WO2012090318A1 - 高圧ポンプ - Google Patents
高圧ポンプ Download PDFInfo
- Publication number
- WO2012090318A1 WO2012090318A1 PCT/JP2010/073764 JP2010073764W WO2012090318A1 WO 2012090318 A1 WO2012090318 A1 WO 2012090318A1 JP 2010073764 W JP2010073764 W JP 2010073764W WO 2012090318 A1 WO2012090318 A1 WO 2012090318A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rocker arm
- end portion
- contact
- roller
- pressure pump
- Prior art date
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M57/00—Fuel-injectors combined or associated with other devices
- F02M57/02—Injectors structurally combined with fuel-injection pumps
- F02M57/022—Injectors structurally combined with fuel-injection pumps characterised by the pump drive
- F02M57/023—Injectors structurally combined with fuel-injection pumps characterised by the pump drive mechanical
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M39/00—Arrangements of fuel-injection apparatus with respect to engines; Pump drives adapted to such arrangements
- F02M39/02—Arrangements of fuel-injection apparatus to facilitate the driving of pumps; Arrangements of fuel-injection pumps; Pump drives
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
- F02M59/10—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive
- F02M59/102—Mechanical drive, e.g. tappets or cams
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/12—Transmitting gear between valve drive and valve
- F01L1/18—Rocking arms or levers
- F01L1/185—Overhead end-pivot rocking arms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/12—Transmitting gear between valve drive and valve
- F01L1/18—Rocking arms or levers
- F01L2001/187—Clips, e.g. for retaining rocker arm on pivot
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
- F01L2003/25—Valve configurations in relation to engine
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L2305/00—Valve arrangements comprising rollers
Definitions
- the present invention relates to a high-pressure pump used for a direct-injection internal combustion engine or the like, and more particularly to a technique for assembling a rocker arm that reciprocates a plunger as a cam rotates.
- Patent Document 1 includes a rocker arm that swings with the rotation of a cam of an internal combustion engine, a pivot that supports the rocker arm in a swingable manner, and a plunger that reciprocates according to the movement of the rocker arm.
- a high pressure pump is disclosed.
- the rocker arm provided in the high-pressure pump as described above has a roller that rotates about an axis parallel to the camshaft of the internal combustion engine, and a base end portion that protrudes from a mounting portion of the roller, and mounting of the roller A tip end portion protruding to the opposite side of the base end portion with respect to the portion is formed.
- the rocker arm is configured such that a roller is in contact with the outer peripheral surface of a cam in an internal combustion engine in a state where a pivot is installed in a hemispherical concave portion formed on the upper surface of the base end portion and a plunger is in contact with the upper surface of the distal end portion. It is installed at the top of the cam.
- the rocker arm configured as described above is assembled as follows. First, the rocker arm is installed at the upper part of the cam so that the roller of the rocker arm contacts the outer peripheral surface of the cam in the internal combustion engine, and the pivot is installed in the recess at the base end of the rocker arm. And a plunger is made to contact
- An object of the present invention is to provide a high-pressure pump that can be easily attached to an internal combustion engine.
- the high-pressure pump of the present invention is mounted on an upper portion of a cam provided on a camshaft of an internal combustion engine, and rocker arm that swings as the cam rotates, projects downward, and the rocker arm at the projecting end.
- a roller that rotates about a parallel axis and rolls on the outer peripheral surface of the cam; and an arm body that rotatably supports the roller, the arm body being a roller to which the roller is attached A mounting portion, and a tip portion protruding from the roller mounting portion in a direction perpendicular to the axis of the roller and contacting the lower end of the plunger from below A base end portion protruding from the roller mounting portion to the opposite side of the tip end portion and abutting from below on the protruding end portion of the pivot, the base end portion being a protruding end portion of the pivot
- the concave portion is recessed downward.
- the projecting end of the pivot is positioned in the recess of the base end by contacting the arm body, and the inner peripheral surface of the recess and the outer peripheral surface of the projecting end of the pivot are separated from each other
- the rocker arm maintains its posture, and after the plunger comes into contact with the tip, the rocker arm moves away from the arm body as the rocker arm rotates in the direction opposite to the rotation due to its own weight.
- the rocker arm installed member fixed to a predetermined position are provided.
- the rocker arm assembly member includes a pair of rotation preventing portions protruding to the side in contact with the arm body, and the pair of rotation prevention portions includes the rocker arm assembly member and the arm body.
- the pair of rotation prevention portions includes the rocker arm assembly member and the arm body.
- the pair of rotation preventing portions are formed in parallel so that portions sandwiching both end portions of the arm main body in the axial center direction of the roller maintain a certain distance from each other.
- the operation of attaching the high pressure pump to the internal combustion engine can be easily performed.
- FIG. 6 is a sectional view taken along line BB in FIG. 5. The figure which shows another form of a rotation prevention part.
- the high-pressure pump 1 is a high-pressure pump that is attached to a direct-injection internal combustion engine and pumps fuel toward a fuel injection valve (not shown) of the internal combustion engine as the cam C of the internal combustion engine rotates.
- the up-down direction and the left-right direction in FIG. 1 are defined as the up-down direction and the left-right direction of the high-pressure pump 1, respectively.
- the front side of the paper surface in FIG. 1 is defined as the front side of the high-pressure pump 1 and the back side of the paper surface is defined as the rear side of the high-pressure pump 1.
- the high-pressure pump 1 includes a housing 10 in which various members are housed, a cylinder 20 provided in the housing 10, and a suction side check valve that allows only fuel to flow into the cylinder 20. 30, a discharge-side check valve 40 that allows only fuel outflow from the cylinder 20, a plunger 50 that reciprocates in the cylinder 20, and a rocker arm 60 that swings by the rotation of the cam C to actuate the plunger 50.
- the pivot 70 supports the rocker arm 60 in a swingable manner, and the rocker arm assembly member 100 fixed to the pivot 70.
- the housing 10 is a housing that houses the cylinder 20, the suction side check valve 30, the discharge side check valve 40, and the plunger 50, and a cam cap CC (see FIG. 2) that rotatably supports the camshaft CS of the internal combustion engine. Attached).
- the cylinder 20 is a cylindrical member in which the plunger 50 can slide.
- a pressurizing chamber 21 is formed in the cylinder 20.
- the pressurizing chamber 21 is a space formed above the plunger 50 in the cylinder 20 by the plunger 50 being fitted into the cylinder 20 from below.
- the suction side check valve 30 is a valve provided in a fuel flow path, and is disposed between a low pressure fuel passage 31 communicating with a fuel tank (not shown) in which fuel is stored and a pressurizing chamber 21. Yes.
