公开(公告)号：WO1985002826A1

公开(公告)日：1985-07-04

申请号：PCT/US1984001616

申请日：1984-10-10

Applicant: CATERPILLAR TRACTOR CO.

Inventor： CATERPILLAR TRACTOR CO. ,  SATZLER, Ronald, L.

IPC: B62D55/30

CPC classification number: B62D55/30

Abstract: A belt tensioning mechanism (31) for use with a vehicle (10) having an axle (20) pivotably connected to a frame (14) of the vehicle with inextensible belts (26, 28) entrained about wheel assemblies (22, 24, 22', 24') mounted on either side of the vehicle for transmitting tractive effort to the earth. Some systems provide tensioning of belts by producing a separating force between only the wheel assemblies on one side of the vehicle independent from the tensioning of the other side while others provide tensioning of track having sprocket driving members by using bulky complicated mechanisms for providing the tensioning of the track and to provide relative motion of the front axle from one side to the other. In the subject arrangement, an axle (20) is connected to a frame (14) by a swivel bearing (36) being slidably disposed on a pin (34), such that, the axle (20) moves longitudinally relative to the frame (14) while still being able to swivel about the pin (34). Furthermore, an adjusting mechanism (42) is provided to produce the force necessary to sufficiently tension the belts (26, 28) to provide frictional drive between the belts (26, 28) and the drive wheel assemblies (24, 24'). In one of the embodiments, the adjusting mechanism (42) includes a force generating mechanism (44) responsive to fluid pressure transmitted thereto from a pump (90). This arrangement allows the axle (20) to move relative to the frame (14) in the longitudinal direction in the event that a foreign object passes between one of the belts and its respective wheel assembly without requiring a large bulky mechanism that would be impractical for use on large industrial vehicles.

公开(公告)号：WO1985001318A1

公开(公告)日：1985-03-28

申请号：PCT/US1983001735

申请日：1983-11-07

Applicant: CATERPILLAR TRACTOR CO.

Inventor： CATERPILLAR TRACTOR CO. ,  BAILEY, John, M. ,  LINDENFELSER, Dale, L.

IPC: F02F03/26

CPC classification number: F02B19/1004 ,  F02B3/06 ,  F02F3/24 ,  F02F3/285 ,  F05C2201/021 ,  Y02T10/125

Abstract: Heat plugs made of durable, heat resistant material are useful for protecting aluminium pistons from the jet flame of burning fuel emitted from the precombustion chamber of some compression ignition engines. However, when slower burning fuel such as vegetable oil is burned, unburned fuel is sometimes deflected by the heat plug against the adjacent cylinder bore where it dilutes the lubricating oil and causes high wear to that portion of the bore and to the piston rings. The subject heat plug (26) is provided with a barrier (37) which prevents unburned fuel from being deflected against a portion of the cylinder bore (12) nearest the heat plug. Thus, that unburned fuel remains in the burning gaseous mixture in the combustion chamber and is burned during the combustion process within the combustion chamber.

公开(公告)号：WO1985001082A1

公开(公告)日：1985-03-14

申请号：PCT/US1983001637

申请日：1983-10-20

Applicant: CATERPILLAR TRACTOR CO.

Inventor： CATERPILLAR TRACTOR CO. ,  STANIAK, Waldemar, A. ,  SAMUELSON, Robert, E. ,  MONCELLE, Michael, E.

IPC: F02D01/08

CPC classification number: F02D1/12 ,  F02B3/06 ,  F02D1/08 ,  F02D41/38

Abstract: A fuel control system (10 or 70) includes a hydraulic servo system (17) for moving a fuel rack (15) in response to movement of a rack control member (16). A brushless direct current torque motor (50), having a rotor (51) and a control lever (53) fixed thereto, is arranged with its lever end (54) confined between opposed shoulders (41, 42) on the rack control member (16). Electronically energized movement of the rotor (51) and its control lever (53) in one direction, or spring (56) biased movement in the other, causes corresponding movement of the control member (16) and fuel rack (15). A second control lever (99), movable by a mechanical governor control (80), is engageable with another shoulder (104) on the rack control member (16) to move it in a fuel-decreasing direction. The present fuel control systems (10 and 70) are particularly useful in conjunction with a fuel injection pump (11) for a diesel engine (13) with the fuel flow rate being controlled in sole response (10) to an electronic engine control (60) or in dual response (70) to an electronic engine control (60) and a mechanical governor control (80).

公开(公告)号：WO1985000862A1

公开(公告)日：1985-02-28

申请号：PCT/US1983001638

申请日：1983-10-20

Applicant: CATERPILLAR TRACTOR CO.

