1. A method of making a medicinal inhalation device or a component of a medicinal inhalation device comprising a step of: applying to at least a portion of a surface of the device or the component, respectively, a composition comprising a multifunctional polyfluoropolyether silane.
2. A method according to claim 1, wherein the polyfluoropolyether segment of the polyfluoropolyether silane is not linked to the functional silane groups via a functionality that includes nitrogen-silicon bond or a sulfur-silicon bond.
3. A method according to claim 1 or 2, wherein the polyfluoropolyether segment of the polyfluoropolyether silane is linked to the functional silane groups via a functionality that includes a carbon-silicon bond.
4. A method according to claim 3, wherein the polyfluoropolyether segment of the polyfluoropolyether silane is linked to the functional silane groups via a \u2014C(R)2\u2014Si functionality where R is independently hydrogen or a C1-4 alkyl group.
5. A method according to claim 4, wherein the polyfluoropolyether segment of the polyfluoropolyether silane is linked to the functional silane groups via a \u2014(CR2)k\u2014C(R)2\u2014Si functionality where k is at least 2 and where R is independently hydrogen or a C1-4 alkyl group.
6. A method according to claim 1, wherein the polyfluoropolyether segment of the polyfluoropolyether is a perfluorinated polyfluoropolyether segment.
7. A method according to claim 6, wherein in the repeating units of the perfluorinated polyfluoropolyether segment the number of carbon atoms in sequence is at most 6, in particular at most 4, more particularly at most 3, and most particularly at most 2.
8. A method according to claim 1, wherein the multifunctional polyfluoropolyether silane is a difunctional polyfluoropolyether silane.
9. A method according to claim 1, wherein the weight average molecular weight of the polyfluoropolyether segment is about 1000 or higher, in particular about 1800 or higher.
10. A method according to claim 1 or 9, wherein the weight average molecular weight of the polyfluoropolyether segment is about 6000 or less, in particular about 4000 or less.
11. A method according to claim 1, wherein the composition is applied to said surface, such that polyfluoropolyether-containing coating provided on said surface has a thickness of at most about 300 nm.
12. A method according to claim 1 or 11, wherein the composition is applied to said surface, such that polyfluoropolyether-containing coating provided on said surface has a thickness of at least about 20 nm.
13. A medicinal inhalation device or a component of a medicinal inhalation device made according to claim 1.
14. A medicinal inhalation device or a component of a medicinal inhalation device comprising a polyfluoropolyether-containing coating bonded to at least a portion of a surface of the device or the component, respectively, said polyfluorpolyether-containing coating comprising a plurality of cross-linked, multifunctional polyfluoropolyether-silane entities and said polyfluorpolyether-containing coating sharing at least one covalent bond with said surface.
15. A device or a component according to claim 13 or 14, where said medicinal inhalation device is a metered dose inhaler or a dry powder inhaler.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A vehicle wheel service apparatus, in particular a wheel balancer or a tyre changer, comprising:
a mounting device arranged to rotatably receive a wheeltyre assembly comprising a tyre and a wheel rim,
a load means for applying a predetermined load onto a peripheral surface of the wheeltyre assembly,
first driving means arranged to move the mounting device and the load means relative to each other so that the peripheral surface of the wheeltyre assembly (14) comes into contact with the load means,
a control device arranged to control the movement of the mounting device and the load means relative to each other, and arranged to control the predetermined load applied by the load means,
second driving means arranged to drive the mounting device andor the load means for rotating the wheeltyre assembly at least while it is in contact with the load means,
a sensor device arranged to determine forces acting between the peripheral surface of the wheeltyre assembly and the load means, wherein the forces comprise at least a first force (Fz) acting in a radial direction of the wheeltyre assembly and a second force (Fx) acting in a circumferential direction of the wheeltyre assembly, and
an evaluation device arranged to determine a rolling resistance coefficient of the tyre on the basis of the first and second forces (Fz, Fx) determined by the sensor device.
