Movable Fulcrum (e.g., Slot And Pin) Patents (Class 123/374)
-
Patent number: 11181021Abstract: An oil mist separator includes a case including an inflow port into which blow-by gas flows and an outflow port out of which blow-by gas flows, a separation unit arranged in the case, and an oil discharge unit arranged at a lower part of the case. The oil mist separator is configured to separate oil mist contained in blow-by gas by the separation unit and discharge oil separated by the separation unit to an outside of the case through the oil discharge unit. The oil discharge unit includes a discharge port through which oil is discharged to the outside of the case and a constriction arranged above the discharge port. The constriction is partially decreased in a small cross-sectional flow area.Type: GrantFiled: January 22, 2019Date of Patent: November 23, 2021Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHAInventors: Naritsune Miyanaga, Hideto Morishita
-
Patent number: 10815911Abstract: There is provided an engine stopping device including a stopping solenoid, where an operating shaft, interlocked to a control rack of a fuel injection pump, is rotatably supported by an engine case in a pass-through manner. The control rack is forcibly movable to a stopping position by an action of the stopping solenoid on an operation arm provided for a projecting portion of the operating shaft in an integrally rotatable manner. An extending-retracting rod of the stopping solenoid and the operation arm are interlocked by fitting engagement between a pin provided for the extending-retracting rod and a cut-out portion of the operation arm. The cut-out portion is configured in a shape elongated along a direction perpendicular to a movement trajectory of the extending-retracting rod.Type: GrantFiled: November 30, 2018Date of Patent: October 27, 2020Assignee: KUBOTA CORPORATIONInventors: Akira Tanaka, Hiroki Oso, Yoshinori Tanaka, Hideyuki Koyama, Takahiro Yamazaki, Nobuyoshi Okada
-
Patent number: 10578083Abstract: A fuel pump assembly for pressurizing fuel such as dimethyl ether (DME). The fuel pump assembly includes a plunger assembly and a pump block defining a pumping chamber and a plunger assembly cavity in communication with the pumping chamber. The plunger assembly is movable at least partially in the plunger assembly cavity towards and from the pumping chamber. The fuel pump assembly includes a metering valve and a suction channel located between the metering valve and the pumping chamber in an intended direction of flow of the fuel, wherein the fuel pump assembly comprises a leakage return conduit, with a first leakage return conduit opening in fluid communication with said plunger assembly cavity, adapted to return fuel that has leaked from the pumping chamber. The leakage return conduit includes a second leakage return conduit opening located in the suction channel.Type: GrantFiled: May 4, 2016Date of Patent: March 3, 2020Assignee: VOLVO TRUCK CORPORATIONInventor: Sergi Yudanov
-
Patent number: 7900739Abstract: The control system 10 of the first preferred embodiment includes a user interface 12 with a first control 14 that designates a maximum bound of a sub-range of engine speeds and a second control 16 that designates a minimum bound of a sub-range of engine speeds. The control system 10 of the first preferred embodiment also includes a processor 18 connected to the engine and to the user interface 12 that functions to, based on the required power output of the vehicle system, select a discrete engine speed from the sub-range of engine speeds. The control system 10 of the first preferred embodiment was designed for controlling engine speed of a vehicle system having an engine and a required power output, but may be used in any suitable environment.Type: GrantFiled: December 12, 2006Date of Patent: March 8, 2011Assignee: CNH America LLCInventor: Garth H. Bulgrien
-
Patent number: 6901909Abstract: The centrifugal governor ensures that the governor lever (3) can apply a synthesized tensile force (STF) of the tensile forces (GS) of the main spring (4) and the tensile force (IS) of the idling spring (5) to the fuel adjuster (2) of the fuel pump (1) so as to increase the supply of fuel, and cause the governor weight (6) to decrease the fuel amount by pushing down the fuel adjuster (2), so that a disequilibrium between the synthetic tensile force (STF) of the two springs (4), (5) and the governor force (GF) is utilized for increasing or decreasing the supply of fuel through the operation of the fuel adjuster (2), and that the idling spring (5) which is constituted as a tension coiled spring spring-biases the governor lever (3) in the direction of increasing the supply of the fuel both in the non-load set and in the low-load set (LL), and negates the spring-biasing both in the high-load set (LH) and in the full-load set (4/4).Type: GrantFiled: September 15, 2003Date of Patent: June 7, 2005Assignee: Kubota CorporationInventors: Takahiro Kajihara, Shinkichi Iwasaki