Inventor： CATERPILLAR TRACTOR CO. ,  MORRIS, Hugh, C.

IPC: F16H45/02

CPC classification number: F16H61/143

Abstract: A transmission control system (12) for use with a transmission assembly (10) having a torque converter (14) which couples a power input member (22) with a transmission speed ratio section (16). A lock-up clutch (22) is provided to selectively bypass the torque converter (14) and couple the input member (22) directly with the transmission speed ratio section (16). Some systems provide converter lock-up and lower transmission control pressure responsive to positioning of the transmission speed selector valve while others require additional complicated controls to operate the lock-up clutch of the converter and reduce transmission control pressure relative to the vacuum level of the prime mover. In the subject arrangement, a single valve (112) that is responsive to the output speed of the transmission simultaneously actuates the lock-up clutch (32) of the torque ocnverter (14) and lowers the operating pressure level of a dual stage pressure relief valve by directing a fluid pressure signal to an actuating chamer (106) of the dual stage pressure relief valve. This arrangement ensures that the output speed of the transmission is operating at a sufficient low torque level before the lock-up clutch is actuated and furthermore does not require numerous complicated controls to lower the transmission control operating pressure and actuate the lock-up clutch (32).

公开(公告)号：WO1985000786A1

公开(公告)日：1985-02-28

申请号：PCT/US1983001929

申请日：1983-12-08

Applicant: CATERPILLAR TRACTOR CO.

Inventor： CATERPILLAR TRACTOR CO. ,  EARLESON, Walter, E. ,  KING, Dennis, M. ,  MONCELLE, Michael, E.

IPC: B60L11/02

CPC classification number: F02D29/06 ,  B60K28/16 ,  B60L11/02 ,  B60L2200/26 ,  B60T8/1705 ,  F02D31/007 ,  Y02T10/70 ,  Y02T10/7077

Abstract: A digital processor implemented electronic governor for engine-generator units including a first control loop for producing a speed error and controlling fuel delivery setting as a function thereof and a second control loop for detecting rack error and producing a field excitation current control signal as a function thereof. Power dips and overruns are voided by modifying rack error as a function of engine acceleration. Means are provided for developing speed errors and rack control signals despite a breakdown in the rack position indicator. Open loop low power setting controls are provided. Wheel-slip control, power limiting and variable acceleration functions are provided.

公开(公告)号：WO1984004497A1

公开(公告)日：1984-11-22

申请号：PCT/US1983001064

申请日：1983-07-11

Applicant: CATERPILLAR TRACTOR CO.

Inventor： CATERPILLAR TRACTOR CO. ,  GRAWEY, Charles, E.

IPC: B60B23/10

CPC classification number: B60B23/10 ,  B60C3/02 ,  B60C15/0233 ,  B64C25/36

Abstract: A wheel assembly (10) having self-contained tire mounting and demounting capabilities includes a closed torus tire (18) mountable on a wheel rim (11). The tire (18) is forced onto the wheel rim (11) by a plurality of retainers (25) which are driven into a plurality of mating slots (13) in the wheel rim by bolts (31). Similarly, the tire is forced off of the rim by screwing the bolts through threaded apertures in the retainers and against the wheel rim. Thus, the tire can be demounted from the wheel rim and that tire or another tire can be mounted on the wheel rim without removing the wheel rim from the vehicle.

公开(公告)号：WO1984004358A1

公开(公告)日：1984-11-08

申请号：PCT/US1983001657

申请日：1983-10-24

Applicant: CATERPILLAR TRACTOR CO.

Inventor： CATERPILLAR TRACTOR CO. ,  VACHON, Louis, F.

IPC: F02F07/00

CPC classification number: F02F7/0046 ,  B25B9/00 ,  B25B27/06

Abstract: To service an engine (10), it is frequently determined that a cylinder liner (16) and piston (26) must be replaced. Removal is difficult and time consuming if the piston (26) is first removed through the liner (16) and the liner (16) is then grasped from below and pulled from the block (14). A method includes inserting a tool (12) into a bore (18) of the liner (16) and expanding the tool (12) into a frictional fit against the liner (16). A force is applied on the tool (12) to forcibly move the liner (16). The piston (26) and associated rings (22) and rod (24) are held in place in the liner (16) by a partial vacuum for removal with the liner (16) as a complete unit (58).

公开(公告)号：WO1984004075A1

公开(公告)日：1984-10-25

申请号：PCT/US1983000955

申请日：1983-06-20

Applicant: CATERPILLAR TRACTOR CO.

