Lubricant injector

A lubricant injector comprising:

• at least one lubricant inlet,
• at least one lubricant outlet,
• a control piston, and
• a metering piston,
• wherein the control piston is configured to conduct lubricant from the lubricant inlet to the metering piston, and the metering piston is configured to pump the lubricant provided by the control piston to the at least one lubricant outlet,
• wherein the metering piston includes a first metering chamber and a second metering chamber that are each connected to the at least one lubricant outlet so that both from the first metering chamber and from the second metering chamber lubricant is conductible to the at least one lubricant outlet,
• wherein the lubricant injector further includes a first lubricant channel and a second lubricant channel,
• wherein the first lubricant channel is configured to connect the second metering chamber to the lubricant inlet or to the lubricant outlet, and the second lubricant channel is configured to connect the first metering chamber to the lubricant inlet or to the lubricant outlet,
• wherein the control piston includes a first control space and a second control space,
• wherein in a first switching state of the control piston the lubricant inlet is connected via the first control space, but not via the second control space, to the first lubricant channel and the second metering chamber, and in a second switching state the lubricant inlet is connected via the second control space, but not via the first control space, to the second lubricant channel and the first metering chamber,
• wherein the control piston includes a control-piston workspace that when pressurized with lubricant shifts the control piston toward the second switching state, and
• wherein the control-piston workspace is fluidly connected to the lubricant inlet.