Abstract: A three valve cylinder head assembly includes a cylinder head mountable to an internal combustion engine. The cylinder head has a combustion chamber which has a sloped roof such that the combustion chamber has a wedge shape. Additionally, the cylinder head has an exhaust port and a pair of intake ports. An exhaust valve is movably integrated into the cylinder head for opening and closing the exhaust port. A pair of intake valves is each movably integrated into the cylinder head for opening and closing a respective one of the intake ports. A cam shaft is rotatably disposed on the cylinder head and the cam shaft engages the exhaust valve and each of the intake valves. The cam shaft sequentially opens the exhaust valve and each of the intake valves as the cam shaft rotates for supporting operation of the internal combustion engine.

Abstract: An apparatus for drilling a secondary borehole includes a whipstock assembly configured to be deployed in a primary borehole, the whipstock assembly including a whipstock ramp, and a drilling assembly connected to a borehole string. The drilling assembly includes a drill bit connected to an articulated string portion having a plurality of connected sections configured to move laterally with respect to one another, and the articulated string portion is configured to be diverted by the whipstock ramp in a lateral direction to initiate drilling of a secondary borehole from the primary borehole.

Abstract: An apparatus for drilling a secondary borehole includes a whipstock assembly configured to be deployed in a primary borehole, the whipstock assembly including a whipstock ramp, and a drilling assembly connected to a borehole string. The drilling assembly includes a drill bit connected to an articulated string portion having a plurality of connected sections configured to move laterally with respect to one another, and the articulated string portion is configured to be diverted by the whipstock ramp in a lateral direction to initiate drilling of a secondary borehole from the primary borehole.

Abstract: A unified spring pin assembly provides remote actuation of a spring pin by pulling a cable. The assembly includes a retainer with an apertured cap at the top which is attached by clinch deformation. Clinch means also joins a retainer of the spring pin sub-assembly to a sheet. A spring operates between the inside surface of the cap and the pin. The pin includes a bore which extends through its entire length to provide a passage for the cable which includes a ball end that pushes against the end of the pin when the cable is pulled.

Abstract: There is disclosed herein an additive composition including a compound of formula (III): wherein R1, R2, R3, R4, R5, R6 , R7, R8, and R9are independently selected from the group consisting of hydrogen, cyano, and hydrocarbyl groups comprising from about 1 to about 30 carbon atoms.

Abstract: There is disclosed a salt of a sulfur-containing, phosphorus-containing compound. There is also disclosed a method of making the salt.

Abstract: There is disclosed a composition including a boron-containing compound, and at least one of a sulfur-containing, phosphorus-containing compound and its salt. Methods of making and using the composition are also disclosed.

Abstract: A lubricating composition including a viscosity index improver and at least one of a sterically hindered sulfur-containing, phosphorus-containing compound, and its salt is disclosed.

Abstract: There is disclosed a salt of a sulfur-containing, phosphorus-containing compound. There is also disclosed a method of making the salt.

Abstract: A lubricating composition including an ester; a viscosity index improver; and at least one of a sterically hindered sulfur-containing, phosphorus-containing compound, and its salt.

Abstract: The present invention relates to polycomb genes and polypeptides isolated from Zea mays.

Abstract: The present invention relates to polycomb genes and polypeptides isolated from Zea mays.

Abstract: A fuel injector comprising a valve needle which is slidable within a bore, a surface associated with the valve needle defining, in part, a control chamber which communicates, through a restriction, with a supply passage. The fuel injector also includes an injection control valve controlling communication between the control chamber and a low pressure reservoir, and a drain valve controlling communication between the supply passage and the low pressure reservoir. The injection control valve and the drain valve include respective armatures moveable under the influence of a common electromagnetic actuator.

Abstract: An injector is disclosed which comprises a valve needle engageable with a seating. A spring urges the needle towards its seating, the spring engaging a spring abutment. A pressure backing member positioned within the injector is slidable relative to the spring abutment under the action of the pressure of fuel applied thereto. The pressure backing member is engageable with a surface associate with the needle to urge the needle towards its seating. The slidable pressure backing member reduces the pressure in the pumping chamber both prior to and after termination of the injection process. Also, the backing member maintains the pressure in a fuel supply passage of a low level to enhance the efficiency of the injector.

Abstract: An injector comprises a body, a valve needle slidable within the body and biassed into engagement with a seating by a spring, a fuel supply line for supplying fuel to thrust surfaces provided on the valve needle to apply a force on the valve needle acting against the action of the spring, a drain valve operable to control communication between the supply line and a low pressure drain, a needle control valve controlling the fuel pressure within a control chamber defined, in part, by a surface of the valve needle or a component carried thereby oriented such that when high pressure fuel is applied to the control chamber, a force is applied to the valve needle in a direction assisting the spring, wherein the drain valve and the needle control valve are controlled by an electromagnetic actuator arrangement including a single armature, the needle control valve and the surface of the valve needle or component carried thereby defining part of the control chamber being of dimensions such that the needle control valve

Abstract: A pump/injector includes a high pressure pump which delivers fuel to an inwardly opening fuel injection nozzle. Also provided is a spill valve which is connected to the pumping chamber of the pump and through which the pumping chamber is filled with fuel from a source by way of a first non-return valve. Connected intermediate the spill valve and the non-return valve is a branch passage to the spring chamber of the nozzle and the pressure in the spring chamber when the spill valve is opened to terminate delivery of fuel is controlled by a valve.

Abstract: A rotary distributor type fuel pumping apparatus has two pairs of plungers housed in respective diametrical bores which intersect each other. One of the plungers is longer than the remaining plungers conveniently by providing an extension at its inner end. The extension lies in the paths of movement of the remaining plungers so as to minimize the risk of damage to the plungers.

Abstract: A fuel pump for supplying fuel to an engine includes a rotary drive shaft (12) having an enlarged portion (18) through which the rotary part of the pump is driven. The pump also has an annular cam ring (17) which is angularly adjustable within the pump housing to vary the timing of fuel delivery. The pump includes a transducer (31) having pole pieces (33, 34) which are located in close proximity to the elongated portion (18) of the drive shaft. The pole pieces form part of a magnetic circuit including a magnet and the pole piece (33) and the adjacent surface or the portion (18) are shaped so that the flux in the magnetic circuit varies in a cyclic manner as the shaft rotates. The pole pieces and magnet are mounted on the cam ring (17) and the transducer includes a former (37) carried by the housing of the pump and upon which is wound a winding. The former surrounds a part of the magnetic circuit and the former and the part of the magnetic circuit are shaped so as to allow angular movement of the cam ring.

Abstract: A fluid control valve includes a valve member movable into engagement with a seating to prevent the flow of fluid through the valve, and an actuating member which is biased in one direction by a return spring and is moved against the action of the return spring by the armature of the actuator when the winding thereof is energized. The movement of the actuating element is transmitted to the valve member through an under travel spring which yields to allow continued movement of the actuating element when the valve member engages the seating.

Abstract: A fuel pumping apparatus for supplying fuel to an internal combustion engine includes a plunger reciprocable within a bore having an outlet connected to an injection nozzle. The plunger is reciprocated through a fixed stroke and a valve is provided to close a spill path to start delivery of fuel to the nozzle. A movable piston controlled by an electrically operable valve, is allowed to move to absorb the fuel displaced by the plunger to halt fuel delivery to the nozzle.