摘要:
Provided herein are compounds of the formula: in which n is an integer equal to or greater than 1; R2 is selected from hydrogen and optionally substituted alkyl that is saturated or unsaturated, and branched or unbranched; and R1, R3, and R4, independently for each occurrence, are selected from optionally substituted alkyl that is saturated or unsaturated, and branched or unbranched, wherein compositions comprising the compounds are characterized by particular combinations of values for estolide number, kinematic viscosity, and pour point. Also provided are compositions containing the compounds and methods of making both the compounds and compositions thereof.
摘要:
Provided herein are compounds of the formula: in which n is an integer equal to or greater than 1; R2 is selected from hydrogen and optionally substituted alkyl that is saturated or unsaturated, and branched or unbranched; and R1, R3, and R4, independently for each occurrence, are selected from optionally substituted alkyl that is saturated or unsaturated, and branched or unbranched, wherein compositions comprising the compounds are characterized by particular combinations of values for estolide number, kinematic viscosity, and pour point. Also provided are compositions containing the compounds and methods of making both the compounds and compositions thereof.
摘要:
A valve assembly (2) includes a valve body (4) having a first section (6) and a second section (8). The first section (6) includes an inlet member (12) and an outlet member (13) and the second section (8) includes an inlet element (28) and an outlet element (29). The valve assembly (2) also includes a control system (44) arranged between the first section (6) and the second section (8) of the valve body (4). The control system (44) includes a flow direction member (48) that is selectively shifted between one of a full through flow mode and a bypass mode. When in the full through flow mode the flow direction member (48) passes a complete fluid flow from the inlet member (12) to the outlet element (29) and from the inlet element (28) to the outlet member (13), and when in the bypass mode the flow direction member passes the fluid flow from the inlet member (12) to the outlet member (13).
摘要:
A control valve has a pressure chamber 24 causing a pressure to act on a valve element 21 of a check valve 20, an oil chamber 39 around the valve 21, a slot 40 formed in the valve element 21 and interconnecting the oil chamber 39 and the pressure chamber 24with each other and, a control valve 25 connected directly to a divergence portion 17 and the oil chamber 39 and capable of permitting or cutting off communication between the divergence portion 17 and the oil chamber 39 and changing an opening degree of the communication, an intra-valve-element passage 42, a slot 41 formed in an outer peripheral wall of the valve element 21 and communicating the passage 42 and the chamber 39 with each other, and a spring-return auxiliary check valve 43 for allowing pressure oil to flow from a supply passage 15 into the intra-valve-element passage 42.
摘要:
The present invention relates to a sanitary fitting having a fitting house and having a control cartridge which is arranged in the latter. The control cartridge has a control shank which is pivotably mounted in the control cartridge. On the control shank is displaceably mounted an actuating lever which can be pivoted up and down between a closed position and an open position in order thus to control the water flow. Furthermore, a plate is mounted at one end on the guide element and at the other end on an axis of rotation which is fixedly arranged with respect to the pivot axis and which is parallel thereto. By means of this arrangement, during the pivoting of the actuating lever from the closed position in the direction toward the open position, said actuating lever is also moved in the direction away from the control shank and, in the direction of the cartridge axis, away from the fitting housing.
摘要:
A three-port flow control valve comprising a valve body having two opposite-facing valve seats disposed along a central bore terminating in an exhaust port. A supply port communicates with the first valve seat, and a common port communicates with the second valve seat. A pintle shaft connected to an actuating linear solenoid extends along the central bore. A first valve head actuated by the pintle shaft mates with the first valve seat. A second valve head disposed colinearly with the pintle shaft mates with the second valve seat. Opening of the first valve closes the second valve and vice versa. While the solenoid is de-energized the supply pressure keeps the first valve closed. A spring may be disposed between the second valve head and the exhaust port to urge the second valve head to close with the second valve seat.
摘要:
The invention relates to a multi-way valve device, particularly for household appliances, comprises a hollow body (11) and an axially movable piston (12) mounted inside this hollow body. The body (11) is provided with at least one inlet orifice (15) for a liquid solvent and at least two outlet orifices (16, 17) for this solvent. The movable piston (12) is coupled with an axially movable measuring stem (31) of a linear measuring element (30) of a solid substance, this measuring stem (31) being actuated by a mechanical actuator (32) and associated with a return spring (35). This movable piston (12) is arranged so as to move in one direction, freely, or against the pressure of the return spring (35), under the effect of the pressure of the liquid solvent applied at the inlet orifice (15) to this movable piston (12), and in the opposite direction, under the effect of the pressure applied to the measuring stem (31) by the return spring (35).
摘要:
A faucet includes a valve body having a cartridge receiving bore. A valve cartridge is sealingly disposed in the bore. The valve cartridge includes a rotatable stem. An arc-shaped slot is created in the valve cartridge. A lever assembly having a single handle is connected to the stem and operates when rotated in a first direction to permit cold water flow through the valve body, and after being depressed can be rotated in an opposite second direction to permit hot water flow through the valve body. A torsion spring has a first post received in the elongated slot translatable between opposed ends of the elongated slot, and a second post received in a lever assembly aperture preventing second post translation. A biasing force of the torsion spring biases the lever assembly toward a valve closed position only when the lever assembly is rotated in the second direction.
摘要:
A valve component for a faucet includes a substrate comprising a base material and a strengthening layer provided above the substrate in an amount sufficient to improve abrasion resistance of the substrate, the strengthening layer comprising tantalum. A layer including amorphous diamond is provided above the strengthening layer. The amorphous diamond has sp3 bonding of at least about 40%, a hardness of at least about 45 GPa, and an elastic modulus of at least about 400 GPa.