Abstract: A solar tracker having at least one post (7) for fixing to the ground at least one solar panel (8) that rotates by action of a drive, which has a rotation transmission support (1) on which the solar panel (8) is supported and which is coupled to the post (7) in such a way that it slides along a horizontal guide rail (2) fixed to the post (7) by a guide element (3), and the rotation transmission support (1) rolling on a rolling contact element (4) fixed to the post (7) to establish the rotation of the solar panel (8) in both directions.

Abstract: A bearing for fastening rotating shafts on support posts is provided, having a support (1) by which a clamp (3) is fastened on the support post (2), incorporating in the clamp (3) a ball joint (4.1) through which the rotating shaft (5) to be fastened passes, wherein the support (1) is made up of two complementary portions, which are axially attached facing one another, retaining the support post (2) between them, whereas on the assembly of the mentioned support (1) there is fixed a clamp (3) which houses internally a spherical ball joint (4.1) which determines a central opening through which the rotating shaft (5) to be fastened passes.

Abstract: A damping system of a solar tracker is provided, having at least one damper has a rod, an upper tie and a lower tie located at the end of the damper opposite the upper tie; where the upper tie is fixed by an upper support to a rotation shaft of the solar tracker, and where the lower tie is fixed by a lower support to a column of the solar tracker, so that with the rotation of the rotation shaft, the rod of the damper is caused to retract or extend, characterized in that the upper support has a lever comprising at least one end protruding from the rotation shaft with at least two securing points at which the upper tie of the damper is fixed by an upper shaft of the upper tie which is fixed at the at least two securing points of the lever.

Abstract: A bearing (1) for rotational shafts supported by support pillars, to establish the fastening between a rotational shaft (3) and support pillars (2), able to rotate freely, having a support (4) which is fixed to the support pillar (2), the support (4) being axially clamped between two component parts (6.1), (6.2) of a clamp (6), which determines a ring (7) that houses a ball joint (5), through which the rotational shaft (3) being fastened is arranged.

Abstract: A method for the recovery of lignin includes dissolving black liquor in solvent to form a mixture having a pH greater than or equal to about 12 to less than or equal to about 14. The pH of the mixture is then adjusted to greater than or equal to about 3 to less than or equal to about 7. The mixture is liquefacted, which includes increasing a temperature of the mixture to a target temperature, maintaining the target temperature for a period of time, and cooling the mixture to room temperature. Following liquefaction, the mixture is filtered to separate soluble and insoluble fractions of the mixture. The soluble fraction includes a lignin product having a polydispersity greater than or equal to about 1.78 to less than or equal to about 2.56.

Abstract: A solar tracker with orientable solar panels arranged in rows, having at least two rows of photovoltaic modules (1) carrying the solar panels (2), arranged on pillars (6), the solar panels (2) mounted on respective rotation axes (3) longitudinally associated with each other by rotation transmission (5), driven by at least one motor (4) establishing the movement of all the solar panels (2) from a single actuation point, the rows of photovoltaic modules (1) related to each other by at least one transmission bar (7), joined by universal joints (8), to respective rotation transmission (5), the drive motor (4) is coupled in longitudinal alignment with respect to a transverse transmission (12) that meshes with a rotation transmission (5) and with respect to which the universal joint (8) of one end of the corresponding transmission bar (7) is joined in longitudinal alignment on the other side.

Abstract: Baffle plate devices, exhaust gas aftertreatment apparatuses, and methods for controlling airflow in exhaust gas aftertreatment apparatuses are disclosed. In some examples, a baffle plate device is mounted within an outlet conduit via which the exhaust gas treated by an exhaust gas aftertreatment apparatus exits to the environment. The baffle plate device impacts the flow path of the treated exhaust gas within the outlet conduit to deflect a portion of the treated exhaust gas toward tips of sensors, which extend into the flow path toward the baffle plate device, in order to mitigate the impact of the recirculation region, improve the flow characteristics (e.g., rate, direction, and/or field) of the treated exhaust gas at the tips, and thereby improve the accuracy of the sensors. By improving sensor accuracy, the disclosed technology advantageously reduces false positives and improves engine performance and emissions compliance.

Abstract: A solar tracker with orientable solar panels arranged in rows, having at least two rows of photovoltaic modules (1) carrying the solar panels (2), arranged on pillars (6), the solar panels (2) mounted on respective rotation axes (3) longitudinally associated with each other by rotation transmission (5), driven by at least one motor (4) establishing the movement of all the solar panels (2) from a single actuation point, the rows of photovoltaic modules (1) related to each other by at least one transmission bar (7), joined by universal joints (8), to respective rotation transmission (5), the drive motor (4) is coupled in longitudinal alignment with respect to a transverse transmission (12) that meshes with a rotation transmission (5) and with respect to which the universal joint (8) of one end of the corresponding transmission bar (7) is joined in longitudinal alignment on the other side.

Abstract: A mixing device for mixing exhaust gas from a combustion engine of a vehicle with a solution for lowering the content of nitrogen oxides in the exhaust gas includes a casing with an exhaust inlet, an exhaust outlet, and a corner region in which an exhaust gas flow is diverted toward the exhaust outlet. The corner region has an opening for a dosing unit. A flow guide is arranged within the casing. The flow guide is configured to divide a total of the exhaust gas flow into a first exhaust gas stream and a second exhaust gas stream. A gap for the second exhaust gas stream is formed between the flow guide and a side wall of the casing. In the side wall the opening for the dosing unit is located. An end region of the flow guide is arranged upstream of the opening for the dosing unit.