-
Patent number: 6481412Abstract: A target block structure of an electronic dartboard includes a target block made of hard material having a body whose outer portion is integrally formed with a soft cushioning structure and cushioning ribs. Thus, when the target block is hit by the dart to displace, the soft cushioning structure may reduce the noise due to friction and hitting. In addition, the bottom of the body is provided with a hard trigger column whose end portion is formed with a soft column leg. The column leg has an outside formed with an annular wall and an inside formed with a trigger point. The annular wall may be deformed by an impact force for cushioning the impact force, thereby preventing incurring noise.Type: GrantFiled: May 2, 2001Date of Patent: November 19, 2002Inventor: Chih-Hao Yiu
-
Patent number: 5957101Abstract: An internal combustion engine includes a mechanism for releasing compression from the cylinder during starting. That mechanism has an actuator attached to the engine camshaft for sliding between first and second positions. In first position the actuator is engaged by a lifter to open the engine exhaust valve during the compression phase of the combustion cycle. At the second position, the valve lifter does not engage the actuator and the exhaust valve remains closed during the compression phase. A weight lever is pivotally attached to the camshaft and drives the actuator between the first and second positions in response to engine speed. At slow speeds occurring while before the engine starts, the actuator is held the first position so that the compression is relieved. After the engine starts, centrifugal force causes the weight lever to drive the actuator into the second position at which normal compression occurs.Type: GrantFiled: July 9, 1997Date of Patent: September 28, 1999Assignee: Kohler Co.Inventors: Gregory E. Schmitz, Jerry R. Reineking, James P. Burke
-
Patent number: 5226795Abstract: A fuel injection pump for internal combustion engines is proposed, having a reciprocating piston that defines a pump work chamber in a pump cylinder and that on its jacket face has a control recess communicating with the pump work chamber, and a control slide is displaceable on the pump piston in order to control the high-pressure pumping. This control slide, which cooperates with the control recess on the pump piston, is actuated via an adjusting lever disposed on an adjusting lever shaft; the adjusting lever shaft is moved by an adjusting lever mounted on it outside the housing. This adjusting lever can be pivoted between two stops; according to the invention, these stops are disposed on a base plate that simultaneously acts as a flange of the adjusting lever shaft bearing bush and that can be moved relative to the pump housing via oblong slots in order to adjust the stops.Type: GrantFiled: October 28, 1992Date of Patent: July 13, 1993Assignee: Robert Bosch GmbHInventor: Manfred Kraemer
-
Patent number: 5027767Abstract: A fuel injection pump including a housing having an adjustable coupling device on the outside of the housing by which the speed governor can be adjusted from outside the housing of the fuel injection pump. By use of the adjustable coupling device on the outside of the housing, it is possible to eliminate production-oriented parts tolerances by means of adjustments of the speed governor, without tampering with its internal conditions.Type: GrantFiled: August 28, 1989Date of Patent: July 2, 1991Assignee: Robert Bosch GmbHInventors: Guenter Bofinger, Claus Maier
-
Patent number: 4903661Abstract: A fuel pumping apparatus for supplying fuel to an engine has a high pressure pump which includes a component movable to determine the maximum amount of fuel which can be supplied to the engine. The component is biased by a spring to a minimum fuel position and to adjust the setting of the component there is provided a three armed lever one arm of which is coupled to the component. The other two arms are coupled to engine operating parameter responsive devices. In the example the device is a piston which is spring loaded and is responsive to the output pressure of a low pressure fuel pump and the device includes a diaphragm which is subjected to the air inlet manifold pressure.Type: GrantFiled: August 3, 1988Date of Patent: February 27, 1990Assignee: Lucas Industries Public Limited CompanyInventor: Robert H. Scott
-
Patent number: 4802451Abstract: A mechanical governor for a fuel injection pump of an internal combustion engine. A governor control lever is mounted on a casing of the governor for pivotal movement about a pivotal axis between first and second extreme angular positions corresponding respectively to a release position and a maximum depression position of an accelerator pedal. A main spring biases the control lever so at to gradually increases a reaction force acting thereupon in proportion to pivotal movement of the control lever from the first extreme angular position toward the second extreme angular position. A reaction force adjusting spring has one end associated with the control lever to adjust the reaction force acting thereupon due to the main spring.Type: GrantFiled: June 22, 1987Date of Patent: February 7, 1989Assignee: Diesel Kiki Co., Ltd.Inventor: Masaatsu Takahashi