- the suction side check valve 30 regulates the flow direction of the fuel so that the fuel flowing from the fuel tank into the pressurizing chamber 21 via the low pressure fuel passage 31 does not flow out from the pressurizing chamber 21 to the low pressure fuel passage 31. That is, the suction side check valve 30 allows only the fuel to flow into the pressurizing chamber 21 of the cylinder 20.
- the discharge-side check valve 40 is a valve provided in the fuel flow path, similar to the suction-side check valve 30, and is a high pressure communicating with a delivery pipe (not shown) that distributes fuel to the fuel injection valve of the internal combustion engine. It is arranged between the fuel passage 41 and the pressurizing chamber 21.
- the discharge side check valve 40 regulates the flow direction of the fuel so that the fuel flowing out from the pressurizing chamber 21 to the high pressure fuel passage 41 does not flow into the pressurizing chamber 21 again. That is, the discharge side check valve 40 allows only the fuel outflow from the pressurizing chamber 21 of the cylinder 20.
- the plunger 50 is a bar material that slides in the vertical direction inside the cylinder 20 by the rocker arm 60 swinging, and forms a pressurizing chamber 21 inside the cylinder 20.
- the plunger 50 moves in a direction (downward) to increase the volume of the pressurizing chamber 21, whereby the pressure in the pressurizing chamber 21 is reduced, and accordingly, fuel flows from the low pressure fuel passage 31 to the suction side check valve 30. The air is sucked into the pressurizing chamber 21 while being pushed open.
- the plunger 50 moves in the direction (upward direction) to decrease the volume of the pressurizing chamber 21, the pressure in the pressurizing chamber 21 rises, and accordingly, the fuel in the pressurizing chamber 21 is discharged to the discharge side.
- the valve 40 is discharged and discharged into the high-pressure fuel passage 41.
- a groove 50 a is formed in the lower portion of the plunger 50.
- the groove part 50 a is formed so as to be depressed over the entire circumferential direction of the plunger 50.
- a retainer 51 is attached to the groove 50a.
- the retainer 51 is an annular member, and is fixed to the groove 50 a so that the inner peripheral surface thereof is in contact with the outer peripheral surface of the groove 50 a in the plunger 50.
- a spring 52 is attached to the retainer 51 so as to bias the plunger 50 downward.
- the spring 52 is a biasing member that biases the plunger 50 downward via the retainer 51.
- One end (lower end) of the spring 52 is attached to the upper surface of the retainer 51, and the other end (upper end) of the spring 52 is attached to a predetermined location of the housing 10.
- the rocker arm 60 is a member that swings by the rotation of the cam C to operate the plunger 50, and rotates a roller 61 that rolls on the outer peripheral surface of the cam C, and the roller 61.
- An arm body 62 that supports the arm body 62.
- the retainer 51 and the spring 52 are not shown for convenience of explanation.
- the roller 61 is provided so that the outer peripheral surface thereof is in contact with the outer peripheral surface of the cam C, and is arranged so as to rotate around an axis that is parallel to the camshaft CS at an upper portion of the cam C.
- the roller 61 rolls on the outer peripheral surface of the cam C as the cam C rotates.
- the arm body 62 is a member that rotatably supports the roller 61 at the center in the left-right direction and forms the exterior of the rocker arm 60.
- the arm body 62 includes a roller attachment portion 63 to which the roller 61 is attached, a distal end portion 64 that protrudes rightward from the roller attachment portion 63, and a base end portion 65 that protrudes leftward from the roller attachment portion 63. ing.
- the roller mounting portion 63 is located at the central portion of the arm body 62 in the left-right direction.
- the roller mounting portion 63 is composed of a pair of side walls that support the roller 61 so as to be sandwiched from both ends in the axial direction. That is, the roller 61 is supported at the roller mounting portion 63 in a state where the vertical direction is opened. Further, the lower end portions of the pair of side walls of the roller mounting portion 63 are circular along the lower shape of the roller 61 so that the roller 61 is slightly exposed and the outer peripheral surface of the roller 61 and the outer peripheral surface of the cam C are in contact with each other. It is formed in an arc shape.
- the distal end portion 64 is located at the right end portion of the arm main body 62.
- the distal end portion 64 includes a pair of side walls that are continuous with the pair of side walls in the roller mounting portion 63, and a contact portion 64a that is provided between the pair of side walls.
- the pair of side walls at the tip end portion 64 extends rightward from the pair of side walls at the roller attachment portion 63 while slightly upward, and the vertical dimension gradually decreases toward the right.
- the contact part 64a is a plate material formed so as to join a pair of side walls at the tip part 64 that are separated from each other.
- the contact portion 64 a is formed substantially horizontally from the right end portion of the pair of side walls at the tip portion 64 to the vicinity of the right side of the roller 61, and is disposed below the upper end portions of the pair of side walls at the tip portion 64. That is, the tip end portion 64 is formed in a substantially U shape when viewed from the right.
- the lower end portion of the plunger 50 is in contact with the upper surface of the contact portion 64a, and the plunger 50 reciprocates in the vertical direction when the rocker arm 60 swings up and down.
- the base end portion 65 is located at the left end portion of the arm main body 62.
- the base end portion 65 is formed in a plate shape that protrudes substantially horizontally from the vicinity of the left side of the roller 61 toward the left side, and is joined to a pair of side walls in the roller mounting portion 63.
- the base end portion 65 is formed with a recess 65a in which the pivot 70 is installed.
- the concave portion 65a is a concave portion formed such that a midway portion in the left-right direction of the base end portion 65 is depressed from above and the lower surface of the base end portion 65 protrudes.
- the recess 65a is formed in a substantially hemispherical shape.
- the pivot 70 is a bar that is fixed to a predetermined portion of the cam cap CC and protrudes downward from the portion.
- the pivot 70 is formed in a substantially hemispherical shape such that its protruding end (lower end) substantially matches the shape of the inner peripheral surface of the recess 65a, and the outer peripheral surface of the protruding end and the inner peripheral surface of the recess 65a. Are disposed in the recess 65a so as to be in contact with each other.
- a lash adjuster can be applied as the pivot 70.
- the rocker arm 60 is configured such that the pivot 70 is installed in the recess 65 a formed in the base end portion 65 and the lower end portion of the plunger 50 is in contact with the upper surface of the contact portion 64 a in the distal end portion 64. It is installed on the upper part of the cam C so that the outer peripheral surface of the roller 61 contacts the outer peripheral surface of C. As the cam C rotates, the roller 61 of the rocker arm 60 rolls on the outer peripheral surface of the cam C, and the rocker arm 60 swings up and down around the base end portion 65 according to the cam profile of the cam C. Along with this, the plunger 50 in contact with the upper surface of the tip 64 of the rocker arm 60 reciprocates in the vertical direction.