Abstract: A mixing device for mixing exhaust gas from a combustion engine of a vehicle with a solution for lowering the content of nitrogen oxides in the exhaust gas includes a casing with an exhaust inlet, an exhaust outlet, and a corner region in which an exhaust gas flow is diverted toward the exhaust outlet. The corner region has an opening for a dosing unit. A flow guide is arranged within the casing. The flow guide is configured to divide a total of the exhaust gas flow into a first exhaust gas stream and a second exhaust gas stream. A gap for the second exhaust gas stream is formed between the flow guide and a side wall of the casing. In the side wall the opening for the dosing unit is located. An end region of the flow guide is arranged upstream of the opening for the dosing unit.

Abstract: An exhaust gas aftertreatment device for a combustion engine is disclosed. The device includes an exhaust pipe element having an exhaust duct through which exhaust gas of the combustion engine is flowable and a dosage device which opens into the exhaust duct at a feed point, where the dosage device is configured to introduce a reduction agent into the exhaust pipe element at the feed point. A baffle is arranged in the exhaust duct which divides the exhaust duct at least partially into a first passage and a second passage where the first and second passages have a respective inlet opening and are fluidically arranged in parallel. The feed point is disposed in the first passage and is shielded from the second passage by the baffle where the inlet opening of the second passage is disposed upstream of the feed point.

Abstract: An exhaust gas aftertreatment device for a combustion engine includes an exhaust gas guide element that includes a dosage device for introducing a reduction agent into the guide element at a feed point and at least one interference element arranged upstream of the feed point, that introduces turbulences into the exhaust gas flow that is intermixed with the reduction agent. The guide element also includes a first guide portion, through which exhaust gas flows in a first flow direction, and a second guide portion, through which exhaust gas flows in a second flow direction that is opposite to the first flow direction. The first and second guide portions are fluidically connected with each other via a third guide portion, which redirects the exhaust gas from the first flow direction into the second flow direction. The feed point and the interference element are arranged in the third guide portion.

Abstract: An exhaust gas aftertreatment device for a combustion engine is disclosed. The device includes an exhaust pipe element having an exhaust duct through which exhaust gas of the combustion engine is flowable and a dosage device which opens into the exhaust duct at a feed point, where the dosage device is configured to introduce a reduction agent into the exhaust pipe element at the feed point. A baffle is arranged in the exhaust duct which divides the exhaust duct at least partially into a first passage and a second passage where the first and second passages have a respective inlet opening and are fluidically arranged in parallel. The feed point is disposed in the first passage and is shielded from the second passage by the baffle where the inlet opening of the second passage is disposed upstream of the feed point.

Abstract: A mixing device for an exhaust system of a vehicle includes an inlet pipe, through which exhaust gas can enter a mixing chamber of the mixing device, and an outlet pipe for the exhaust gas to leave the mixing chamber. The inlet pipe and the outlet pipe form an angle. The mixing chamber includes an opening for an outlet of a dosage device, by means of which a reducing agent for exhaust gas aftertreatment is introducible into the mixing chamber. A baffle is arranged at a wall of the inlet pipe a baffle, which is induces a turbulence in the exhaust gas flow entering the mixing chamber.

Abstract: A mixing device for an exhaust system of a vehicle includes an inlet pipe, through which exhaust gas can enter a mixing chamber of the mixing device, and an outlet pipe for the exhaust gas to leave the mixing chamber. The inlet pipe and the outlet pipe form an angle. The mixing chamber includes an opening for an outlet of a dosage device, by means of which a reducing agent for exhaust gas aftertreatment is introducible into the mixing chamber. A baffle is arranged at a wall of the inlet pipe a baffle, which is induces a turbulence in the exhaust gas flow entering the mixing chamber.

Abstract: An exhaust gas aftertreatment device for a combustion engine includes an exhaust gas guide element that includes a dosage device for introducing a reduction agent into the guide element at a feed point and at least one interference element arranged upstream of the feed point, that introduces turbulences into the exhaust gas flow that is intermixed with the reduction agent. The guide element also includes a first guide portion, through which exhaust gas flows in a first flow direction, and a second guide portion, through which exhaust gas flows in a second flow direction that is opposite to the first flow direction. The first and second guide portions are fluidically connected with each other via a third guide portion, which redirects the exhaust gas from the first flow direction into the second flow direction. The feed point and the interference element are arranged in the third guide portion.

Abstract: A piezoelectric anion generator controlled by an integrated circuit IC, which includes an oscillation circuit, a frequency following-up circuit, an power amplification circuit, a step-up circuit, a voltage-doubling circuit, an ion discharging pin, a negative feedback voltage-stabilizing circuit and a bleeder circuit. Due to using the integrated circuit IC controlling circuit, it can provide the AC exciting voltage at the certain frequency to the piezoelectric ceramic transformer and has the functions of regulating the exciting voltage and the frequency following up. The piezoelectric ceramic transformer is used as the main AC step-up element to realize the AC high voltage output. After the voltage-doubling commutation the DC high voltage can be obtained, and the anion-discharging pin connected to it generates the high voltage electrical field, and then the gas is ionized to give out a lot of anions.

Abstract: The present invention discloses a piezoelectric anion generator controlled by an integrated circuit IC, which includes an oscillation circuit, a frequency following-up circuit, an power amplification circuit, a step-up circuit, a voltage-doubling circuit, an ion discharging pin, a negative feedback voltage-stabilizing circuit and a bleeder circuit. Due to using the integrated circuit IC controlling circuit, it can provide the AC exciting voltage at the certain frequency to the piezoelectric ceramic transformer and has the functions of regulating the exciting voltage and the frequency following up. The piezoelectric ceramic transformer is used as the main AC step-up element to realize the AC high voltage output. After the voltage-doubling commutation the DC high voltage can be obtained, and the anion-discharging pin connected to it generates the high voltage electrical field, and then the gas is ionized to give out a lot of anions.