JPS5943255A - Operation controller of clutch for fluid torque converter - Google Patents

Abstract

PURPOSE:To provide slippage of a clutchboard under low temperature of engine by opening/closing a conduction hole made through the clutchboard while utilizing variation of viscosity due to the temperature change of fluid. CONSTITUTION:Fluid will flow from the control chamber 11 into a gap 16 between a clutchboard 9 and an open/close member 15 in reverse direction from the rotary direction of the clutchboard 9 to apply the rolling force to the open side onto said member 15 due to viscous resistance of fluid. Under low engine temperature, the viscosity of fluid is high to increase the rolling force of said member 15 thus to reduce the differential pressure across both side faces of the clutchboard 9 thereby slippage is allowed against the input case 4 to prevent engine stall in low rotation area under low temperature and transmission of engine rotary variation to the output side while upon increase of rotation centrifugal force functioning onto a weight 15b will overcome said rolling force to reset said member 15 to the neutral position thus to close a conduction hole 14 and to transmit torque under mechanical direct-coupled state.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is directed to the development of a fluid torque converter river clutch mainly used for offshore dual use.
``Regarding the ll device.

Conventionally, for example, according to USP, '1252352, a fluid torque connected to a human power shaft is surrounded by a human power case on one side and a pump wheel on the other side connected to the human power shaft. In the internal cavity of the converter body, a turbine connected to the output shaft: r'g<j'rl,'); s.
11; At the same time, a clutch, 11, which is housed in the output shaft between the turbine wheel and the human power wheel, is installed in the shaft 1, the mountain 15, and the clutch 11; Clutch plate picture 1
ljll 1 (ii K-fT river/1- The gangway (4V!) can be freely engaged and disengaged from the input case according to the fluid pressure difference, and the clutch plate can be connected to the input case during high-speed cruising etc. When engaged -11, the flow is 4% l+li l'l·1 torque transmission between the input and output shafts via the clutch plate.

Y) in the body torque converter? Riwo 1111; B small 17
,・) 2: I don't know what I could do to improve this cost.
However, in the case of .:, the clutch plate is engaged regardless of the engine temperature, and in this case, when the engine is cold, the engine rotation is unstable and the throttle opening changes ]+i'
, ) is there enough output? 1) Low temperature II! ? If the clutch plate is engaged, engine stall may occur, and fluctuations in engine rotation will be directly transmitted to the output side, causing inconveniences such as the movement of the vehicle body.

An object of the present invention is to provide an operation control device for a monthly clutch of a fluid torque converter that eliminates such inconveniences. : A turbine wheel connected to the output shaft is installed in the internal gap of the fluid l/lux converter main body surrounded by the pump wheel on the other side connected to the pump wheel. The clutch plate connected to the output shaft can be freely moved in the axial direction between the
, in which the clutch plate can be freely engaged and disengaged from the input case in response to a fluid pressure difference acting on both sides of the clutch plate, the clutch plate is provided with a connection connecting the two j01, and the input case (jll side...1 has M
? p; Open/close Z1 without opening/closing hole Iiii! i+ 't iJ
− to (:y++, f5 to the input path of the clutch plate
Also α1(1 mouth"-(tljr, the opening/closing part 4A and the input lease and o)liil o)3.1,)'j)/and.

Between [1: of the fluid flowing in i: 慴J-It';
'[', open/close 1'+, ij il'ri operates on the F side)']゛(Toru.

Next, the present invention will be described in ['+゛] [Song Jil'ti, 1
I. 1st day: J2. i, j tll placed.

On the 1st and 4th sides, (1) is the same 'till 1)ii on fQ
'jp, C knee yr: > input 11 wa [102] connected to gin and middle white I'N shun QII 4 "1.jl that fu; to negative value /) output t' 1ll (3) 7 A fluid l with
The main body (1) has an input case (4) on the 11 side connected to the input shaft (2), and an input case (4) 6J-J. The rear pump R-'tj (51) to be connected (I is connected) and the input case (4) and the pump impeller (5) are surrounded.
A turbine wheel ('7) connected to the output shaft (3) and the turbine 7,!
, 7 (car (7) and the stator wheel (8) between the 11q pump τ''(!''i) and σ) according to (Iiif, the human power! 1llll (2) σ) rotation. Wing wheel (5
) (7) (8) [414 is formed so that the body is circulated through the internal b1 to give a fluid torque transmission to the output M (31), and further the turbine lake offshore (7) and the human power case ( 4) Clutch plate (9) that is movable in the axial direction between
The clutch plate (9) is provided with a damper spring, for example, and can be freely engaged and detached from the input case (4) in response to a fluid pressure difference acting on both rear sides. jq! to the turbine wheel (7) via (10). and is connected to the output shaft (3) at the turbine wheel (7), and thus, according to the engagement of the clutch plate (9) to the input case (4), the input shaft ( 2) → Human power case (4) → Clutch plate (9) → Damper spring (1
0) -> Turbine impeller (7) -> Output shaft (3) Mechanical torque transmission was provided in the thread path.

To explain this further in detail in addition to the one shown in the figure, the clutch plate (
9) has an internal gap (C, the fluid pressure in i) on the rear side,
Fluid pressure in the control chamber Ql) between this and the input case (A) is applied to the front side of the input case (A), and the control ? Do (11)
The forward movement is performed by reducing the fluid pressure inside the output shaft (3) with a fluid pressure control device (not shown) connected through the shaft hole (12) of the output shaft (3). The input case (4) is frictionally engaged with the input case (4).