- the rocker arm assembly member 100 is a member formed so as to bend one plate material into a substantially U shape.
- the rocker arm assembly member 100 includes a fixed portion 110, a support portion 120, and a bending portion 130.
- the fixing portion 110 extends in the left-right direction while maintaining the same width (left-right dimension in FIG. 3) as the base end portion 65 of the rocker arm 60, and is disposed above the base end portion 65.
- the fixed portion 110 is in a state where the rocker arm 60 is assembled (the pivot 70 is installed in the recess 65a of the base end portion 65 and the plunger 50 is in contact with the contact portion 64a of the distal end portion 64).
- a predetermined clearance is provided between the base end portion 65 and the base end portion 65 so as not to contact the base end portion 65 when the high pressure pump 1 is operated.
- a locking portion 111 is formed in the fixing portion 110 so as to be cut from the right end portion thereof.
- the locking portion 111 is formed so as to engage with locking grooves 71 and 71 formed on the front side and the rear side of the outer peripheral surface of the pivot 70.
- the locking portion 111 is formed so as to cut from the right end portion to the midway portion in the left-right direction at the center portion in the front-rear direction of the fixed portion 110. Therefore, the rocker arm assembly member 100 can be easily fixed to the pivot 70 by inserting the fixing portion 110 into the pivot 70 from the right end side so that the locking portion 111 engages with the locking grooves 71 and 71 of the pivot 70. can do. Conversely, the rocker arm assembly member 100 can be easily detached from the pivot 70 by pulling the fixing portion 110 to the left.
- the locking grooves 71 and 71 are grooves formed on the front side and the rear side on the outer peripheral surface of the pivot 70, respectively, and are formed to engage with the locking portion 111 of the fixing portion 110.
- the locking grooves 71 and 71 are formed so as to be cut out in a rectangular shape when the front side and the rear side of the pivot 70 are viewed from the left and right directions (see FIG. 3), and have the same thickness as the fixing portion 110 (vertical dimension in FIG. 3). The upper and lower dimensions are set.
- the support portion 120 extends in the left-right direction while maintaining the same width as the fixed portion 110 (the left-right dimension in FIG. 3).
- the support portion 120 is disposed below the base end portion 65 so as to face the fixed portion 110 via the base end portion 65 of the rocker arm 60.
- the support portion 120 is in a state in which the rocker arm 60 is assembled (a state in which the pivot 70 is installed in the concave portion 65a formed in the base end portion 65 and the plunger 50 is in contact with the contact portion 64a of the distal end portion 64).
- the rocker arm 60 has a predetermined clearance between the base end portion 65 and the rocker arm 60 so as not to come into contact with the base end portion 65 when the high-pressure pump 1 is operated.
- the support portion 120 is formed with an avoidance portion 121 so as to cut from the right end portion thereof.
- the avoiding portion 121 is provided at the center in the front-rear direction of the support portion 120 so that the support portion 120 does not interfere with the recess 65a of the base end portion 65 of the rocker arm 60 when the rocker arm assembly member 100 is attached to the pivot 70. It is formed so as to cut from the right end portion to the middle portion in the left-right direction.
- the bending portion 130 is formed so as to join the left end portion of the fixing portion 110 and the left end portion of the support portion 120, and is bent so as not to contact the base end portion 65 of the rocker arm 60.
- the rocker arm assembly member 100 configured as described above is configured so that when the rocker arm 60 is assembled (when the plunger 50 is not in contact with the contact portion 64a of the tip end portion 64), the rocker arm 60 pulls the roller 61 by its own weight.
- the rocker arm 60 is supported so that the base end portion 65 is inclined so as to be lowered as a center and does not fall off from the cam C.
- the rocker arm 60 in which the pivot 70 is installed in the recess 65 a of the base end portion 65 is inclined toward the base end portion 65 with the roller 61 as a center due to its own weight.
- the rocker arm assembly member 100 supports the rocker arm 60 when the support portion 120 of the rocker arm assembly member 100 and the portion of the base end portion 65 of the rocker arm 60 excluding the recess 65a come into contact with each other.
- the pivot 70 is loosely installed in the recess 65 a of the base end portion 65.
- the protruding end portion of the pivot 70 is positioned in the recessed portion 65a in a state where the inner peripheral surface of the recessed portion 65a and the outer peripheral surface of the protruding end portion (lower end portion) of the pivot 70 are not in contact with each other.
- the rocker arm 60 is supported in a state where the inner peripheral surface of the recess 65a and the outer peripheral surface of the projecting end portion of the pivot 70 are not in contact with each other and the projecting end portion of the pivot 70 is positioned in the recess 65a.
- the position of the support portion 120 of the rocker arm assembly member 100 is set.
- the rocker arm 60 when the rocker arm 60 is assembled, the protruding end portion of the pivot 70 is located in the recess 65a, and the inner peripheral surface of the recess 65a in the base end portion 65 is separated from the outer peripheral surface of the protruding end portion in the pivot 70.
- the rocker arm 60 is supported by the rocker arm assembly member 100, and after the rocker arm 60 is assembled, that is, when the high-pressure pump 1 is in operation, the rocker arm 60 swings without contacting the rocker arm assembly member 100. Accordingly, when the rocker arm 60 is assembled, the rocker arm 60 can be prevented from being tilted so that the base end portion 65 is lowered around the roller 61 due to its own weight and falling off from the cam C. Therefore, the rocker arm 60 can be easily assembled, and the high-pressure pump 1 can be easily attached to the internal combustion engine.
- the fixing portion 110 of the rocker arm assembly member 100 is extended in the left-right direction and fixed to the pivot 70.
- the mounting method of the rocker arm assembly member 100 is limited to this. is not.
- the fixing portion 110 may be extended vertically and the upper end portion thereof may be fixed to a portion located on the left side of the pivot 70 in the cam cap CC. In such a case, it is not necessary to provide the locking grooves 71 and 71 in the pivot 70.
- the rocker arm assembly member 100 includes a pair of detent portions 140 and 140.
- the anti-rotation portions 140 and 140 are plate members that protrude upward from the right end portion of the support portion 120 in the rocker arm assembly member 100, and the distance from each other gradually increases toward the top. It has a shape (tapered shape) that becomes larger.
- the distance between the base end portions (joining portions with the support portion 120) of the rotation preventing portions 140 and 140 is set to be approximately the same as the width of the base end portion 65 (the left-right dimension in FIG. 3) of the rocker arm 60.