2. The apparatus according to claim 1,
further comprising at least one first force sensor, preferably a load cell, arranged to detect the first force (Fz) at a support element of the mounting device or at a support element of the load means.
3. The apparatus according to claim 1,
wherein the load means comprises a load belt apparatus.
4. The apparatus according to claim 1,
wherein the load means comprises a load roller.
5. The apparatus according to claim 1,
further comprising at least one second force sensor, preferably a load cell, arranged to detect the second force (Fx) at a support element of the mounting device or at a support element of the load means.
6. The apparatus according to claim 1,
further comprising a torque detecting means detecting a driving torque of the second driving means; and
wherein the sensor device is further arranged to determine the second force (Fx) on the basis of the detected driving torque.
7. The apparatus according to claim 1,
further comprising a power detecting means detecting a driving power of the second driving means; and
wherein the sensor device is further arranged to determine the second force (Fx) on the basis of the detected driving power.
8. The apparatus according to claim 1,
further comprising a rotary deceleration detecting means detecting a rotary deceleration of the idling rotary system including the tyrewheel assembly and the load means; and
the sensor device is further arranged to determine the second force on the basis of the detected rotary deceleration and a moment of inertia of the idling rotary system.
9. The apparatus according to claim 1,
wherein the control device is further arranged to perform a calibrating procedure prior to a measuring run.
10. The apparatus according to claim 9,
wherein the calibrating procedure comprises deactivating the second driving means, applying the predetermined load onto the peripheral surface of the wheeltyre assembly by the load means and setting a force measured by the second force sensor as a reference value, and
the measuring run comprises activating the second driving means to rotate the wheeltyre assembly with a constant speed, and determining the second force (Fx) by subtracting the reference value determined during the calibrating procedure from a force currently measured by the second force sensor.
11. The apparatus according to claim 1,
wherein the rolling resistance coefficient is determined for different rotary speeds of the wheeltyre assembly.
12. The apparatus according to claim 1,
wherein the evaluation device is further arranged to receive specific tyre data of the tyre, wherein the specific tyre data comprises at least one of an official fuel efficiency classification provided by the tyre manufacturer of the tyre, and an elapsed operation time of the tyre; and
wherein the evaluation device is further arranged to provide at least one of the following evaluation results, based on the specific tyre data and the determined rolling resistance coefficient of the tyre:
a current fuel efficiency classification of the tyre,
a comparison of the current fuel efficiency classification with the official fuel efficiency classification of the tyre, and
an estimation of a remaining operation time of the tyre up to the degradation to a lower fuel efficiency classification.
13. The apparatus according to claim 12,
wherein the evaluation device is further arranged to receive specific vehicle data of the vehicle on which the tyre is mounted, wherein the specific vehicle data comprises at least one of a vehicle type, a vehicle model, a vehicle weight, and a specific fuel consumption of the vehicle; and
wherein the evaluation device is further arranged to provide at least one of the following evaluation results, based on the specific vehicle data, the specific tyre data and the determined rolling resistance coefficient of the tyre:
an estimation of a future specific fuel consumption of the combination of the vehicle and the tyre, and
a difference in specific fuel consumption of the combination of the vehicle and the tyre between the current fuel efficiency classification and the official fuel efficiency classification of the tyre.
14. The apparatus according to claim 1,
wherein the apparatus further comprises printing means for printing at least one of the determined rolling resistance coefficient and the evaluation results of the tyre.
15. The apparatus according to claim 1,
wherein the apparatus further comprises means for determining at least one parameter of a group comprising an ambient temperature, a temperature of the tyre, a vehicle type, the predetermined load applied to the peripheral surface of the tyre by the load means, a rolling radius (rL) of the tyre, a tyre inflation pressure, a diameter of the load roller, a rotary speed of the tyrewheel assembly during measurement, a texture of the contact surface of the load means, an aerodynamic drag resistance of the tyrewheel assembly andor the load means; and
wherein the evaluation device is further arranged to correct the determined rolling resistance coefficient on the basis of the determined at least one parameter.