-
Patent number: 4754734Abstract: An injection quantity increasing mechanism for a governor in a fuel injection pump which is actuated at engine starting includes a guide lever and a torque cam both rotatable in accordance with the rpm of an engine, a floating lever swingably connected to the guide lever, a control lever for controlling the engine rpm and a control rack for controlling the fuel injection quantity both associated with the floating lever, and a stop device lever adapted to be displaced in a direction which decreases the fuel injection quantity and is associated with the control rack.Type: GrantFiled: September 4, 1986Date of Patent: July 5, 1988Assignee: Diesel Kiki Co., Ltd.Inventor: Masayoshi Ohkoshi
-
Patent number: 4750463Abstract: An electronically regulated fuel injection system for an internal combustion engine with a switchable safety and emergency driving device has a mechanical coupling which mechanically couples the accelerator pedal to the regulator. This coupling operatively interferes with a mechanical connection between a controller and the final control element that determines the quantity of fuel to be injected, after a fault signal has been outputted by a signal processing unit to a switchover element, which switches over control of the final control element to the simple regulator.Type: GrantFiled: January 20, 1987Date of Patent: June 14, 1988Assignee: Daimler-Benz AktiengesellschaftInventors: Wolfgang Peter, Frank Thoma
-
Patent number: 4664079Abstract: In a fuel injection system for an internal combustion engine, a control lever shaft interlocked with a governor spring is supported by a pump housing of a fuel injection pump with one and the other ends respectively located interiorly and exteriorly of the pump housing. A control lever for controlling the fuel injection amount is fixedly mounted on the other end of the control lever shaft. A cancel lever connected to an accelerator pedal through an accelerator rod is freely fitted on the other end of the control lever shaft. The control lever and the cancel lever are disposed to abut against each other on a leading side of the cancel lever with reference to the angular movement thereof in a fuel decreasing direction. A cancel spring is connected between the control lever and the cancel lever to allow them to be angularly moved together. A dash pot for restricting the speed of movement of the control lever in a fuel increasing direction is arranged exteriorly of the pump housing.Type: GrantFiled: September 8, 1986Date of Patent: May 12, 1987Assignee: Diesel Kiki Co., Ltd.Inventors: Toru Sakuranaka, Yutaka Tajima, Hisashi Nakamura
-
Patent number: 4621601Abstract: A fuel injection pump for internal combustion engines having an arbitrarily actuatable adjustment lever, the movement of which lever is fed as a set-point variable to an rpm governor for the purpose of fuel metering. Between the arbitrary adjustment and its intervention with the rpm governor, for example on the governor spring, there is a coupling device which has a nonlinear relationship between the arbitrary adjustment and the degree of intervention with the rpm governor. This coupling device for generating the nonlinear relationship has a unilateral lever supported in a stationary manner and having an oblong slot in its longitudinal axis, in which slot a guide element, attached to an adjusting device such as an auxiliary adjusting lever to arranged to slide. The arbitrary adjustment engages the adjusting device, and the lever acts upon the rpm governor.Type: GrantFiled: April 2, 1985Date of Patent: November 11, 1986Assignee: Robert Bosch GmbHInventor: Roland Kupzik
-
Patent number: 4604978Abstract: A speed governor for fuel injection pumps is proposed having a guide shaft guided in a cam plate to serve as the pivot shaft for a governor lever connecting an adjusting member and a supply quantity control member. The guide shaft is adjustable and guided appropriately by means of an adjusting lever so far as to form a variable-speed governor adapted to varying the full-load and maximum rpm. The cam plate is adjustable by a device by means of an operating parameter acting independently of the speed governor, for instance, the engagement of a cruising or overdrive gear in a manual transmission. Upon rotation of the cam plate, the guide shaft is displaced by a movement-coupling member into a position in which a minimum idling rpm is assured.Type: GrantFiled: March 19, 1985Date of Patent: August 12, 1986Assignee: Robert Bosch GmbHInventors: Sytze Brouwers, Werner Bruhmann, Heinz Kuschmierz
-