- the rotation preventing portions 140 and 140 are formed in a tapered shape, they may interfere with the base end portion 65 of the rocker arm 60 after the rocker arm 60 is assembled, that is, when the high pressure pump 1 is in operation. No (see Figure 3). Therefore, when the high-pressure pump 1 is in operation, the rocker arm 60 can be swung in the front-rear direction around the pivot 70 to prevent the rotation preventing portions 140 and 140 from being damaged due to contact with the base end portion 65.
- the rotation stoppers 140 and 140 can be configured as follows. As shown in FIG. 8, the anti-rotation parts 140 and 140 are composed of vertical parts 141 and 141 extending in the vertical direction and inclined parts 142 and 142 formed in a tapered shape. The vertical portions 141 and 141 protrude vertically from the right end portion of the support portion 120 in the rocker arm assembly member 100 so as to keep the mutual distance constant. The inclined portions 142 and 142 protrude upward from the protruding end portions (upper end portions) of the vertical portions 141 and 141, and are inclined so that the distance from each other gradually increases as going upward.
- the base end portion 65 of the rocker arm 60 supported by the support portion 120 of the rocker arm assembly member 100 is the vertical portion of the anti-rotation portions 140 and 140. 141/141. Accordingly, when the rocker arm 60 is assembled, the plunger 50 can be brought into contact with the contact portion 64a of the tip end portion 64 of the rocker arm 60 with higher accuracy without moving the rocker arm 60 in the front-rear direction around the pivot 70. Become. Therefore, the assembly of the rocker arm 60 can be performed more easily, and as a result, the attachment of the high-pressure pump 1 to the internal combustion engine can be performed more simply.
- the inclined portions 142 and 142 of the rotation preventing portions 140 and 140 are formed in a taper shape, they interfere with the base end portion 65 of the rocker arm 60 after the rocker arm 60 is assembled, that is, when the high-pressure pump 1 is in operation. There is no. Therefore, when the high-pressure pump 1 is in operation, the rocker arm 60 can be swung in the front-rear direction around the pivot 70 to prevent the rotation preventing portions 140 and 140 from being damaged due to contact with the base end portion 65.
- the heights (vertical dimensions) of the vertical portions 141 and 141 are set so as not to contact the base end portion 65 of the rocker arm 60 when the high-pressure pump 1 is in operation.
- the high-pressure pump 2 which is 2nd embodiment of the high pressure pump which concerns on this invention is demonstrated.
- the high-pressure pump 2 is a high-pressure pump configured substantially the same as the high-pressure pump 1.
- symbol is attached
- the high pressure pump 2 is different from the high pressure pump 1 in that a rocker arm assembly member 200 is provided instead of the rocker arm assembly member 100.
- the pivot 70 in the high-pressure pump 2 is not provided with the locking grooves 71 and 71.
- the rocker arm assembly member 200 is a plate material that extends in the vertical direction while maintaining a width (left-right dimension in FIG. 10) that is larger than the base end portion 65 of the rocker arm 60, and its upper end. The part is fixed to the cam cap CC.
- the rocker arm assembly member 200 is disposed on the right side of the pivot 70 in a range where the base end portion 65 in the left-right direction is located.
- the rocker arm assembly member 200 is formed so as to be cut from the upper end portion to the midway portion in the vertical direction at the center portion in the front-rear direction, and has a substantially U shape.
- the rocker arm assembling member 200 is composed of a support part 210, rotation stoppers 220 and 220, and fixing parts 230 and 230.
- the support portion 210 is located at the lower end portion of the rocker arm assembly member 200, and is in a state in which the rocker arm 60 is assembled (as shown in FIG. 9, the pivot 70 is installed in the recess 65a formed in the base end portion 65, and the distal end portion 64 is provided.
- a predetermined clearance is provided between the rocker arm 60 and the base end portion 65 so that the base end portion 65 does not come into contact with the high pressure pump 2 during operation. Is formed.
- the support portion 210 comes into contact with the base end portion 65 from below when the rocker arm 60 is assembled (when the plunger 50 is not in contact with the contact portion 64 a of the distal end portion 64).
- the rocker arm 60 is supported in a state in which the protruding end portion of the pivot 70 is located in the recess 65a and the inner peripheral surface of the recess 65a in the base end portion 65 is separated from the outer peripheral surface of the protruding end portion of the pivot 70. Is configured to do. Accordingly, when the rocker arm 60 is assembled, the rocker arm 60 can be prevented from being tilted so that the base end portion 65 is lowered around the roller 61 due to its own weight and falling off from the cam C. Therefore, the rocker arm 60 can be easily assembled, and the high pressure pump 2 can be easily attached to the internal combustion engine.
- the anti-rotation portions 220 and 220 protrude upward from both end portions in the front-rear direction of the support portion 210, and the width (the left-right dimension in FIG. 10) gradually decreases as they go upward, and the distance from each other gradually increases. It is formed to be large. In other words, the opposing surfaces of the rotation stoppers 220 and 220 are inclined so as to gradually separate as they go upward.
- the distance between the base ends of the rotation stoppers 220 and 220 (the portion where the opposing surfaces are closest to each other) is set to be approximately the same as the width of the base end 65 of the rocker arm 60 (the horizontal dimension in FIG. 10). .
- the rocker arm 60 when the rocker arm 60 is assembled, the base end portion 65 is sandwiched between the base end portions of the rotation preventing portions 220 and 220, and the rocker arm 60 is prevented from moving in the front-rear direction around the pivot 70.
- the plunger 50 can be brought into contact with the contact portion 64a of the tip end portion 64 of the rocker arm 60 with high accuracy. Therefore, the assembly of the rocker arm 60 can be performed more easily, and as a result, the attachment of the high-pressure pump 2 to the internal combustion engine can be performed more simply.
- the rocker arm 60 since the opposing surfaces of the rotation stoppers 220 and 220 are inclined so as to be gradually separated from each other upward, after the rocker arm 60 is assembled, that is, when the high-pressure pump 2 is in operation, The stop portions 220 and 220 do not interfere with the proximal end portion 65 of the rocker arm 60. Therefore, when the high-pressure pump 2 is in operation, the rocker arm 60 can be swung in the front-rear direction around the pivot 70 to prevent the rotation preventing portions 220 and 220 from being damaged due to contact with the base end portion 65.
- the rocker arm 60 does not move in the front-rear direction around the pivot 70 when the rocker arm 60 is assembled.
- the rocker arm 60 can be brought into contact with the contact portion 64a of the distal end portion 64 with higher accuracy.
