the upper surface of the cylinder so as to limit insertion of the gripping means into the cylinder; and means for lifting the liner. 15. The apparatus of claim 14, wherein the means for supporting the liner removing apparatus is a bridge. 16. A liner removing apparatus comprising: means for supporting the liner removing apparatus; means for gripping the liner in a cylinder; and means for lifting the liner wherein the means for gripping the liner comprises: a rod having a wedge at a first end; at least one collet capable of receiving at least partially the rod and the wedge; a first nut threaded to the rod and coupled to a plate; and a first thrust bearing assembly disposed at least partially in the plate. 17. A liner removing apparatus comprising: means for supporting the liner removing apparatus; means for gripping the liner in a cylinder; and means for lifting the liner wherein the means for lifting comprises: a second thrust bearing assembly disposed between a second nut and the bridge, the second nut threaded to the rod; and a lifting member coupled at a second end of the rod.