According to the invention, the clutch (thousand one (9)
Between the side surfaces; 13 consecutive holes (11) that are reversed, and corresponding holes (1) on the side surface of the input case (4).
4) Open/close 7'1 (-4-(115+)
:) Eye, ii, I' (When the clutch plate (()) engages and rotates to the detail cuckoo (・1), the corresponding 111+closing part I"4.'
(151 and irihuman power source (1)>Ay,
Jn3 while 1+<i (16) 2nd flow;? l Z>
ill body (7) V'+'in t! ! : The opening/closing part +4' (15) is moved to the opening side/, so that the opening/closing part +4' (15) is t, 7' knee.

The one shown is the blunt opening/closing part 1. A (15j?, t, 1-nucle clutch plate (9) is made of a radially long plate piece which is swingably riveted θ7)1), and the rotation direction of the clutch plate (9) is According to the 1711 movement in the opposite direction of IRr field in Fig. 2, the notch (15a
) matches the communicating holes 0, 1) and the connecting holes (I Il)
), and then tl on the radially outer side M'+.
(By forming the weight part (15b), the rotation of the clutch plate (9)? It was changed back to .

In the drawing, (18) prevents this engagement operation from the internal space 14hj (6) to the control chamber (11) when the clutch plate (9) is engaged 11j+. This figure shows small holes formed in the clutch plate (9) to allow fluid to flow through the clutch plate (9), and a stopper that restricts the swing range of the opening/closing part (05).

Next, to explain its operation, when the clutch plate (9) engages and rotates with the input case (4), the opening/closing part, Nt(+!'i
The fluid in the control chamber (11) flows in the direction of rotation of the clutch plate (9), that is, in the clockwise direction, and in the direction of the clockwise direction and the direction of the rotation of the clutch plate (9). Due to the viscous resistance, a swinging force is applied to the opening/closing part (15) in the counterclockwise direction, that is, toward the opening side.

In this case, when the engine is at a low temperature, the viscosity of the fluid is high, and therefore the opening/closing part 1;(' )
is swung to the position where the through hole (14) is opened, and the control chamber (l) of the fluid from the hole (14) is z'3<jTj.
The inflow of ) -\ reduces the pressure difference between both sides of the clutch plate (9) by ) +9, reducing the latch capacity and increasing the pressure between the clutch plate (9) and the input case (4). This prevents the occurrence of engine stall in the low rotation range at low speeds and the transmission of engine speed to the output side, and then increases the rotation speed and prevents the engine from stalling in the low rotation range. 15
b) without acting on one, tJ,',j mental force is struck by this oscillating force jl, nine, ``,f,r Ijll closed section interest (l!
i) Return to neutral position. I
f conversion (1zu) 4: Close, 1.7 - Pressure cut 1' between both sides of clutch plate (9) by tapping t' , t: Torque at fr yo is performed t
'Iru.

When the engine is at high temperature, the viscosity of the fluid 1'1: is low (, ; Therefore, the opening/closing part Eii (]5) is lower in oil and medium, F\'r 1:"
7 was restored, and the area ('11 mechanical direct connection, torque transmission at 'Hi' or 17 Wa Z) was expanded, and
The direction of 5ζ cost -1- is 14 "LA".

Incidentally, the swinging force due to the viscous resistance of the fluid acting on the opening section 4II (15) is due to the oscillating force due to the viscous resistance of the fluid that is applied to the opening section 4II (15) during the clamping interval 1 (t') between the opening and closing section 4II (15) and the collar (4). fi), and as shown in the example above, if l! The strokes 11j &, - are also affected and accurate dimensional control is required.

In this case, 7J5111 not shown in 3 [4 and 41] 4.
Is there a ring in the input case (4) as in the Ji example? 'Il<
4: (' (!fl) is a ≧ 1 digit, opening/closing section interest (15
) and the ring part (2+, l+, 1-) so that the gap θG in the ?11 direction is maintained.
S: 'S principle is tolerating.

As described above, according to the present invention, the viscosity t due to the temperature change of the fluid is
Utilizing the change in l+, the il? consists of a communication hole provided in the clutch plate and an opening/closing part. ijj? This system is designed to provide i′i-f of the clutch plate when the engine is at low temperature, eliminating the above-mentioned disadvantages of the conventional method, eliminating the need for a complicated control mechanism, and simplifying the structure. It has the effect of being inexpensively (1).

[Brief explanation of drawings]

Fig. 1 is a cut side view of one example of the device of the present invention, Fig. 2 is a front view of the clutch plate, Fig. 3 is a cut side view of another embodiment, and Fig. 4 is a cut side view of the clutch plate. The front side is 1", 'l. (1)...Fluid torque converter body (2)...
Human power 1tql+ (31...output shaft (4)...
Input case (5)...Pump impeller (6)...Internal gap (7)...1 turbine wheel (9)...Clutch plate (1a)...Communication hole (15)・Opening/closing "a"
lt 4:4' (16)...Narrow 121 gap Patent applicant Honda Motor Co., Ltd. agent
Kin Kitamura - 2 others t“・：H'tH￥4
! H-3: U1 Figure 1 Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] One side input case connected to input 'All' and the human power l
- surrounded by the pump impeller on the other side connected to the base) 51
A turbine wheel connected to the output shaft is installed in the internal space 8j:j of the L-body torque converter main body, and a turbine wheel connected to the output shaft is connected between the turbine wheel and the input case. A clutch plate is struck so as to be movable in the axial direction, and the clutch plate can be freely engaged and disengaged from the glare input case in response to a fluid pressure difference acting on both sides of the clutch plate. The opening/closing part is moved in the opposite direction due to the viscous resistance of the fluid flowing in the gap between the opening/closing member and the input case when the input case is engaged with the input case. ? ：Drop '>4t body) Luk converter clutch actuation control fI'Ill device.