Patent number: 4586470Abstract: A centrifugal speed governor, functioning as a minimum-maximum-speed governor, includes an adjusting member which is pivotable for adjusting the supply quantity, and the governor rod of the associated injection pump is adjustable via an intermediate lever by means of the adjusting member and a governor spring which is displaceable counter to the force of associated governor springs. The travel of the governor rod is limited in the direction of an increasing supply quantity by a governor rod stop including a starting spring. With the adjusting member resting on an end stop, the governor rod is pressed away from a basic test position (P) into its full-load position (V), and the differential travel (.DELTA.R) thereby resulting is absorbed by an accumulator in the governor linkage, preferably in the governor sleeve. The deflection stroke (A) of the accumulator is only slightly longer than that required to compensate for the differential travel (.DELTA.R).Type: GrantFiled: April 16, 1985Date of Patent: May 6, 1986Assignee: Robert Bosch GmbHInventors: Horst Klinger, Werner Lehmann, Michael Zeuch
-
Patent number: 4498437Abstract: A centrifugal governor ensures a positive engine starting operation as well as a smoke control in the low engine speed range and a usual fuel injection control responsive to an increase in engine speed. A control rod with a rack is operatively connected with a floating lever through a spring biased piston and cylinder assembly, so that the control rod can be freely moved to its maximum fuel injection position during engine starting without being effected by a smoke limiter, which may be associated with the governor for a smoke control purpose. A unique lever mechanism is operable to move the control rod to the maximum fuel injection position during engine starting but, after a predetermined engine speed is reached, yields to a movement of the control rod in a fuel decreasing direction caused by the floating lever through the piston and cylinder assembly.Type: GrantFiled: December 6, 1982Date of Patent: February 12, 1985Assignee: Diesel Kiki Company, Ltd.Inventors: Masayoshi Ohkoshi, Yoshiro Suzuno
-
Patent number: 4497295Abstract: The governor includes a force transmission lever subject to the prestressing force of a main governor spring, which lever the governor sleeve comes into operative contact after traversing an idling sleeve path a, and a leaf spring acting as the idling spring. The leaf spring is supported between its two ends on a curved rolloff path, determining its effective spring length, of a support bearing, the operative position of which is adjustable toward the leaf spring in accordance with the pivot angle (.beta.) of an adjusting member by means of an adjusting cam actuable by the adjusting member such as to increase the prestressing force of the leaf spring. The adjusting cam is supported on the force transmission lever in order to prevent influencing the maximum engine speed.Type: GrantFiled: November 15, 1983Date of Patent: February 5, 1985Assignee: Robert Bosch GmbHInventor: Werner Bruhmann
-
Patent number: 4463720Abstract: A flyweight governor comprising first and second sets of flyweights disposed pivotably on a flyweight support, the flyweights of the first set are arrested by stops after having traversed an idle speed angle of traverse (.alpha..sub.LL), on which stops the flyweights of said second set rest only after having traversed the total angle of traverse (.alpha..sub.max). The flyweight masses of the first set of flyweights acting only in the idle speed control have, in their position of rest, an outer contour which is, in comparison to said second set of flyweights, displaced further outwardly with an inclination angle (.beta..sub.LL) to the rotational axis (A) corresponding to the idle speed angle of traverse (.alpha..sub.LL).Type: GrantFiled: September 28, 1982Date of Patent: August 7, 1984Assignee: Robert Bosch GmbHInventor: Ernst Ritter
-
Patent number: 4461256Abstract: The device has a scanning member, adjustable in relation to the rpm, for the determination of the full load injection amount and a support attachable to a base and holding a contour disk in a predetermined position, the latter serving as a stop for the scanning member. The support can be attached with the aid of a holding element in such a way, that the first adjustment position of the support equipped with the contour disk is permanently fixed. Even after the support has been removed, its renewed fixing in the first adjustment position is assured (FIG. 3).Type: GrantFiled: August 25, 1982Date of Patent: July 24, 1984Assignee: Robert Bosch GmbHInventors: Werner Lehmann, Sieghart Maier, Reinhard Schwartz
-