Inventor： CATERPILLAR TRACTOR CO. ,  BOGGS, Roger, L. ,  TONSOR, Andrew, James

IPC: B62D55/20

CPC classification number: B62D55/286

Abstract: A roadable track assembly (12) includes a plurality of track shoes (14) having a roadable grouser (20) bar attached to each shoe (14). The grouser bar (20) is of a size, shape, and material to provide good penetration and traction in most soils and also provides acceptable wear life. A vehicle (10) equipped with an endless track assembly (12) having the subject grouser bars (20) can travel on asphalt type roadways without causing permanent damage to the roads. Track-type vehicles having conventional metal track shoe grousers often cause permanent damage when travelling upon asphalt roads. The subject roadable track shoe grousers (20) have sufficient surface area and resilience to produce low ground pressure on the roads and eliminate damage while providing sufficient traction for agricultural work.

公开(公告)号：WO1984000408A1

公开(公告)日：1984-02-02

申请号：PCT/US1982000933

申请日：1982-07-12

Applicant: CATERPILLAR TRACTOR CO. ,  STEVENS, Wallace, G.

Inventor： CATERPILLAR TRACTOR CO.

IPC: F16H03/22

CPC classification number: F16H3/30

Abstract: A multiple speed gear transmission (10) of the sliding gear type includes an input shaft (12) disposed on a first axis (14), and alayshaft (16) disposed on a second axis (18) and having a forward gear (26), a reverse gear (28) and first and second drive gears (124, 122) connected for joint rotation therewith. A reverse idler gear (54) is connected to the reverse gear (28), and a first sliding gear (82) is used for connecting the input shaft (12) to either the forward gear (26) or the reverse idler gear (54) and driving the layshaft (16) in either direction of rotation. An output shaft (44) disposed on the first axis (14) is selectively connected to one of the first and second drive gears (124, 122) by second and third sliding gears (102, 104) respectively. Five forward and four reverse speeds can be provided by the transmission (10) using four conveniently shiftable coupling elements (82, 98, 100, 128).

Abstract translation: 滑动齿轮型的多速齿轮传动装置（10）包括设置在第一轴线（14）上的输入轴（12）和设置在第二轴线（18）上并具有前进齿轮（26）的空调轴（16） ，倒档齿轮（28）以及连接以与其联动旋转的第一和第二驱动齿轮（124,122）。 倒档惰轮（54）连接到倒档齿轮（28），第一滑动齿轮（82）用于将输入轴（12）连接到前进档（26）或倒档惰轮（54） ）并沿任一旋转方向驱动副轴（16）。 设置在第一轴线（14）上的输出轴（44）分别通过第二和第三滑动齿轮（102,104）选择性地连接到第一和第二驱动齿轮（124,122）中的一个。 变速器（10）可使用四个方便可移动的联接元件（82,98,100,128）提供五个前进和四个倒档。

公开(公告)号：WO1984000334A1

公开(公告)日：1984-02-02

申请号：PCT/US1982000935

申请日：1982-07-12

Applicant: CATERPILLAR TRACTOR CO. ,  SCHNEIDER, Marvin, L. ,  GOLAN, Kenneth, F.

Inventor： CATERPILLAR TRACTOR CO.

IPC: B60T13/22

CPC classification number: B66D5/26 ,  F16D2121/12

Abstract: A brake control system (10) for controlling engagement and disengagement of a spring applied pressure released brake (11) of a winch and includes an orifice (39) and a relief valve (37) connected in series to the outlet port of a metering pump (23) to relieve pressure in the outlet port at a lower than normal pressure level when the fluid flow therethrough is below a predetermined flow rate. Relieving the pressure at the outlet port of the metering pump reduces the pressure differential between the inlet port (24) and outlet port (26) of the metering pump and thereby drastically reduces the internal leakage within the metering pump so that the metering pump is operative to pump fluid from the actuating chamber (14) at the slow rotational speeds of the rotatable member (12).

Abstract translation: 一种用于控制绞盘的弹簧施加的压力释放制动器（11）的接合和分离的制动控制系统（10），并且包括与计量泵的出口串联连接的孔口（39）和安全阀（37） （23），当流体流过其中的流量低于预定流量时，在低于正常压力水平的情况下减轻出口压力。 减轻计量泵出口处的压力降低了计量泵的入口（24）和出口（26）之间的压力差，从而大大降低了计量泵内的内部泄漏，使计量泵工作 以可旋转构件（12）的缓慢旋转速度从致动室（14）泵送流体。