- the fixed portions 230 and 230 are formed so as to protrude upward from the upper end portions of the rotation preventing portions 220 and 220 while maintaining a certain width (left and right dimensions in FIG. 10).
- the protruding end portions (upper end portions) of the fixing portions 230 and 230 are fixed to the cam cap CC.
- the high-pressure pump 3 which is 3rd embodiment of the high pressure pump which concerns on this invention is demonstrated.
- the high-pressure pump 3 is a high-pressure pump configured substantially the same as the high-pressure pump 1.
- symbol is attached
- the high pressure pump 3 is different from the high pressure pump 1 in that a rocker arm assembly member 300 is provided instead of the rocker arm assembly member 100.
- the pivot 70 in the high-pressure pump 3 is not provided with the locking grooves 71 and 71.
- the rocker arm assembly member 300 includes a fixed portion 310, a support portion 320, and rotation preventing portions 330 and 330.
- the fixing portion 310 is a plate material that extends in the left-right direction in a range to the right of the right end portion of the abutting portion 64 a at the tip portion 64, and is disposed above the tip portion 64. A right end portion of the fixing portion 310 is fixed to the cam cap CC.
- the support portion 320 extends in the left-right direction while maintaining the same width (left-right dimension in FIG. 12) as the base end portion 65 of the rocker arm 60. It is a board material to be put out.
- the support part 320 is disposed above the tip part 64 and is integrally joined to the fixing part 310.
- the support portion 320 is in a state where the rocker arm 60 is assembled (as shown in FIG. 11, the pivot 70 is installed in the recess 65 a formed in the base end portion 65, and the plunger 50 is brought into contact with the contact portion 64 a of the distal end portion 64.
- a plunger avoiding portion 321 is formed in the support portion 320 so as to cut from the left end portion at the center in the front-rear direction, and the plunger avoiding portion 321 avoids contact between the support portion 320 and the plunger 50.
- the support portion 320 abuts the tip end portion 64 from above when the rocker arm 60 is assembled (when the plunger 50 is not in contact with the abutment portion 64 a of the tip end portion 64).
- the rocker arm 60 is supported in a state where the projecting end portion of the pivot 70 is located in the recess 65a and the inner peripheral surface of the recess 65a in the base end portion 65 is separated from the outer peripheral surface of the projecting end portion of the pivot 70.
- It is configured as follows. Thereby, when the rocker arm 60 is assembled, the rocker arm 60 can be prevented from being tilted so that the tip end portion 64 rises around the roller 61 due to its own weight and falling off from the cam C. Therefore, the rocker arm 60 can be easily assembled, and the high-pressure pump 3 can be easily attached to the internal combustion engine.
- the anti-rotation portions 330 and 330 are plate members that protrude downward from both end portions in the front-rear direction of the support portion 320, and are arranged in alignment with the contact portion 64 a of the tip end portion 64 of the rocker arm 60 in the left-right direction. ing.
- the anti-rotation parts 330 and 330 have a shape (tapered shape) in which the mutual distance gradually increases as going downward.
- the distance between the base end portions (joint portions with the support portion 320) of the rotation preventing portions 330 and 330 is set to be approximately the same as the width of the distal end portion 64 (the horizontal dimension in FIG. 12) of the rocker arm 60.
- the distal end portion 64 is sandwiched between the base end portions of the rotation preventing portions 330 and 330, and the rocker arm 60 can be prevented from moving in the front-rear direction around the pivot 70.
- the plunger 50 can be brought into contact with the contact portion 64a of the tip end portion 64 of the rocker arm 60 with high accuracy.
- the anti-rotation portions 330 and 330 are arranged so as to come into contact with the distal end portion 64 that is relatively far from the pivot 70 that is the center when the rocker arm 60 swings. Therefore, the plunger 50 can be brought into contact with the contact portion 64a of the tip end portion 64 of the rocker arm 60 with higher accuracy. Therefore, the assembly of the rocker arm 60 can be performed more easily, and as a result, the attachment of the high pressure pump 3 to the internal combustion engine can be performed more simply.
- the rotation preventing portions 330 and 330 are formed in a tapered shape, they do not interfere with the distal end portion 64 of the rocker arm 60 after the rocker arm 60 is assembled, that is, when the high pressure pump 3 is in operation. . Therefore, when the high-pressure pump 3 is in operation, the rocker arm 60 can be swung in the front-rear direction around the pivot 70 to prevent the rotation preventing portions 330 and 330 from being damaged due to contact with the tip end portion 64.
- the rocker arm 60 does not move in the front-rear direction around the pivot 70 when the rocker arm 60 is assembled.
- the rocker arm 60 can be brought into contact with the contact portion 64a of the distal end portion 64 with higher accuracy.
- the rocker arm assembly member provided in the high-pressure pump according to the present invention may be in contact with the arm body so as to resist rotation due to its own weight around the roller in the rocker arm, and when the rocker arm 60 is assembled,
- the rocker arm assembly member 100 and the rocker arm assembly member 200 are configured to contact the base end portion 65 from below, or the rocker arm assembly member 300 is configured to contact the distal end portion 64 from above. Can be applied.
