Disclosed is a combustion heat generator with a recirculation region for forming uniform temperature distribution in a combustion chamber by forming a gas recirculation region around a central part of a combustion space in a housing and injecting fuel into the gas recirculation region to generate space combustion based on the recirculation region.

A specimen heating apparatus includes a heater unit configured to heat a test specimen held in a material testing machine, a heater holding unit configured to hold the heater unit in a set position relative to the test specimen for heating, a specimen temperature measurement unit attached to the heater unit and configured to measure temperature of the test specimen when the heater unit is in the set position, a temperature controller configured to control heating of the heater unit in response to a temperature measured by the specimen temperature measurement unit, and a thermal insulation unit configured to cover the heater unit, wherein the heater holding unit holds the heater unit in such a way that the heater unit is allowed to be brought to and removed from the set position while the test specimen is being held in the material testing machine.

A specimen heating apparatus includes a heater unit configured to heat a test specimen held in a material testing machine, a heater holding unit configured to hold the heater unit in a set position relative to the test specimen for heating, a specimen temperature measurement unit attached to the heater unit and configured to measure temperature of the test specimen when the heater unit is in the set position, a temperature controller configured to control heating of the heater unit in response to a temperature measured by the specimen temperature measurement unit, and a thermal insulation unit configured to cover the heater unit, wherein the heater holding unit holds the heater unit in such a way that the heater unit is allowed to be brought to and removed from the set position while the test specimen is being held in the material testing machine.

A specimen heating apparatus includes a heater unit configured to heat a test specimen held in a material testing machine, a heater holding unit configured to hold the heater unit in a set position relative to the test specimen for heating, a specimen temperature measurement unit attached to the heater unit and configured to measure temperature of the test specimen when the heater unit is in the set position, a temperature controller configured to control heating of the heater unit in response to a temperature measured by the specimen temperature measurement unit, and a thermal insulation unit configured to cover the heater unit, wherein the heater holding unit holds the heater unit in such a way that the heater unit is allowed to be brought to and removed from the set position while the test specimen is being held in the material testing machine.

A specimen heating apparatus includes a heater unit configured to heat a test specimen held in a material testing machine, a heater holding unit configured to hold the heater unit in a set position relative to the test specimen for heating, a specimen temperature measurement unit attached to the heater unit and configured to measure temperature of the test specimen when the heater unit is in the set position, a temperature controller configured to control heating of the heater unit in response to a temperature measured by the specimen temperature measurement unit, and a thermal insulation unit configured to cover the heater unit, wherein the heater holding unit holds the heater unit in such a way that the heater unit is allowed to be brought to and removed from the set position while the test specimen is being held in the material testing machine.

Disclosed is a combustion heat generator with a recirculation region for forming uniform temperature distribution in a combustion chamber by forming a gas recirculation region around a central part of a combustion space in a housing and injecting fuel into the gas recirculation region to generate space combustion based on the recirculation region.

An apparatus is provided for producing plastic containers, comprising a heating device that heats plastic preforms, and including a shaping device provided downstream of this heating device in the transport direction of the plastic preforms, which shaping device shapes the plastic preforms into the plastic containers, wherein a tempering device for tempering the plastic preforms heated by the heating device is provided in the transport direction of the plastic preforms between the heating device and the shaping device, which tempering device has at least one tempering unit provided on a carrier rotatable about a predetermined rotary axis, and which tempering unit has at least two contacting devices, between which at least one section of the plastic preform can be received, which contacting devices can be moved in relation to one another along a predetermined direction.

An apparatus is provided for producing plastic containers, comprising a heating device that heats plastic preforms, and including a shaping device provided downstream of this heating device in the transport direction of the plastic preforms, which shaping device shapes the plastic preforms into the plastic containers, wherein a tempering device for tempering the plastic preforms heated by the heating device is provided in the transport direction of the plastic preforms between the heating device and the shaping device, which tempering device has at least one tempering unit provided on a carrier rotatable about a predetermined rotary axis, and which tempering unit has at least two contacting devices, between which at least one section of the plastic preform can be received, which contacting devices can be moved in relation to one another along a predetermined direction.