Patent number: 4459956Abstract: A centrifugal governor for adjusting the fuel delivery to an internal combustion engine of the Diesel type is disclosed, wherein centrifugal masses slide along a tubular supporting member and act upon a sleeve, a spring and a slider to govern, through an eccentric-controlled adjustment lever, the rate of flow of the fuel injected into the engine, to reproduce, at will any desired law of variation of the fuel delivery according to the individual requirements of each particular engine.Type: GrantFiled: August 19, 1982Date of Patent: July 17, 1984Assignee: SPICA S.p.A.Inventors: Manuel Roca-Nierga, Italo Branchetti, Mauro Forapianti
-
Patent number: 4453520Abstract: A liquid fuel pumping apparatus includes a centrifugal weight mechanism 14 which is coupled to a fuel control member through a lever. A spring is provided to oppose the action of the weight mechanism and this is coupled through a lever having an adjustable pivot point, to the lever through a closure member carried about an axially movable member coupled to the weight mechanism. A drilling in the member is supplied with liquid under pressure at a restricted rate. The pressure of liquid acts upon the closure member to urge the closure member relative to the member so as to uncover a groove communicating with the drilling. The pressure of liquid in the drilling is controlled so that it varies in accordance with the square of the speed and in the event that the pressure fails the closure member and the axially movable member will move relative to each other to cause a reduction in the fuel supplied by the apparatus.Type: GrantFiled: June 23, 1981Date of Patent: June 12, 1984Assignee: Lucas Industries LimitedInventors: Charles T. MacFarlane, Graham L. Adams
-
Patent number: 4432704Abstract: A mechanical speed regulator for an injection pump which has centrifugal weights on its drive shaft. The centrifugal weights shift the regulator or control pin axially against the force of a starting supplementary feed spring, whereby in operation the control pin additionally is balanced or equalized with a control spring. The control spring is arranged at one end and the control pin is arranged at another end of a beam arranged to swing freely. A suspension of the beam is shiftable in the longitudinal direction of the beam. The suspension of the beam is arranged and embodied practically free of friction, for instance point journalling being provided therewith. The control pin at its free end provides a knife edge which fits into a correspondingly embodied depression or recess in the beam, and the beam has a conical tip elevation for receiving the control spring. An adjustable abutment is provided in the form of a set screw on the beam in the axial extension of the control spring.Type: GrantFiled: December 3, 1981Date of Patent: February 21, 1984Assignee: Klockner-Humboldt-Deutz AktiengesellschaftInventor: Max Matzen
-
Patent number: 4343276Abstract: An add-on feedback control unit is connected to an existing mechanical governor for a turbocharged engine to control fuel flow to the engine in response to engine load and thereby maintain an adjustable low speed droop for the engine. The preload on the governor control spring is determined by a movable stop, the position of which is controlled by a pivotally mounted reset lever. A control arm is connected to the reset lever at a selected position relative to the pivotal axis of the latter. The control unit includes a housing having an interior chamber separated into first and second subchambers by a diaphragm disposed therein. One side of the diaphragm is subjected to the turbocharger boost air pressure of the engine. The control arm includes a shaft connected to the opposite side of the diaphragm and having an outwardly projecting end portion connected to the reset lever at the selected position to provide feedback in response to engine load.Type: GrantFiled: January 16, 1981Date of Patent: August 10, 1982Assignee: Cummins Engine Company, Inc.Inventors: Salim A. Jaliwala, Eric Day
-
Patent number: 4340020Abstract: A governor mechanism in or for a fuel injection pump includes a centrifugal weight mechanism which effects movement of a member against the action of a preloaded resilient means. The member is coupled to one end of a lever the other end being coupled to a fuel quantity control member of the pump. The lever is mounted on an adjustable pivot. Means is provided to reduce the preload of the resilient means and to position the pivot to ensure a supply of fuel by the pump when it is required that the engine should operate at a reduced speed with a varying load.Type: GrantFiled: October 29, 1979Date of Patent: July 20, 1982Assignee: Lucas Industries LimitedInventors: Laurence C. Caldicott, Alastair D. Cameron, Georgs N. Felton
-