- the present invention can be used for a high-pressure pump including a rocker arm provided with a roller, which is mounted on an upper part of a cam of an internal combustion engine.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
まず、ロッカアームのローラが内燃機関におけるカムの外周面に接触するように、ロッカアームをカムの上部に設置すると共に、ロッカアームにおける基端部の凹部にピボットを設置する。
そして、ロッカアームの先端部にプランジャを当接させる。
そのため、製造ラインにおける高圧ポンプの内燃機関への取り付け、又は高圧ポンプの交換等を行う場合に、それらの作業が煩雑となる。
以下では、図1~図8を参照して、本発明に係る高圧ポンプの第一実施形態である高圧ポンプ1について説明する。
高圧ポンプ1は、直噴式の内燃機関に取り付けられ、当該内燃機関のカムCの回転に伴って、前記内燃機関の燃料噴射弁(不図示)に向けて燃料を圧送する高圧ポンプである。
なお、図1における上下方向、及び左右方向をそれぞれ高圧ポンプ1の上下方向、及び左右方向と規定する。更に、図1における紙面手前側を高圧ポンプ1の前方、同じく紙面奥側を高圧ポンプ1の後方と規定する。
加圧室21は、シリンダ20の内部にプランジャ50が下方から嵌挿されることによって、シリンダ20の内部におけるプランジャ50の上方に形成された空間である。
プランジャ50が加圧室21の容積を増加させる方向(下方向)に移動することによって加圧室21内の圧力が低下し、それに伴って低圧燃料通路31から燃料が吸入側逆止弁30を押し開きつつ加圧室21に吸入されることとなる。
一方、プランジャ50が加圧室21の容積を減少させる方向(上方向)に移動することによって加圧室21内の圧力が上昇し、それに伴って加圧室21内の燃料が吐出側逆止弁40を押し開きつつ高圧燃料通路41に吐出されることとなる。
溝部50aは、プランジャ50の周方向全域に亘って窪むように形成されている。溝部50aには、リテーナ51が取り付けられている。
リテーナ51は、円環状の部材であり、その内周面がプランジャ50における溝部50aの外周面と接触するように溝部50aに固定されている。リテーナ51には、プランジャ50を下方に付勢するようにバネ52が取り付けられている。
バネ52は、リテーナ51を介してプランジャ50を下方に付勢する付勢部材である。バネ52の一端部(下端部)は、リテーナ51の上面に取り付けられ、バネ52の他端部(上端部)は、ハウジング10の所定箇所に取り付けられている。
なお、図2においては、説明の便宜上、リテーナ51及びバネ52を図示していない。
先端部64における一対の側壁は、ローラ取付部63における一対の側壁から若干上方に向かいつつ右方向に延出し、右方向に行くに従って上下寸法が徐々に小さくなっている。
当接部64aは、互いに離間する、先端部64における一対の側壁を接合するように形成された板材である。当接部64aは、先端部64における一対の側壁の右端部からローラ61の右側近傍にかけて概ね水平に形成され、先端部64における一対の側壁の上端部よりも下方に配置されている。つまり、先端部64は、右方向から見て略U字状に形成されている。
当接部64aの上面には、プランジャ50の下端部が当接されており、ロッカアーム60が上下に揺動することによってプランジャ50が上下方向に往復運動することとなる。
基端部65には、ピボット70が設置される凹部65aが形成されている。
凹部65aは、基端部65の左右方向における中途部を上方から窪ませて、基端部65の下面が突出するように形成された凹部である。凹部65aは、略半球面状に形成されている。
なお、ピボット70としては、例えば、ラッシュアジャスタを適用可能である。
固定部110には、その右端部から切り込むように係止部111が形成されている。
係止溝71・71は、それぞれピボット70の外周面における前側及び後側に形成された溝であり、固定部110の係止部111と係合するように形成されている。係止溝71・71は、ピボット70の前側及び後側を左右方向から見て矩形状に切り欠くように形成され(図3参照)、固定部110の厚み(図3における上下寸法)と同程度の上下寸法に設定されている。
支持部120には、その右端部から切り込むように回避部121が形成されている。
図5に示すように、ロッカアーム60の組み付け時において、基端部65の凹部65aにピボット70が設置されたロッカアーム60は、その自重によりローラ61を中心として基端部65側に傾く。そして、ロッカアーム組付部材100の支持部120とロッカアーム60の基端部65における凹部65aを除いた部分とが接触することにより、ロッカアーム組付部材100がロッカアーム60を支持することとなる。この時、基端部65の凹部65aにピボット70が緩く設置された状態となっている。詳細には、凹部65aの内周面とピボット70における突出端部(下端部)の外周面とが接触しない状態で、ピボット70の突出端部が凹部65a内に位置している。
なお、凹部65aの内周面とピボット70における突出端部の外周面とが接触せずに、ピボット70の突出端部が凹部65a内に位置した状態で、ロッカアーム60が支持されるように、ロッカアーム組付部材100の支持部120の位置が設定されている。
これにより、ロッカアーム60の組み付け時に、ロッカアーム60が自重によりローラ61を中心として基端部65が下降するように傾き、カムC上から脱落することを防止できる。したがって、ロッカアーム60の組み付けを簡便に行うことができ、延いては高圧ポンプ1の内燃機関への取り付けを簡便に行うことができる。
例えば、図6に示すように、固定部110を垂直に延出させて、その上端部をカムキャップCCにおけるピボット70の左側に位置する部分に固定する構成とすることも可能である。斯かる場合、ピボット70に係止溝71・71を設ける必要はない。
図1から図3に示すように、回り止め部140・140は、ロッカアーム組付部材100における支持部120の右端部から上方に向けて突出する板材であり、上方に行くに従って互いの距離が徐々に大きくなるような形状(テーパ形状)を有している。回り止め部140・140の基端部(支持部120との接合部)同士の距離は、ロッカアーム60における基端部65の幅(図3における左右寸法)と同程度に設定されている。
これにより、ロッカアーム60の組み付け時に、ロッカアーム60がピボット70を中心として前後方向に移動することを防止でき、プランジャ50を精度良くロッカアーム60における先端部64の当接部64aに当接させることが可能となる。したがって、ロッカアーム60の組み付けをより簡便に行うことができ、延いては高圧ポンプ1の内燃機関への取り付けをより簡便に行うことができる。
また、前述のように、回り止め部140・140は、テーパ状に形成されているため、ロッカアーム60の組み付け後、つまり高圧ポンプ1の稼働時には、ロッカアーム60の基端部65に干渉することがない(図3参照)。したがって、高圧ポンプ1の稼働時に、ロッカアーム60がピボット70を中心として前後方向に揺動して、基端部65と接触することによる回り止め部140・140の破損を防止することができる。
図8に示すように、回り止め部140・140は、上下方向に延出する垂直部141・141と、テーパ状に形成される傾斜部142・142と、から構成されている。
垂直部141・141は、ロッカアーム組付部材100における支持部120の右端部から上方に向けて、互いの距離を一定に保つように垂直に突出している。
傾斜部142・142は、垂直部141・141の突出端部(上端部)から上方に向けて突出しており、上方に行くに従って互いの距離が徐々に大きくなるように傾斜している。
これにより、ロッカアーム60の組み付け時に、ロッカアーム60がピボット70を中心として前後方向に移動することなく、プランジャ50をより精度良くロッカアーム60における先端部64の当接部64aに当接させることが可能となる。したがって、ロッカアーム60の組み付けをより簡便に行うことができ、延いては高圧ポンプ1の内燃機関への取り付けをより簡便に行うことができる。
また、回り止め部140・140の傾斜部142・142は、テーパ状に形成されているため、ロッカアーム60の組み付け後、つまり高圧ポンプ1の稼働時には、ロッカアーム60の基端部65に干渉することがない。したがって、高圧ポンプ1の稼働時に、ロッカアーム60がピボット70を中心として前後方向に揺動して、基端部65と接触することによる回り止め部140・140の破損を防止することができる。ただし、垂直部141・141の高さ(上下寸法)は、高圧ポンプ1の稼働時において、ロッカアーム60の基端部65と接触しない程度に設定されているものとする。
