Patent ID: 7632092

Claim:
A device for regulating a flow cross section in cooling air inflows of a bulk material grate cooler for cooling hot bulk material having cooling grates for supporting the bulk material, comprising: a regulator housing integrated into the cooling air inflow below the cooling grate having at least one inlet, at least one outlet and an interior passage between the inlet and outlet for cooling air flow, a control element comprising an inner body which can be moved translatorily in the passage by the cooling air flow between an at rest position and a fully displaced position, a device arranged to provide a restoring force against the inner body counter to a direction of the cooling air flow, the inner body being guided displaceably counter to the action of the restoring force, the regulator housing being configured such that with increasing displacement inside the regulator housing of the inner body towards the fully displaced position in response to the cooling air flow, a free flow cross section of the regulator housing remaining for the cooling air is reduced, and with decreased displacement of the inner body away from the at rest position, the free flow cross section of the regulator housing for the cooling air is increased.