Variable displacement linkage mechanism

A multi-cylinder mechanism comprising:

• a cam;
• a plurality of displacement blocks, each displacement block comprising:
• a slider mechanism;
• a connecting link coupled to the slider through a first revolute joint;
• a rocker link having a rocker end and a ground end, the rocker end coupled to the connecting link through a second revolute joint, and the ground end coupled to ground through a third revolute joint;
• and
• a cam follower coupled to the connecting link and configured to engage the cam;
• wherein:
• the connecting link rotates relative to the slider about a first axis of rotation, wherein the first axis of rotation is defined by the first revolute joint and has a fixed position relative to the connecting link and the slider;
• the connecting link rotates relative to the rocker link about a second axis of rotation, wherein the second axis of rotation is defined by the second revolute joint and has a fixed position relative to the connecting link and the rocker link;
• the rocker link rotates relative to the ground end about a third axis of rotation, wherein the third axis of rotation is defined by the third revolute joint and has a fixed position relative to the rocker link and the ground end;
• a location of the third revolute joint and the third axis of rotation is adjustable relative to the first revolute joint and the first axis of rotation;
• and
• wherein the cam follower includes a roller follower having an axis of rotation that is non-coaxial to the second axis of rotation.

A variable displacement linkage mechanism comprising:

• a slider mechanism;
• a connecting link coupled to the slider through a first revolute joint;
• a rocker link having a rocker end and a ground end, the rocker end coupled to the connecting link through a second revolute joint, and the ground end coupled to ground through a third revolute joint;
• a coupler link having a first end connected to the connecting link through a fourth revolute joint;
• and
• a crank link coupled to a second end of the coupler link through a fifth revolute joint;
• wherein:
• the connecting link rotates relative to the slider about a first axis of rotation defined by the first revolute joint, wherein the first axis of rotation has a fixed position relative to the connecting link and the slider;
• the connecting link rotates relative to the rocker link about a second axis of rotation defined by the second revolute joint, wherein the second axis of rotation has a fixed position relative to the connecting link and the rocker link;
• the rocker link rotates relative to the ground end about a third axis of rotation, wherein the third axis of rotation is defined by the third revolute joint and has a fixed position relative to the rocker link and the ground end;
• the connecting link rotates relative to the coupler link about a fourth axis of rotation that is defined by the fourth revolute joint, wherein the fourth axis of rotation has a fixed position relative to the connecting link and the coupler link;
• the second axis of rotation of the second revolute joint is non-coaxial to the fourth axis of rotation of the fourth revolute joint;
• and
• a location of the third revolute joint and the third axis of rotation is adjustable relative to the first revolute joint and the first axis of rotation.