以下では、図9及び図10を参照して、本発明に係る高圧ポンプの第二実施形態である高圧ポンプ2について説明する。
高圧ポンプ2は、高圧ポンプ1と略同様に構成された高圧ポンプである。
なお、以下では、高圧ポンプ1と共通する部分には同一の符号を付して、その説明は省略する。
ただし、高圧ポンプ2におけるピボット70には、係止溝71・71が設けられていないものとする。
ロッカアーム組付部材200は、前後方向における中央部において、上端部から上下方向における中途部にかけて切り込むように形成され、略U字形状を有する。ロッカアーム組付部材200は、支持部210、回り止め部220・220、及び固定部230・230から構成されている。
これにより、ロッカアーム60の組み付け時に、ロッカアーム60が自重によりローラ61を中心として基端部65が下降するように傾き、カムC上から脱落することを防止できる。したがって、ロッカアーム60の組み付けを簡便に行うことができ、延いては高圧ポンプ2の内燃機関への取り付けを簡便に行うことができる。
これにより、ロッカアーム60の組み付け時に、基端部65が回り止め部220・220の基端部間で挟持されることとなって、ロッカアーム60がピボット70を中心として前後方向に移動することを防止でき、プランジャ50を精度良くロッカアーム60における先端部64の当接部64aに当接させることが可能となる。したがって、ロッカアーム60の組み付けをより簡便に行うことができ、延いては高圧ポンプ2の内燃機関への取り付けをより簡便に行うことができる。
以下では、図11及び図12を参照して、本発明に係る高圧ポンプの第三実施形態である高圧ポンプ3について説明する。
高圧ポンプ3は、高圧ポンプ1と略同様に構成された高圧ポンプである。
なお、以下では、高圧ポンプ1と共通する部分には同一の符号を付して、その説明は省略する。
ただし、高圧ポンプ3におけるピボット70には、係止溝71・71が設けられていないものとする。
支持部320には、その前後方向における中央部において、左端部から切り込むようにプランジャ回避部321が形成されており、プランジャ回避部321によって支持部320とプランジャ50との接触を回避している。
これにより、ロッカアーム60の組み付け時に、ロッカアーム60が自重によりローラ61を中心として先端部64が上昇するように傾き、カムC上から脱落することを防止できる。したがって、ロッカアーム60の組み付けを簡便に行うことができ、延いては高圧ポンプ3の内燃機関への取り付けを簡便に行うことができる。
これにより、ロッカアーム60の組み付け時に、先端部64が回り止め部330・330の基端部間で挟持されることとなって、ロッカアーム60がピボット70を中心として前後方向に移動することを防止でき、プランジャ50を精度良くロッカアーム60における先端部64の当接部64aに当接させることが可能となる。特に、回り止め部330・330は、ロッカアーム60が揺動する際の中心となるピボット70から比較的遠い位置となる先端部64と接触するように配置されているため、先端部64の前後方向の移動を防止することで、より精度良くプランジャ50をロッカアーム60における先端部64の当接部64aに当接させることが可能となる。したがって、ロッカアーム60の組み付けをより簡便に行うことができ、延いては高圧ポンプ3の内燃機関への取り付けをより簡便に行うことができる。
10 ハウジング
20 シリンダ
30 吸入側逆止弁
40 吐出側逆止弁
50 プランジャ
60 ロッカアーム
61 ローラ
62 アーム本体
63 ローラ取付部
64 先端部
65 基端部
70 ピボット
100 ロッカアーム組付部材
110 固定部
120 支持部
140 回り止め部
C カム
CS カムシャフト
CC カムキャップ
Claims (3)
- 内燃機関のカムシャフトに設けられるカムの上部に載置され、当該カムの回転に伴って揺動するロッカアームと、
下方に向けて突出し、当該突出端部にて前記ロッカアームを揺動可能に支持するピボットと、
前記ロッカアームの動きに応じて上下方向に往復運動するプランジャと、を具備し、
前記内燃機関に取り付けられる高圧ポンプであって、
前記ロッカアームは、
前記カムシャフトに平行となる軸心回りに回転し、前記カムの外周面上を転動するローラと、
前記ローラを回転可能に支持するアーム本体と、を具備し、
前記アーム本体は、
前記ローラが取り付けられるローラ取付部と、
前記ローラ取付部から前記ローラの軸心に対して直交する方向に突出し、前記プランジャの下端部に下方から当接される先端部と、
前記ローラ取付部から前記先端部とは反対側に突出し、前記ピボットの突出端部に下方から当接される基端部と、から構成され、
前記基端部は、前記ピボットの突出端部が設置されるように、下方に向けて窪む凹部を有し、
前記先端部に前記プランジャが当接される前には、前記ロッカアームにおける前記ローラを中心とした自重による回転に抗するように、前記アーム本体に当接することによって、前記ピボットの突出端部が前記基端部の凹部内に位置し、かつ当該凹部の内周面と前記ピボットにおける突出端部の外周面とが離間した状態で、前記ロッカアームの姿勢を保持し、前記先端部に前記プランジャが当接された後には、前記ロッカアームが自重による回転とは逆方向に回転することに伴って、前記アーム本体から離間するように、一定の位置に固定されるロッカアーム組付部材が設けられることを特徴とする高圧ポンプ。 - 前記ロッカアーム組付部材は、
前記アーム本体に当接する側に突出する一対の回り止め部を具備し、
前記一対の回り止め部は、
前記ロッカアーム組付部材と前記アーム本体とが接触した状態で、前記ローラの軸心方向における前記アーム本体の両端部を挟持するように配置され、突出する方向に行くに従って、互いの距離が徐々に大きくなるように形成されることを特徴とする請求項1に記載の高圧ポンプ。 - 前記ロッカアーム組付部材は、
前記アーム本体に当接する側に突出する一対の回り止め部を具備し、
前記一対の回り止め部は、
前記ロッカアーム組付部材と前記アーム本体とが接触した状態で、前記ローラの軸心方向における前記アーム本体の両端部を挟持すると共に、互いに一定の距離を保つように平行に形成される一対の垂直部と、
前記一対の垂直部にそれぞれ連続し、前記一対の垂直部から離間するに従って、互いの距離が徐々に大きくなるように形成される一対の傾斜部と、を有することを特徴とする請求項1に記載の高圧ポンプ。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012550639A JP5569596B2 (ja) | 2010-12-28 | 2010-12-28 | 高圧ポンプ |
PCT/JP2010/073764 WO2012090318A1 (ja) | 2010-12-28 | 2010-12-28 | 高圧ポンプ |
CN201080071018.0A CN103282641B (zh) | 2010-12-28 | 2010-12-28 | 高压泵 |
EP10861309.2A EP2660458B1 (en) | 2010-12-28 | 2010-12-28 | High-pressure pump |
US13/976,726 US9316193B2 (en) | 2010-12-28 | 2010-12-28 | High-pressure pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2010/073764 WO2012090318A1 (ja) | 2010-12-28 | 2010-12-28 | 高圧ポンプ |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012090318A1 true WO2012090318A1 (ja) | 2012-07-05 |
Family
ID=46382467
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2010/073764 WO2012090318A1 (ja) | 2010-12-28 | 2010-12-28 | 高圧ポンプ |
Country Status (5)
Country | Link |
---|---|
US (1) | US9316193B2 (ja) |
EP (1) | EP2660458B1 (ja) |
JP (1) | JP5569596B2 (ja) |
CN (1) | CN103282641B (ja) |
