Chain tensioner
AssigneeIna Walzlager Schaeffler oHG
InventorReinhard Koch
Life of this patent
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Abstract
A chain tensioner, includes a housing intended for attachment to a stationary machine element of an internal combustion engine, and a piston received in the housing for axial displacement against a strand of a chain to thereby implement a tensioning of the chain. An adjusting mechanism is provided for moving the housing relative to the machine element in a direction to and away from the strand of the chain, whereby a spacer establishes a distance between the housing and the strand to thereby define an installation position of the housing.
Claims18
A chain tensioner, comprising:
- a housing intended for attachment to a stationary machine element of an internal combustion engine;
- a piston received in the housing for axial displacement against a strand of a chain to thereby implement a tensioning of the chain;
- an adjusting mechanism for moving the housing relative to the machine element in a direction to and away from the chain strand;
- and
- a spacer for establishing a distance between the housing and the chain strand to thereby define a installation position of the housing.
A chain tensioner, comprising:
- a housing intended for attachment to a stationary machine element of an internal combustion engine;
- a piston movably received in the housing for tensioning a power transmission member of a drive;
- an adjusting mechanism for moving the housing in a direction to and away from the power transmission member;
- and
- position-control means for establishing a predetermined distance between the piston and the power transmission member to thereby define an operating stroke of the piston.
A method of mounting and activation a chain tensioner for a chain drive, in particular of an internal combustion engine, comprising the following steps:
- loosely attaching a housing of a chain tensioner to a stationary machine element;
- adjusting a position of the housing in a direction to and away from a strand of a chain until a spacer abuts against one of the chain strand and a tensioner bar bearing upon the chain strand;
- securely fixing the housing to the machine element;
- and removing the spacer.
A method of mounting and activation a chain tensioner for a chain drive, comprising the steps of:
- attaching a transport safety mechanism to a housing of a chain tensioner for holding a piston in the housing in place;
- loosely attaching the housing with attached the transport safety mechanism to a stationary machine element;
- adjusting a position of the housing in a direction to and away from a strand of a chain until a spacer of the transport safety mechanism abuts against a member selected from the group consisting of the chain strand of the chain and a tensioner bar bearing upon the chain strand;
- securely fixing the housing to the machine element;
- and
- detaching the transport safety mechanism from the housing to thereby disengage the spacer from the member and allow the piston to move against the chain strand.
Dependencies are inferred from the claim text.