Patent number: 4308833Abstract: A centrifugal governor is proposed for fuel injected internal combustion engines, which preferably functions as an idling and a final rpm governor. Preferably, the governor is provided with a cam-guided adaptor apparatus whose influence on the governor movement is removed in order to increase the work capacity of the governor during idling operation. The centrifugal rpm governor includes an intermediate lever connecting a governor sleeve with the control rod of an injection pump. The intermediate lever is additionally actuatable by a setting lever, and an adaptor lever system. The adaptor lever system substantially comprises an adaptor lever disposed approximately parallel to the intermediate lever and cooperating therewith and actuatable by the governor sleeve. The adaptor lever has at its outermost end a cam follower, which is guided on a cam surface of a stop cam for the purpose of limiting the full-load supply quantity.Type: GrantFiled: September 28, 1979Date of Patent: January 5, 1982Assignee: Nippondenso Co. Ltd.Inventor: Niro Makino
-
Patent number: 4286558Abstract: A centrifugal governor for fuel injected internal combustion engines is proposed, especially an idling and final rpm governor for Diesel vehicle engines, in which the sudden emission of smoke upon starting of a heavily loaded engine is prevented. The improved governor comprises an additional idling spring secured on a force transmitting lever which is acted upon by the main control spring and by means of which additional idling spring in the idling setting of the service lever the restoring force of the idling spring on a portion (b) of the idling sleeve path (a) is amplified. This force of the additional idling spring is, however, made at least partially ineffective by a thrust member when the service lever is pivoted into the full-load position.Type: GrantFiled: June 21, 1979Date of Patent: September 1, 1981Assignee: Robert Bosch GmbHInventors: Ilija Djordjevic, Ernst Ritter, Thomas Lang
-
Patent number: 4281630Abstract: A centrifugal rpm governor for internal combustion engines in which the initial stressing of an adaptation spring is adjustable in a continuously variable manner in the installed state and without changing the spring stroke (b) determining the adaptation path. The governor includes an adaptation device disposed in the force transmitting path between a control member which adjusts in accordance with rpm and a force transmitting member subject to the force of the governor spring, which adaptation device includes in a recessed longitudinal bore, a stop bolt and an adaptation spring supported at one end by a ring screwed onto a threaded portion of the stop bolt, the ring being guided for axial displacement and provided with rotational securing means in the longitudinal bore so that by rotating the stop bolt a variation of the initial stressing of the adaptation spring in a continuously variable manner is possible without affecting the preset spring stroke (b).Type: GrantFiled: July 20, 1979Date of Patent: August 4, 1981Assignee: Robert Bosch GmbHInventors: Werner Bruhmann, Reinhard Schwartz, Darsten Hummel
-
Patent number: 4258675Abstract: A regulator apparatus controlled by spring tension, such as a centrifugal governor for internal combustion engines wherein the spring characteristic of the regulator spring remains unchanged during operation and a regulator effectiveness which remains the same over a long period of time is attainable and which includes at least one compression spring acting as the regulator spring and inserted between two supports as well as an actuation member to transfer those regulator motions which tend to cause a change in length of the spring over onto the first spring end, which actuation member can tilt about a transverse shaft disposed perpendicularly to the longitudinal axis of the spring, the compression spring intentionally inserted into an installed position such that a point on the front face of the appropriate spring end, which point transfers the largest spring force component onto the spring support associated with the tiltable actuation member lies in a plane extending parallel to the longitudinal shaft of tType: GrantFiled: February 12, 1979Date of Patent: March 31, 1981Assignee: Robert Bosch GmbHInventors: Werner Volz, Friedrich Russeler, Ernst Ritter, Reinhard Schwartz
-
Regulator for the fuel quantity to be injected into an internal combustion engine with self-ignition
Patent number: 4252089Abstract: A fuel quantity regulator for self-igniting internal combustion engines having a fuel quantity regulator rod, an actuator for the regulator rod and an rpm governor. Between the actuator and the regulator rod there is interposed a rocker arm and an intermediate lever. The rocker arm is connected with the actuator, and the intermediate lever is connected to the regulator rod. During correct operation, the rocker arm engages a recess in the intermediate lever and as a result the actuator movement is transmitted to the regulator rod. When an error signal is generated, however, the rocker arm disengages the recess in the intermediate lever, and as a result the regulator rod is disconnected from the actuator so that only the rpm governor is operational relative to the regulator rod.Type: GrantFiled: December 27, 1978Date of Patent: February 24, 1981Assignee: Robert Bosch GmbHInventor: Manfred Kramer