WO (1) | WO2012090318A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015010692A1 (de) * | 2013-07-23 | 2015-01-29 | Schaeffler Technologies Gmbh & Co. Kg | Hebelartiger nocken- oder exzenterfolger |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112610295B (zh) * | 2020-12-31 | 2022-03-18 | 隆鑫通用动力股份有限公司 | 一种发动机气门摇臂装置 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS564727B2 (ja) * | 1976-12-02 | 1981-01-31 | ||
JP2004100499A (ja) * | 2002-09-06 | 2004-04-02 | Nsk Ltd | カムフォロア装置 |
JP2004218479A (ja) * | 2003-01-10 | 2004-08-05 | Toyota Motor Corp | 車載燃料ポンプの駆動機構 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5899383A (en) * | 1994-05-18 | 1999-05-04 | Cummins Engine Company, Inc. | Ceramic fuel injector timing plunger |
JP2000027608A (ja) * | 1998-07-10 | 2000-01-25 | Hino Motors Ltd | アジャストスクリュ |
JP2004308615A (ja) | 2003-04-10 | 2004-11-04 | Toyota Motor Corp | 高圧ポンプ |
JP2005325705A (ja) * | 2004-05-12 | 2005-11-24 | Toyota Motor Corp | 燃料ポンプの駆動構造 |
DE102005019744A1 (de) * | 2005-04-28 | 2006-11-09 | Man B & W Diesel Ag | Vorrichtung zur Ansteuerung einer Kraftstoffpumpe |
JP2010539392A (ja) * | 2007-09-18 | 2010-12-16 | コーヨー ベアリングス ユーエスエイ、エルエルシー | 連結装置 |
JP5164545B2 (ja) * | 2007-12-07 | 2013-03-21 | 株式会社オティックス | 動弁装置及びロッカアームユニット |
JP5189520B2 (ja) * | 2009-02-09 | 2013-04-24 | 本田技研工業株式会社 | 内燃機関における高圧ポンプ取付け構造 |
US20100316506A1 (en) * | 2009-06-11 | 2010-12-16 | Gm Global Technology Operations, Inc. | Engine fuel pump drive system |
CN101694169B (zh) * | 2009-10-22 | 2012-07-04 | 北京中清能发动机技术有限公司 | 内燃机的润滑系统及其内燃机 |
-
2010
- 2010-12-28 EP EP10861309.2A patent/EP2660458B1/en not_active Not-in-force
- 2010-12-28 JP JP2012550639A patent/JP5569596B2/ja not_active Expired - Fee Related
- 2010-12-28 CN CN201080071018.0A patent/CN103282641B/zh not_active Expired - Fee Related
- 2010-12-28 US US13/976,726 patent/US9316193B2/en not_active Expired - Fee Related
- 2010-12-28 WO PCT/JP2010/073764 patent/WO2012090318A1/ja active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS564727B2 (ja) * | 1976-12-02 | 1981-01-31 | ||
JP2004100499A (ja) * | 2002-09-06 | 2004-04-02 | Nsk Ltd | カムフォロア装置 |
JP2004218479A (ja) * | 2003-01-10 | 2004-08-05 | Toyota Motor Corp | 車載燃料ポンプの駆動機構 |
Non-Patent Citations (1)
Title |
---|
See also references of EP2660458A4 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015010692A1 (de) * | 2013-07-23 | 2015-01-29 | Schaeffler Technologies Gmbh & Co. Kg | Hebelartiger nocken- oder exzenterfolger |
Also Published As
Publication number | Publication date |
---|---|
EP2660458A1 (en) | 2013-11-06 |
CN103282641A (zh) | 2013-09-04 |
CN103282641B (zh) | 2015-11-25 |
JPWO2012090318A1 (ja) | 2014-06-05 |
JP5569596B2 (ja) | 2014-08-13 |
US20130269656A1 (en) | 2013-10-17 |
US9316193B2 (en) | 2016-04-19 |
EP2660458A4 (en) | 2015-11-11 |
EP2660458B1 (en) | 2017-11-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4930478B2 (ja) | ローラリフタ、ローラリフタの製造方法、および液体用ポンプ | |
US8863716B2 (en) | Tappet | |
JP2011089473A (ja) | 燃料ポンプ | |
JP5408010B2 (ja) | 高圧ポンプ | |
JP5569596B2 (ja) | 高圧ポンプ | |
JP2011094596A (ja) | タペット装置およびそのタペット装置を用いた燃料供給ポンプ | |
JP6122043B2 (ja) | ローラリフタ | |
JP5241612B2 (ja) | ロッカアームユニット | |
JP6527784B2 (ja) | リフタ | |
JP2008095573A (ja) | 高圧ポンプ | |
JP6161833B2 (ja) | 燃料ポンプ | |
JP2010168922A (ja) | 高圧ポンプ | |
JP2009108698A (ja) | 動弁装置及び支持部材 | |
JP6890099B2 (ja) | ローラリフタ | |
WO2009139145A1 (ja) | ディーゼルポンプ | |
JP2011117429A (ja) | 高圧ポンプ | |
JP4915249B2 (ja) | 燃料噴出ポンプ | |
JP2008144632A (ja) | カム機構搭載装置 | |
US9957846B2 (en) | Lifter structure | |
JP2005036711A (ja) | ポンプの取付構造 | |
JP2009180093A (ja) | ポンプ | |
JP5370438B2 (ja) | 高圧ポンプ | |
JP2020079583A (ja) | リフタ装置 | |
JP2002349388A (ja) | 燃料噴射ポンプ | |
JP6160524B2 (ja) | ポンプ |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 10861309 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2012550639 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 13976726 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
REEP | Request for entry into the european phase |
Ref document number: 2010861309 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2010861309 Country of ref document: EP |