| 摘要 |
A tensioner including a housing having a bore, a hollow piston, a piston spring, a check valve between the source of pressurized fluid and hollow piston, and a pawl plate. The hollow piston is slidably received within the bore of the housing and forms a fluid chamber with the bore. The hollow piston also has a plurality of grooves formed along the outside thereof. The piston spring biases the piston in an outward direction from the bore. The pawl plate has a bottom with a protruding pawl ridge that meshes with the grooves on the piston. The pawl plate is received by the housing and receives a portion of the piston. One side of the pawl plate is biased in the outward direction by a vertical spring or springs and in a lateral direction by a horizontal spring.
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